KR101327054B1 - Connetor for mobile device and circuit board for Communication module - Google Patents

Abstract

The connector for a mobile communication terminal according to an embodiment of the present invention includes a first body portion having a first ground pattern formed on a circumferential side thereof, and a first coupling portion formed at a central side of the first body portion and having a first terminal pin formed thereon. 1 connector portion; And a second body part in contact with the first body part and having a second ground pattern formed on a circumferential side thereof, formed at a central side of the second body part, coupled to the first coupling part, and energized with the first terminal pin. It includes a second connector portion including a second coupling portion formed with two terminal pins. In addition, the communication module substrate according to the present invention includes a connector for a mobile communication terminal including the first connector and the second connector; RF element unit for processing the RF transmission and reception signal; And a third ground pattern formed between the connector and the RF element portion.

According to an embodiment of the present invention, radio sensitivity is not caused to adjacent RF blocks and does not affect RF signal characteristics, thereby improving radio sensitivity. In addition, not only the structure of the connector itself but also the secondary shielding method can be introduced through the grounding structure of the board itself, so that interference can be suppressed as much as possible. There is an effect that can increase.

Description

Connector for communication terminal and board for communication module {Connetor for mobile device and circuit board for Communication module}

1 is a diagram illustrating a general connector structure of a main board provided in a mobile communication terminal.

Figure 2 is a top view showing the form of a first connector portion constituting a connector for a mobile communication terminal according to an embodiment of the present invention.

3 is a perspective view illustrating a form in which a connector for a mobile communication terminal according to an embodiment of the present invention is coupled;

Figure 4 is a perspective view showing the form of the first connector portion constituting a connector for a mobile communication terminal according to an embodiment of the present invention.

5 is a view illustrating a form in which a connector for a mobile communication terminal according to an embodiment of the present invention is installed on a main board of a mobile communication terminal.

6 is a view showing the form of a communication module substrate according to an embodiment of the present invention.

Description of the Related Art

110: first connector portion 112: flexible circuit board

114: first body portion 115: first coupling portion

116: first terminal pin 118: first ground pattern

119a and 119b: conductive film 120: second connector portion

122: second body portion 124: second ground pattern

126: second coupling portion 128: second terminal pin

200: communication module substrate 210: RF element

220: third ground pattern

The present invention relates to a connector for a mobile communication terminal and a communication module substrate using the same.

Currently, mobile communication terminals such as mobile phones, smart phones, PDAs (Personal Digital Assistants), and DMB (Digital Multimedia Broadcasting) phones are mostly equipped with camera modules and LCD modules, and have a function of capturing and displaying images.

1 is a diagram illustrating a general connector structure of a main board provided in a mobile communication terminal.

According to FIG. 1, an antenna module 20 is mounted on the upper left end of the main board A of the mobile communication terminal. An antenna pattern 22 is formed on a substrate, and connection terminals 23 and 24 are formed below the substrate. .

The antenna connection terminals 31 and 32 of the main board A are connected to the antenna switch 30 located at the bottom thereof, and are connected to and contact the connection terminals 23 and 24 of the antenna module 20.

The antenna switch 30 separates and transmits a signal transmitted and received from the antenna module 20, and the RF block 33 is connected to the antenna switch 30 to process an RF transmission / reception signal.

On the other hand, mobile communication terminal products are mostly produced in a folding type or a slide type, in this case, the camera module or LCD module is installed in the housing of the front part that rotates or slides, and the main board (A) and the flexible circuit board Has a configuration to be connected.

Accordingly, the main board A installed in the rear housing includes a connector 34 to receive a signal from the flexible circuit board.

In this case, the wired sensitivity of the terminal (generally, when measuring the wired sensitivity, the measuring instrument is connected to the terminal side through the antenna switch 30 and directly connected to the antenna switch 30 through the cable) to influence the influence of the flexible circuit board. I rarely get it.

However, in the case of radiosensitivity (generally, in the case of measuring radiosensitivity, the measuring instrument is connected to the terminal side through the antenna module 20), the type of the connector and the flexible circuit board, and the ground state are greatly affected.

