KR101007611B1 - Terminal combination structure for personal porable device and method of combination method thereof - Google Patents

Abstract

The present invention relates to a terminal coupling structure and a coupling method of a personal portable terminal, by providing a connection member and a through hole for coupling the main PC and keypad PC built in the personal portable terminal, which can withstand external shocks To form a structure having a strong bonding force, and to achieve a stable contact holding force. In addition, the coupling structure is simple and can minimize the space of the connection portion, and easy to produce and join, and relates to a device and a method of joining to reduce the production cost.

Main PC, keypad PC, flexible circuit board, connection member

Description

TERMINAL COMBINATION STRUCTURE FOR PERSONAL PORABLE DEVICE AND METHOD OF COMBINATION METHOD THEREOF}

1 is a side cross-sectional view showing the inside of a conventional cellular phone.

FIG. 2 is a partially enlarged perspective view of a circuit unit for describing part II of FIG. 1.

3 is a perspective view illustrating a coupling state of a first connection part and a second connection part.

Figure 4 is a side cross-sectional view showing the interior of the personal portable terminal of the present invention.

5 is a plan view illustrating a main PC and keypad PC for explaining the terminal coupling structure of the personal portable terminal according to the first embodiment of the present invention.

FIG. 6 is a partially enlarged perspective view illustrating part VI of FIGS. 4 and 5.

7 is a partially enlarged perspective view illustrating the terminal coupling structure of the personal portable terminal according to the second embodiment of the present invention.

8 is a partially enlarged perspective view illustrating a terminal coupling structure of a personal portable terminal according to a third embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

50: personal portable terminal 100: keypad PC

110: second connection portion 120: second wiring portion

160: first connection portion 170: first wiring portion

150 ： main PC ratio 155 ： flex circuit board

The present invention relates to a terminal coupling structure and a coupling method of a personal portable terminal, which minimizes the space occupied by the connection portion between the main circuit unit and the keypad circuit unit, increases the coupling force of the connection portion, and improves the contact holding force. It relates to a structure and a bonding method.

A personal mobile terminal such as a mobile phone can perform various content functions such as mail transmission / reception, a camera, an MP3 and a GPS, and a circuit component capable of controlling such various content functions is attached to the circuit unit of the personal portable terminal. The circuit unit is composed of a main circuit unit that controls the power, volume, and transmission and reception of a terminal, and a plurality of auxiliary circuit units that control various auxiliary functions such as pressing a key button or implementing a display.

One side of the circuit unit is formed with a connection terminal to be electrically coupled with the other circuit unit.

1 is a side cross-sectional view showing the inside of a conventional cellular phone, and FIG. 2 is a partially enlarged perspective view of a circuit unit for explaining part II of FIG. 1 and 2, the mobile phone 1 is formed of a housing 6, and a display 2 and a keypad 4 are formed on a front surface of the mobile phone 1. A main circuit unit 10 is formed inside the mobile phone 1 to control main components such as a display 2, and a keypad circuit unit that detects the operation of the keypad 4 also under the keypad 4. 20 is formed. In addition, a flexible printed circuit board (FPCB) electrically connecting the main circuit unit 10 and the keypad circuit unit 20 to one side of the main circuit unit 10 includes the main circuit unit 10. And extends.

A first connection part 22 is formed on one side of the flexible circuit board 15, and the first connection part 22 is a circuit component (not shown) formed in the main circuit unit 10 and a first wiring made of a conductive material. It is electrically connected by the part 24. A second connection part 12 is formed on one side of the keypad PC 20, and the second connection part 12 includes circuit components (not shown) and a second wiring part 14 formed on the keypad circuit unit 20. Is electrically connected by

The first wiring part 24 may be formed on the top surface of the flexible circuit board 15, and the second wiring part 14 may be formed on the bottom surface of the second connection part 12. First and second ground points 26 and 2, respectively, are formed at one end of the first wiring part 24 formed in the first connection part 22 and the second wiring part 14 formed in the second connection part 12. 16) is formed.

An adhesive surface coated with an adhesive may be formed on an upper surface of the first connecting portion 22 and a lower surface of the second connecting portion 12 to couple the first connecting portion 22 and the second connecting portion 12. The first connection part 22 and the second connection part 12 may be attached to each other after being folded to be in contact with each other. In addition, the first connecting portion 22 and the second connecting portion 12 may be connected by using an adhesive tape (not shown).

3 is a diagram illustrating a coupling state of a first connection part and a second connection part. Referring to FIG. 3, an adhesive surface formed on an upper surface of the first connecting portion 22 and a lower surface of the second connecting portion 12 overlaps each other, wherein the first ground point 26 and the second ground point ( 16) Attach it so that the contacting ground area of 16) is the maximum.

