KR101634285B1 - Smart phone case with antenna and method of manufacturing the same - Google Patents

Abstract

Disclosed are a cell phone case cover including an antenna, and a method for manufacturing the same which can improve productivity and reduce defect rates. The cell phone case of the present invention comprises a molding resin, a metal edge, and a back cover for the case. The molding resin includes an antenna pattern for receiving electromagnetic wave from outside. The metal edge is coupled to the molding resin. The back cover for the case is molded to be attached to the metal edge. Accordingly, the manufacturing method of the present invention: disposes the metal edge in a back cover mold after coupling the molding resin having the antenna pattern to the metal edge, and thus be able to dispose the molding resin and the metal edge at once, thereby reducing time consumed for disposition; and minimizes temperature reduction of the mold, and thus prevents a defect from occurring, thereby improving productivity.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a mobile phone case cover including an antenna,

The present invention relates to a cellular phone case cover and a method of manufacturing the same, and more particularly to a cellular phone case cover including an antenna and a method of manufacturing the same.

Currently, smartphones are becoming commonplace and widely used.

As the functions of smart phones become complex, smart phones include various kinds of antennas. In order to reduce the space, an antenna integrated with a smart phone case is used.

To this end, an antenna pattern for receiving an external electromagnetic wave is first put into a mold, and resin is injected to form a molded resin body. Thereafter, a formed resin body having an antenna pattern is inserted into a case back cover mold and resin is injected to manufacture a cellular phone case cover.

 On the other hand, in order to strengthen the impact on beauty and external force among smartphones, smartphone products with metal borders along the outside of smartphones are being launched.

However, in the case of a smart phone with a metal rim surrounded by a metal rim, the metal rim is inserted into a case back cover mold and injection molded to form a cellular phone back cover. The molded resin frame having the antenna pattern and the cellular phone back cover are placed in a case back cover mold The time is delayed, not only the productivity is lowered, but also the temperature of the mold is lowered and the defect is increased accordingly.

In order to solve this problem, only a metal frame is disposed in a case back cover mold and injection molding is performed to form a case back cover. A flexible printed circuit board (FPCB) on which an antenna pattern is formed is attached to a case back cover, It was attached later. However, there is a problem that attachment may be lowered and bubbles are generated in the antenna assembly process, resulting in frequent defects.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a cellular phone case cover including an antenna capable of improving productivity and reducing a defective ratio, and a method of manufacturing the same.

In order to solve such a problem, a cellular phone case cover according to an exemplary embodiment of the present invention includes a molded resin body, a metal rim, and a case back cover. The molded resin body has an antenna pattern for receiving external electromagnetic waves. The metal rim is fastened to the molded resin body. The case back cover is formed to adhere to the metal rim.

Meanwhile, the molded resin body may include a forming structure formed by disposing the antenna pattern and the antenna pattern in a mold, and injecting resin into the mold.

Alternatively, the molded resin body may include a molding structure formed by injecting resin into a mold, and a flexible circuit board (FPCB) formed with an antenna pattern and attached to the molding structure.

The metal frame includes at least one or more engagement holes, and the molded resin body includes the engagement protrusions. The engagement protrusions are coupled to the engagement holes by interference fit, The metal rim can be fastened.

Alternatively, the metal frame may include at least one or more engagement holes, and the molded resin body may include the engagement protrusions. After the engagement protrusions are inserted into the engagement holes, By welding, the molded resin body and the metal frame may be fastened together.

Alternatively, the metal frame may include at least one or more of the plurality of engagement holes, and the molded resin body may also include a plurality of through holes, so that the screw passes through the engagement hole of the metal frame and the through hole of the molded resin body , The molded resin body and the metal frame may be fastened together.

A method of manufacturing a cellular phone case cover according to an exemplary embodiment of the present invention includes the steps of fastening a molded resin body having an antenna pattern for receiving electromagnetic waves to a metal frame and a metal frame fastened to the molded resin body Placing the resin into the case back cover mold, and injecting resin into the case back cover mold.

At this time, the molded resin body may be formed through a process including disposing the antenna pattern inside a mold of a forming structure, and injecting resin into the forming structure mold.

Alternatively, the molded resin body may include a step of forming a molding structure formed by injecting resin into a mold of a molding structure, and a step of attaching a flexible circuit board (FPCB) on which the antenna pattern is formed to the molding structure .

Meanwhile, the step of fastening the molded resin body having the antenna pattern with the metal rim may include preparing the metal rim including at least one of the plurality of engaging holes, preparing a metal rim corresponding to the at least one or more engaging holes Preparing the molded resin body including a plurality of engaging projections, and engaging the engaging projections with the engaging holes by interference fit.