This electromagnetic interference phenomenon occurs more severely when using an internal antenna (currently, most mobile communication terminal products use an internal antenna) than when using an external antenna, as shown in FIG. However, there is a problem that the RF signal characteristics are degraded by the influence of the flexible circuit board.

An embodiment of the present invention provides a connector for a mobile communication terminal having a shielding structure so as not to cause radio interference on the RF block side on the main board, and does not affect the RF signal characteristics.

An embodiment of the present invention provides a communication module substrate capable of secondary shielding between an RF block and a connector for a mobile communication terminal having a shielding structure.

The connector for a mobile communication terminal according to an embodiment of the present invention includes a first body portion having a first ground pattern formed on a circumferential side thereof, and a first coupling portion formed at a central side of the first body portion and having a first terminal pin formed thereon. 1 connector portion; And a second body part in contact with the first body part and having a second ground pattern formed on a circumferential side thereof, formed at a central side of the second body part, coupled to the first coupling part, and energized with the first terminal pin. It includes a second connector portion including a second coupling portion formed with two terminal pins.

A communication module substrate according to an embodiment of the present invention includes a connector for a mobile communication terminal including the first connector portion and the second connector portion; RF element unit for processing the RF transmission and reception signal; And a third ground pattern formed between the connector and the RF element portion.

Hereinafter, a connector for a mobile communication terminal and a board for a communication module according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a top view illustrating a form of a first connector unit 110 constituting a connector for a mobile communication terminal according to an embodiment of the present invention.

First, a connector for a mobile communication terminal according to the present invention comprises two parts, namely, a first connector part and a second connector part. One of the two connector parts includes an LCD module provided at a cover part side of the mobile communication terminal. A connector portion connected to a connector module and the like with a flexible circuit board, and the other connector portion is a connector portion mounted on the main board on the main body side.

In addition, the first connector portion and the second connector portion are combined with a ground pattern, respectively, to generate an electromagnetic shielding effect. In this case, the coupling structure of the two connector portions may use various methods.

In an embodiment of the present invention, the first connector portion is a connector portion having a flexible circuit board, and the second connector portion is a connector portion mounted on the main board.

In addition, the first connector portion and the second connector portion is a female / male form, that is, using a method of coupling in the form of grooves and protrusions, the first connector portion corresponds to the male form, the second connector portion corresponds to the female form. Shall be.

2, the first connector 110 includes a flexible circuit board 112, a first body part 114, a first coupling part 115, a first terminal pin 116, and a first ground pattern. 118, and the flexible circuit board 112 is connected to the camera module 10 located at the cover side of the mobile communication terminal.

Briefly with respect to the camera module 10, the camera module 10 includes a lens barrel 12, a lens 13, a housing holder 14, the substrate portion 15, the lens barrel 12 Silver secures the lens 13 to the inside.

The housing holder 14 couples the lens barrel 12 to the upper side and the substrate 15 to the bottom, and provides a housing space to protect circuit elements mounted on the substrate 15.

The substrate unit 15 mounts an optical conversion element and a circuit element and is connected to the flexible circuit board 112.

On the other hand, the first body portion 114 of the first connector portion 110 is a rectangular structure made of a synthetic resin material, the first coupling portion 115 is formed on the upper surface, the flexible circuit board 112 on the lower surface ) Is combined.

The first coupling portion 115 is a rectangular structure having a smaller size than the first body portion 114, and serves as a male coupling body, the first terminal pin 116 is formed on the opposite sides.

The first terminal pin 116 is electrically connected to the flexible circuit board 112 by a line passing through the inside of the first body 114.

At this time, the first ground pattern 118 is formed on the circumferential side of the upper surface of the first body portion 114 where the first coupling portion 115 is not formed, and the first ground pattern 118 is formed of Al, Cu, It is a kind of metal film made of metal material such as Ag.

The first ground pattern 118 is formed to surround the outer surface including the circumferential side of the upper surface of the first body portion 114.