Conventional bonding of the connection portion by the adhesive or adhesive tape has a weak bonding force can be easily detached by external impact. In addition, foreign matters such as dust and the like on the adhesive are easily adsorbed on the adhesive site, thus weakening the contact holding force. In addition, the complex structure reduces the efficiency of work in production and joining processes.

The present invention solves the above-mentioned problems, one object of the present invention relates to a terminal coupling structure and a coupling method of a personal portable terminal that can increase the terminal coupling force between the flexible circuit board and the keypad circuit unit.

Another object of the present invention relates to a terminal coupling structure and a coupling method of a personal portable terminal for improving the terminal contact holding force between the flexible circuit board and the keypad circuit unit.

Another object of the present invention is to simplify the terminal coupling of the flexible circuit board and the keypad circuit unit to facilitate the manufacture and coupling of components, and to provide a terminal coupling structure and a method of coupling of a personal portable terminal that can reduce the production cost. will be.

According to a preferred embodiment of the present invention for achieving the above object of the present invention, the personal portable terminal of the present invention transmits the main signal with the first connection, the push signal of the keypad and the keypad with the second connection At least one through hole is provided in the PCB and the first connection part or the second connection part, and the main PCB and the keypad PCB are electrically connected to each other through a connection member penetrating the through hole.

One side of the main PCB may be formed by extending the flexible circuit board, and the second connection part may be formed at one end of the flexible circuit board. In addition, the keypad PC may be made of stainless special use stainless steel (SUS).

Through holes are formed in the first connection part and the second connection part, and may include a separate connection member penetrating the through holes to connect the first connection part and the second connection part. In addition, the connecting member protrudes in one of the first connecting portion or the second connecting portion, and the through hole is formed in the other connecting portion so that the connecting member can penetrate.

The first connection part may be formed to protrude in a square shape on one side of the main PCB, and a first wiring part may be formed on one surface of the first connection part to transmit an electrical signal. The second connection part may be formed to protrude in a square shape on one side of the keypad PC, and a second wiring part may be formed on one surface of the second connection part corresponding to the first wiring part to transmit an electrical signal.

In addition, the terminal coupling method of the present invention is extended to the main PCB to provide a flexible circuit board having a first connection, the step of transmitting a push signal of the keypad and providing a keypad PC with a second connection; Forming at least one through hole in the first connection part or the second connection part, and providing a connection member penetrating the through hole formed in the connection part to electrically connect the main PC and the keypad PC. In addition, the step of electrically connecting the main PC and the keypad PC may further include the step of electrically fusion of the end of the connecting member through the through hole formed in the connecting portion.

In the present invention, a personal portable device (Personal Portable Device) is a portable electrical and electronic device such as a PDA (Personal Digital Assistant), smart phone (Smart phone), handheld PC, mobile phone, MP3 player, etc., CDMA (Code A predetermined communication module such as a Division Multiplexing Access module, a Bluetooth module, an infrared communication module (IrDA), a wired / wireless LAN card, etc., and a terminal having a predetermined computing power by mounting a predetermined microprocessor for performing a multimedia playback function Can be used as a generic concept.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. In addition, the overlapping content will not be described again to simplify the description of the invention.

First Example

Figure 4 is a side cross-sectional view showing a personal portable terminal according to the present invention. Referring to FIG. 4, the personal portable terminal 50 has an appearance formed as a housing 80, and a display 60 and a keypad 70 are formed on the front surface of the personal portable terminal 50. In the internal space of the personal portable terminal 50, a main PC 150 for controlling main devices such as a display 60 formed on the personal portable terminal 50 is formed, and the keypad (below) of the keypad 70 A keypad PC 100 for sensing the operation of 70 is formed.

One side of the main PCB 150 is a flexible printed circuit board 155 that is electrically connected to the keypad PC 100 is formed, the main PCB 150 and the keypad PC by the flexible circuit board 155 The 100 may combine and transmit and receive signals with each other.

5 is a plan view illustrating a main PC and keypad PC for explaining the terminal coupling structure of the personal portable terminal according to the first embodiment of the present invention. Referring to FIG. 5, a plurality of circuit components 130 may be formed on the upper surfaces of the main PC 150 and the keypad PC 100 in the present invention. The circuit components 130 are electrically connected to each other by the first wiring part 170 and the second wiring part 120 of a conductive material, and the first wiring part 170 and the second wiring part 120 are One or two or more may be formed from each of the circuit components 130.

One side of the flexible printed circuit board 155 and the keypad PC 100 is formed with a first connection part 160 and a second connection part 110, respectively. The first wiring part 170 formed from the circuit component 130 extends to the first connection part 160, and the second wiring part 120 extends to the second connection part 110.

FIG. 6 is a partially enlarged perspective view illustrating part VI of FIGS. 4 and 5. Referring to FIG. 6, a first connection unit 160 is formed at one side of the flexible circuit board 155, and a second connection unit 110 is formed at one side of the keypad PC 100.