Alternatively, the step of fastening the molded resin body having the antenna pattern with the metal frame may include preparing the metal frame including at least one or more of the plurality of engagement holes, The method comprising the steps of preparing the molded resin body including a plurality of engaging projections, inserting the engaging projections into the engaging holes, and pressing the engaging projections with the engaging projections to melt or melt the engaging projections .

Alternatively, the step of fastening the molded resin body having the antenna pattern with the metal rim may include the steps of preparing the metal rim including a plurality of through holes, and a plurality of metal ridges corresponding to the at least one The step of preparing the molded resin body including the engaging projections and the step of rotating the screw to pass through the through holes of the metal frame and the molded resin body to thereby fasten the molded resin frame and the metal frame .

According to the mobile phone case cover including the antenna according to the present invention and the method of manufacturing the same, after the molded resin body having the antenna pattern is bonded to the metal frame, the metal frame is disposed in the case back cover mold, It is possible to arrange them at one time, so that not only the time required for the arrangement can be reduced, but also the productivity can be improved by minimizing the temperature drop of the mold, thereby preventing defects.

In addition, since the antenna pattern is molded in the case back cover and integrally formed, it is possible to prevent defects.

1 is a perspective view showing a rear surface of a smartphone having a metal rim according to an exemplary embodiment of the present invention.
2 is a perspective view showing the metal frame shown in FIG. 1. FIG.
3 is a perspective view of a molded resin article having an antenna pattern coupled with the metal frame shown in Fig.
4 is a perspective view showing the back surface of the molded resin body shown in Fig.
5 is a perspective view showing the back surface of a molded resin body according to another embodiment.
6 is an exploded perspective view showing a molded resin body according to still another embodiment.
7 is a flowchart illustrating a method of manufacturing a mobile phone case cover according to an exemplary embodiment of the present invention.
8 is a cross-sectional view schematically showing a state in which antenna patterns are arranged inside a mold of a forming structure for forming a molded resin body according to Figs. 3 and 4. Fig.
9 is a cross-sectional view schematically showing a state in which a molded resin body is disposed inside a case back cover mold for forming a cellular phone case cover.

The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures may be exaggerated to illustrate the present invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprising" or "having ", and the like, are intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof. In addition, A and B are 'connected' and 'coupled', meaning that A and B are directly connected or combined, and other component C is included between A and B, and A and B are connected or combined .

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not. Also, in the claims of a method invention, each step may be reversed in order, unless the steps are clearly constrained in order.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

FIG. 1 is a perspective view showing a rear surface of a smartphone having a metal frame according to an exemplary embodiment of the present invention, FIG. 2 is a perspective view showing a metal frame shown in FIG. 1, Fig. 4 is a perspective view showing the back surface of the molded resin body shown in Fig. 3; Fig.

1 to 4, a cellular phone (or smartphone 100) according to an exemplary embodiment of the present invention includes various electronic components (not shown) and a cellular phone case cover therein, And includes a molded resin body 130, a metal rim 110, and a case back cover 120.

The molded resin body 130 has an antenna pattern 131 for receiving external electromagnetic waves. The molded resin body 130 may include a molding structure 132 formed by disposing the antenna pattern 131 and the antenna pattern 131 in a mold and injecting resin into the mold. The forming structure 132 may be formed by injecting a plastic resin into the mold. The antenna pattern 131 may be exposed to the outside of the forming structure 132 or may not be exposed to the outside of the forming structure 132.

The metal rim 110 is fastened to the molded resin body 130. 2, the metal frame 110 includes at least one or more coupling holes 111. As shown in FIG. 4, the molded resin body 130 includes the coupling protrusions The molded resin body 130 and the metal frame 110 can be fastened to each other by engaging the coupling protrusion 1321 with the coupling hole 111 by interference fit.

Alternatively, the metal rim 110 may include at least one or more than one plurality of engagement holes 111, and the molded resin body may include the engagement protrusion 1321, The molded resin body 130 and the metal rim 110 may be fastened by fusing or welding the fastening protrusion 1321 after being inserted into the metal frame 111. [

Further, the case back cover 120 is formed to be attached to the metal frame 110. At this time, the metal rim 110 may include a contact protrusion 112 for close contact with plastic when the case back cover 120 is formed. These contact protrusions 112 prevent the metal rim 110 from being separated from the plastic.