In other words, the first ground pattern 118 is formed in the form of a bellows to have a structure surrounding the first coupling portion 115 from the outside, which is the electromagnetic signal generated from the first terminal pin 116 side This is to prevent the leakage of oil into the gap.

3 is a perspective view showing a form in which a connector for a mobile communication terminal is coupled according to an embodiment of the present invention.

Referring to FIG. 3, a form in which the first connector 110 and the second connector 120 of the connector for a mobile communication terminal according to an embodiment of the present invention are coupled to the second connector 120 is illustrated. ) Has a structure corresponding to the first connector 110, including a second body portion 122, a second ground pattern 124, a second coupling portion 126, a second terminal pin 128 Is done.

The second body portion 122 of the second connector portion 120 is a rectangular structure made of a synthetic resin material, the second coupling portion 126 is formed on the upper surface, the main board of the mobile communication terminal on the lower surface Combined with (A).

The second body portion 122 is preferably formed in the same size as the first body portion 114, in particular the shape of the upper surface in contact with the first body portion 114 is the same as the first body portion 114 It is good to be formed.

The second body portion 122 has a square groove is etched therein to form the second coupling portion 126, and the second coupling portion 126 provides the coupling force by fitting the first coupling portion 115. Acts as a female conjugate.

In addition, the second coupling part 126 forms a second terminal pin 128 on opposite sides of the inside, and the second terminal pin 128 is a portion that is elastically energized with the first terminal pin 116. As corresponded to each other.

The second terminal pin 128 is electrically connected to the line pattern A1 of the main board A by a line passing through the inside of the second body 122.

The second ground pattern 124 is formed to surround the outer surface of the second body portion, including a circumferential side on which the second coupling portion 126 is not formed among the upper surfaces of the second body portion 122. The structure is similar to the ground pattern 118.

When the first coupling part 115 and the second coupling part 126 are coupled to each other so that the first body part 114 and the second body part 122 contact each other, the contact surfaces of the body parts 114 and 122 respectively. The first ground pattern 118 and the second ground pattern 124 are also in contact with each other.

Accordingly, the first ground pattern 118 and the second ground pattern 124 are electrically connected to each other without any gap on the contact surface, and there is no gap in which the electromagnetic signal leaks.

The second ground pattern 124 may be formed of the same material and shape as the first ground pattern 118, and may be connected to a ground terminal (not shown) on the main board A to shield a signal.

Through such a structure, when the first connector unit 110 and the second connector unit 120 are coupled, the first ground pattern 118 and the second ground pattern 124 become a kind of shield case shape, so that the terminals It is possible to prevent the electromagnetic field signal generated at the pins 116 and 128 from affecting adjacent RF elements.

4 is a perspective view illustrating a form of a first connector unit 110 constituting a connector for a mobile communication terminal according to an embodiment of the present invention.

Referring to FIG. 4, a form of the flexible circuit board 112 connected to the first body part 114 is illustrated. The flexible circuit board 112 forms conductive films 119a and 119b on the top or bottom surface thereof.

In an embodiment of the present invention, the conductive films 119a and 119b are formed on both upper and lower surfaces of the flexible circuit board 112 and may be formed using a member such as a conductive tape.

Accordingly, the electromagnetic signal generated from the flexible circuit board 112 may be shielded by the conductive layers 119a and 119b. The connector for the mobile communication terminal according to the present invention may be connected to the terminal pins 116 and 128 through such a structure. It is possible to effectively shield all the electromagnetic signal generated from the side and the flexible circuit board 112 side.

5 is a diagram illustrating a form in which the connectors 110 and 120 for a mobile communication terminal according to an embodiment of the present invention are installed on the main board A of the mobile communication terminal.

The electromagnetic signal generated from the flexible circuit board 112 is shielded on the conductive films 119a and 119b, and as shown in FIG. 5, the connectors 110 and 120 according to the present invention are connected to the main board of the mobile communication terminal. When mounted to A), it is possible to isolate the electromagnetic field signal to the outside by the electrical contact with a predetermined ground plane provided inside the mobile communication terminal housing (B).