One end of the first wiring part 170 is extended to the first connection part 160 to form a first ground point 172, and one end of the second wiring part 120 is extended to the second connection part 170. The second ground point 122 is formed.

An inner surface of the first ground point 172 and the second ground point 122 penetrates to form a first through hole 162 and a second through hole 112, respectively, and the first through hole 162. The first connection part 160 and the second connection part 110 may be coupled to each other by simultaneously passing the connection member 114 through the second through hole 112. In this case, the length of the connection member 114 may be determined according to the thicknesses of the first connection part 160 and the second connection part 110.

The method of combining the first connection part and the second connection part shown in FIG. 6 is as follows.

It extends to the main PC (not shown) and provides a flexible circuit board 155 having a first connection unit 160 and a keypad PC 100 that transmits a push signal of the keypad and is provided with a second connection unit 110. do. In this case, the first through hole 162 formed in the first ground point 172 and the second through hole 112 formed in the second ground point 122 overlap to form a concentric circle. The connecting member 114 is penetrated through the overlapped concentric circles of the first through hole 162 and the second through hole 112. The first connection part 160 and the second connection part 110 may be electrically fused to both ends of the connection member 114 remaining after passing through the first through hole 162 and the second through hole 112. Fix it to prevent movement.

2nd Example

7 is a partially enlarged perspective view illustrating the terminal coupling structure of the personal portable terminal according to the second embodiment of the present invention. For reference, the portion illustrated in FIG. 7 may correspond to the portion VI of FIGS. 4 and 5 as shown in FIG. 6.

Referring to FIG. 7, a first connection part 260 is formed at one side of the flexible circuit board 255, and a second connection part 210 is formed at one side of the keypad PC 200.

 One end of the first wiring part 270 extends in the first connection part 260 to form a first ground point 272, and one end of the second wiring part 220 extends in the second connection part 260. The second ground point 222 is formed.

The first ground point 272 is formed with a through hole 262 formed through the surface of the first ground point 272, the second ground point 222 is a protrusion that can penetrate the through hole 262 Shaped connecting member 212 is formed. In addition, the length of the connection member 212 may be determined in consideration of the thickness of the first connection portion (210).

A method of combining the first connection part and the second connection part shown in FIG. 7 is as follows.

It extends to the main PC (not shown) and provides a flexible printed circuit board 255 having a first connector 260 and a keypad PC 200 that transmits a push signal of the keypad and is provided with a second connector 210. do. In this case, the connection member 212 formed in the first connection part 260 and formed in the first ground point 272 and the second connection part 210 having the through hole 262 and penetrating the through hole 262 is formed. The second ground point 222 is formed to overlap each other to pass through the connecting member 212 through the through hole 262. In this case, the through hole 262 may accommodate part or all of the connection member 212. The end of the connecting member 212 remaining after passing through the through hole 262 is electrically fused to fix the first connecting portion 260 and the second connecting portion 210 so as not to move.

The third Example

8 is a partially enlarged perspective view illustrating a terminal coupling structure of a personal portable terminal according to a third embodiment of the present invention. For reference, the portion illustrated in FIG. 8 may correspond to the portion VI of FIGS. 4 and 5 as shown in FIG. 6.

Referring to FIG. 8, a first connection portion 360 is formed at one side of the flexible circuit board 355, and a second connection portion 310 is formed at one side of the keypad PC 300.

One end of the first wire part 370 extends to the first connection part 360 to form a first ground point 372, and one end of the second wire part 320 extends to the second connection part 310. 2 ground points 322 are formed.

A protruding connection member 362 is formed at the first ground point 372, and a through hole 312 is formed at the second ground point 322 to accommodate a part or the entirety of the connection member 362. do. In addition, the length of the connection member 362 may be determined in consideration of the thickness of the second connection portion 360.

The method of combining the first connection part and the second connection part shown in FIG. 8 is as follows.

The keypad PC 300 is formed to extend in the main PC (not shown) to transmit the push signal of the keypad and the flexible circuit board 355 provided with the first connection part 360 and the second connection part 310. to provide. In this case, a second ground point 322 formed in the first connection part 360 and formed in the first ground point 372 having the connection member 362 and the second connection part 310, and having a through hole 312 formed therein. ) Overlap each other to allow the connection member 362 to pass through the through hole 312. Here, the through hole 312 may accommodate a part or the whole of the connection member 362. The end of the connecting member 362 remaining after passing through the through hole 312 is electrically fused to fix the first connecting portion 360 and the second connecting portion 310 so as not to move.

In this way, by connecting the connecting member and the connection hole formed with the through hole overlapping each other to electrically connect the main PC and the keypad PC, it is possible to increase the connection strength of the connection portion and improve the electrical good holding force. Due to the simple coupling structure, it is easy to produce and combine and reduce production cost.