5 is a perspective view showing the back surface of a molded resin body according to another embodiment. The molded resin body shown in Fig. 5 is substantially the same except that a through hole is formed instead of the coupling projection of the molded resin body shown in Fig. Accordingly, the same or similar components are denoted by the same reference numerals, and redundant description is omitted.

Referring to FIGS. 2 and 5, a plurality of through holes 1322 are formed in the molded resin body 130 according to another embodiment of the present invention. That is, the metal rim 110 includes at least one or more of the plurality of engagement holes 111, and the molded resin body 130 also includes a plurality of through holes 1322 so that a screw (not shown) The molding resin body 130 and the metal frame 110 may be fastened by passing through the coupling hole 111 of the frame 110 and the through hole 1322 of the molded resin body 130. [

6 is an exploded perspective view showing a molded resin body according to still another embodiment. In the above embodiments, the molded resin body is formed by placing the antenna pattern of the metal in the metal mold and injecting the resin into the metal mold. However, in this embodiment, the antenna pattern is formed on the surface of the molding structure 132, The molded resin body 130 is formed by attaching the flexible circuit board FPCB on which the flexible printed circuit board 1331 is formed to the formed structure body 132. [

Although not shown, the back surface of the molded resin body 130 may have a coupling protrusion 1321 as shown in FIG. 4 or a through hole 1322 as shown in FIG. 5. Accordingly, the molded resin body 130 can be forcedly, fused, welded or screwed to the metal frame 110.

7 is a flowchart illustrating a method of manufacturing a mobile phone case cover according to an exemplary embodiment of the present invention.

Referring to FIG. 7, a method for manufacturing a mobile phone case cover according to an exemplary embodiment of the present invention includes a step S110 of fastening a molded resin body having an antenna pattern for receiving electromagnetic waves to a metal frame, (S120) of arranging the metal frame fastened to the molded resin body inside the case back cover mold, and injecting resin into the case back cover mold (S130).

For this, the molded resin body 130 shown in Figs. 3 to 6 is formed. The process of forming the molded resin body 130 will be described in detail with reference to FIG.

8 is a cross-sectional view schematically showing a state in which antenna patterns are arranged inside a mold of a forming structure for forming a molded resin body according to Figs. 3 and 4. Fig.

Referring to FIG. 8, first, a metal antenna pattern 131 is disposed in a lower mold 820 of a forming structure mold 800. Thereafter, the upper mold 810 of the forming structure mold 800 is lowered and brought into close contact with the lower mold 820, and the molten resin is injected through the injection hole IH.

6, the molding resin body 130 may be formed by forming a molding structure 132 formed by injecting resin into a mold of a molding structure, and thereafter molding the molding structure 132 using a flexible circuit board (FPCB, 133 ) May be attached to the forming structure 132.

The step of fastening the molded resin body having the antenna pattern with the metal rim (S110 in Fig. 7) includes the steps of preparing the metal rim 110 including at least one or more of the plurality of engagement holes 111 shown in Fig. 2 Preparing the molded resin body 130 including a plurality of engaging projections 1321 corresponding to the at least one or more engaging holes 111 shown in Fig. 4, (1321) to the coupling hole (111).

Alternatively, the step (S110 of FIG. 7) of fastening the molded resin body having the antenna pattern with the metal frame may be performed by using the metal frame 110 including at least one or more of the plurality of coupling holes 111 shown in FIG. Preparing the molded resin body 130 including a plurality of coupling protrusions 1321 corresponding to the at least one or more coupling holes 111 shown in FIG. 4; The step of inserting the coupling protrusion 1321 into the coupling hole 111 and the step of fusing or melting the coupling protrusion 1321 by pressing the coupling protrusion 1321 may be included.

Alternatively, the step (S110 in FIG. 7) of fastening the molded resin body having the antenna pattern with the metal frame may include a step of joining the metal frame 110 (FIG. 7) including at least one or more engagement holes 111 Preparing the molded resin body 130 including a plurality of through holes 1322 corresponding to the at least one or more coupling holes 111 shown in FIG. 5, And the screw is rotated to pass through the coupling hole 111 of the metal frame 110 and the through hole 1322 of the molded resin body 130 so that the molded resin body 130 and the metal frame 110 are fastened . ≪ / RTI >

Hereinafter, steps S120 and S130 in FIG. 7 will be described in more detail with reference to FIG.

9 is a cross-sectional view schematically showing a state in which a molded resin body is disposed inside a case back cover mold for forming a cellular phone case cover.

9, the metal frame 110 fastened to the molded resin body 130 is disposed on the lower mold 920 of the case back cover mold 900 (S120 in FIG. 7), and the case back cover mold 900 And the molten resin is injected through the injection hole IH (S130 in FIG. 7) to manufacture a mobile phone case cover.