Usually, the housing (B) of the mobile communication terminal serves to fix various structures such as mounting the main board (A) inside and mounting the battery (C) to the outside, the electromagnetic signal generated from the main board (A) In order to suppress the EMI coating agent (D) is applied to the inner surface of the housing or various structures.

The conductive layers 119a and 119b may be energized with a ground plane such as, for example, a portion on which an EMI coating agent (D) is applied.

In addition, the conductive layers 119a and 119b may be connected to the first ground pattern 118 and the second ground pattern 124 to isolate the shielded signal. In this case, the first ground pattern 118, The second ground pattern 124 and the conductive layers 119a and 119b may function as an integrated shield structure.

Hereinafter, a communication module substrate according to an embodiment of the present invention will be described.

6 is a view showing the form of a communication module substrate 200 according to an embodiment of the present invention.

Referring to FIG. 6, the RF device unit 210 including the antenna module 212, the antenna switch 214, and the RF module 216 is positioned on the left side of the communication module substrate 200, and the substrate 200 is located. The right side of the connector 230 is mounted.

The connector 230 is the same configuration as the above-described connector 110, 120 for the mobile communication terminal according to the present invention will be omitted repeated.

In addition, a third ground pattern 220 is formed between the RF element unit 210 and the connector 230. The third ground pattern 220 is a line metal film formed by a plating method or an adhesive method. The radio wave interference between the device unit 210 and the connector 230 is blocked.

As such, when the connector 110, 120; 230 and the communication module substrate 200 according to the present invention are applied to the mobile communication terminal, the influence of the signal transmitted from the LCD module and the camera module may be effectively shielded.

Although the present invention has been described above with reference to the embodiments, these are merely examples and are not intended to limit the present invention. It will be appreciated that various modifications and applications are not illustrated. For example, each component specifically shown in the embodiments of the present invention can be modified and implemented. It is to be understood that all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

According to the embodiment of the present invention, the following effects are obtained.

First, since it does not cause radio interference in the adjacent RF block and does not affect the RF signal characteristics, there is an effect that can improve radio sensitivity.

Second, the secondary shielding method can be introduced not only by using the structure of the connector itself but also through the grounding structure of the board itself, so that interference can be suppressed as much as possible. There is an effect that can increase.

Claims (10)

A first connector part including a first body part having a first ground pattern formed on a circumferential side thereof, and a first coupling part formed at a central side of the first body part and having a first terminal pin formed thereon; And A second body part in contact with the first body part and having a second ground pattern formed on a circumferential side thereof, a second body part formed at a center side of the second body part to be coupled to the first coupling part and to be energized with the first terminal pin; A second connector part including a second coupling part having a terminal pin formed thereon; The first connector portion or the second connector portion A flexible circuit board electrically connected to the first terminal pin or the second terminal pin; The flexible circuit board connector for a mobile communication terminal having a conductive film formed on at least one surface. The method of claim 1, wherein the first coupling portion and the second coupling portion Connector for mobile communication terminal which is mutually bound in male and female form. The method of claim 1, wherein the first ground pattern and the second ground pattern When the first body portion and the second body portion are in contact, the connector for a mobile communication terminal is contacted and electrically connected. The method of claim 1, wherein the first ground pattern It is formed to the outer surface including the contact surface of the first body portion, The second ground pattern is Mobile communication terminal connector formed to the outer surface including the contact surface of the second body portion. The method of claim 1, wherein the first ground pattern It is a closed loop form of the structure surrounding the first coupling portion from the outside, The second ground pattern is A connector for a mobile communication terminal having a closed loop form and surrounding the second coupling part from the outside. delete The method of claim 1, wherein the conductive film Connector for mobile communication terminal including conductive tape. The method of claim 1, wherein the conductive film A connector for a mobile communication terminal in electrical contact with a predetermined ground plane provided inside the mobile communication terminal. The method of claim 1, wherein the conductive film A connector for a mobile communication terminal electrically connected to the first ground pattern or the second ground pattern. The mobile communication terminal connector according to claim 1; RF element unit for processing the RF transmission and reception signal; And a third ground pattern formed between the connector and the RF element.

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