Therefore, it has the effect of increasing the connection strength of the connection portion formed on the flexible circuit board and the keypad PC.

In addition, it has an effect of improving the contact holding force of the connection portion formed on the flexible circuit board and the keypad PC.

In addition, it is easy to manufacture and join parts by simplifying the terminal coupling, and has the effect of reducing the production cost.

As described above, although described with reference to the preferred embodiments of the present invention, those skilled in the art various modifications and variations of the present invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

Claims (16)

A main PC with a first connector; And A keypad PC that transmits a push signal of the keypad and has a second connection portion; And a through hole provided in at least one of the first connection part and the second connection part, wherein the main PC and the keypad PC are electrically connected to each other through a connection member penetrating the through hole. Terminal coupling structure. The method of claim 1, The main PC is a terminal coupling structure of the personal portable terminal, characterized in that the flexible printed circuit board is extended, the second connecting portion is formed on the flexible printed circuit board. The method of claim 1, The through hole is formed in each of the first connecting portion and the second connecting portion, the connecting member is formed as a separate member, the terminal coupling structure of the personal portable terminal, characterized in that through the through hole connected. The method of claim 1, The connecting member protrudes from one of the first connecting portion or the second connecting portion, and the other one connecting portion terminal coupling structure of the personal portable terminal, characterized in that the through hole is formed. The method of claim 1, The keypad PC is a terminal coupling structure of the personal portable terminal, characterized in that made of SUS (Steel Special Use Stainless). The method of claim 1, The first connector is formed to protrude in a rectangular shape on one side of the main PCB, a first wiring portion for transmitting an electrical signal is formed on one surface of the first connector, The second connector is formed to protrude in a square shape on one side of the keypad PC, and a second wiring portion for transmitting an electrical signal is formed on one surface of the second connection portion corresponding to the first wiring portion. Terminal coupling structure of the terminal. Main PCB; A flexible circuit board connected to the main PC and having a first connection portion at one end thereof; And A keypad PC that transmits a push signal of the keypad and has a second connection portion; And the main PC and the keypad PC being electrically connected to each other through a first through hole and a second through hole formed in the first connection part and the second connection part, respectively. Terminal coupling structure. The method of claim 7, wherein The first connector is formed to protrude in a rectangular shape on one side of the flexible circuit board, a first wiring portion for transmitting an electrical signal is formed on one surface of the first connector, The second connector is formed to protrude in a square shape on one side of the keypad PC, and a second wiring portion for transmitting an electrical signal is formed on one surface of the second connection portion corresponding to the first wiring portion. Terminal coupling structure of the terminal.  The method of claim 7, wherein The keypad PC is a terminal coupling structure of a personal terminal, characterized in that formed of a material of SUS (Steel Special Use Stainless). Main PCB; A flexible circuit board connected to the main PC and having a first connection portion at one end thereof; And A keypad PC that transmits a push signal of the keypad and has a second connection portion; It includes, and forming a connection member protruding in one of the first connection portion or the second connection portion and the other connection portion is formed through holes through which the connection member penetrates that the main PC and the keypad PC is electrically connected The terminal coupling structure of the personal portable terminal. The method of claim 10, The first connection portion On one side of the flexible circuit board protruding in a rectangular shape, one surface of the first connection portion is formed with a first wiring portion for transmitting an electrical signal, The second connection portion The terminal coupling structure of the personal portable terminal, wherein the keypad PC is formed to protrude in a square shape, and a second wiring portion for transmitting an electrical signal is formed on one surface of the second connection portion corresponding to the first wiring portion. . The method of claim 10, The keypad PC is a terminal coupling structure of a personal terminal, characterized in that formed of a material of SUS (Steel Special Use Stainless). Providing a flexible circuit board having an extended first main portion and having a first connection portion; Delivering a keypad signal and providing a keypad PC with a second connection; And Forming at least one through hole in the first connection part or the second connection part and providing a connection member penetrating the through hole to electrically connect the main PCB and the keypad PCB; Terminal coupling method of the personal portable terminal comprising a. The method of claim 13, The electrically connecting the main PC and the keypad PC may include coupling the main PC and the keypad PC through a connecting member penetrating the first through hole and the second through hole respectively formed in the first connection part and the second connection part. Terminal coupling method of the personal mobile terminal further comprising a step. The method of claim 13, The electrically connecting the main PC and the keypad PC may include a connection member protruding from one of the first connection portion and the second connection portion, and a through hole through which the connection member penetrates through the other connection portion. And combining the keypad PC with the terminal. The method of claim 13, The step of electrically connecting the main PC and the keypad PC further comprises the step of electrically fusion of the end of the connecting member penetrating the through hole further comprising the terminal.

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