According to the mobile phone case cover including the antenna according to the present invention and the method of manufacturing the same, after the molded resin body having the antenna pattern is bonded to the metal frame, the metal frame is disposed in the case back cover mold, It is possible to arrange them at one time, so that not only the time required for the arrangement can be reduced, but also the productivity can be improved by minimizing the temperature drop of the mold, thereby preventing defects.

In addition, since the antenna pattern is molded in the case back cover and integrally formed, it is possible to prevent defects.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: Smartphone
110: metal rim 111: engaging hole
112: contact projection 120: case back cover
130: molded resin body 131: antenna pattern
132: forming structure 1321: engaging projection
1322: Through hole 133: Flexible circuit board
1331: Antenna pattern
800: Molding structure mold
810: upper mold 820: lower mold
900: Case back cover mold
910: upper mold 920: lower mold
IH: injection hole

Claims (12)

A molded resin body having an antenna pattern for receiving external electromagnetic waves;
A metal frame fastened to the molded resin body; And
And a case back cover molded to be attached to the metal rim,
And the metal rim includes a contact protrusion for preventing the metal rim from being separated from the case back cover.
The method according to claim 1,
The above-
The antenna pattern; And
A forming structure formed by disposing the antenna pattern in a mold and injecting resin into the mold;
And a cover member for covering the cover member.
The method according to claim 1,
A forming structure formed by injecting a resin into a mold; And
A flexible circuit board (FPCB) on which an antenna pattern is formed and attached to the forming structure;
And a cover for covering the cover.
The method according to claim 1,
Wherein the metal rim includes at least one or more of a plurality of engagement holes,
Wherein the molded resin body includes a plurality of engaging projections corresponding to the at least one or more engaging holes,
And the engaging projections are engaged with the engaging holes by interference fit, whereby the molded resin frame and the metal frame are fastened together.
The method according to claim 1,
Wherein the metal rim includes at least one or more of a plurality of engagement holes,
Wherein the molded resin body includes a plurality of engaging projections corresponding to the at least one or more engaging holes,
Wherein the molded resin body and the metal frame are fastened by fusing or fusing the coupling protrusion after the coupling protrusion is inserted into the coupling hole.
The method according to claim 1,
Wherein the metal rim includes at least one or more of a plurality of engagement holes,
The molded resin body also includes a plurality of through holes,
Wherein the molded resin member and the metal frame are fastened together by passing a screw through the fitting hole of the metal frame and the through hole of the molded resin body.
Tightening a molded resin body having an antenna pattern for receiving an external electromagnetic wave with a metal frame;
Disposing a metal frame fastened to the molded resin body inside the case back cover mold; And
And injecting resin into the case back cover mold,
Wherein the metal frame is arranged to be formed outside the case back cover when the case back cover is formed, in the step of disposing the metal frame fastened to the molded resin body inside the case back cover mold Way. 8. The method of claim 7,
The above-
Disposing the antenna pattern inside the forming structure mold; And
Injecting a resin into the forming structure mold;
The method as claimed in claim 1,
8. The method of claim 7,
The above-
Forming a forming structure formed by injecting a resin into a forming structure mold; And
Attaching a flexible circuit board (FPCB) on which an antenna pattern is formed to the forming structure;
The method as claimed in claim 1,
8. The method of claim 7,
The step of fastening the molded resin body having the antenna pattern with the metal frame,
Preparing the metal rim, the metal rim including at least one or more engagement holes;
Preparing a molded resin body including a plurality of engaging projections corresponding to the at least one or more engaging holes; And
Coupling the coupling protrusion to the coupling hole by interference fit;
Wherein the method comprises the steps of:
8. The method of claim 7,
The step of fastening the molded resin body having the antenna pattern with the metal frame,
Preparing the metal rim, the metal rim including at least one or more engagement holes;
Preparing a molded resin body including a plurality of engaging projections corresponding to the at least one or more engaging holes;
Inserting the coupling protrusion into the coupling hole; And
Pressing the coupling protrusion on the coupling protrusion to melt or melt the coupling protrusion;
Wherein the method comprises the steps of:
8. The method of claim 7,
The step of fastening the molded resin body having the antenna pattern with the metal frame,
Preparing the metal rim including a plurality of through holes;
Preparing a molded resin body including a plurality of engaging projections corresponding to the at least one or more engaging holes; And
Rotating the screw to pass through the metal rim and the through hole of the molded resin body to thereby fasten the metal rim and the metal rim;
Wherein the method comprises the steps of:

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