KR200369496Y1 - Fixing device of flexible printed circuit board for mobile phone - Google Patents

Abstract

The present invention relates to a flexible circuit fixing device of a portable terminal comprising a rotating fixing unit for fixing or releasing a flexible circuit (FPCB) electrically connected to the connector of the portable terminal according to the rotation, for this purpose on a printed circuit board A portable terminal comprising a flexible circuit electrically connected to a provided connector, the portable terminal comprising: at least one support member provided on the printed circuit board, and rotatably connected to the support member and rotating about a hinge axis. It is characterized in that it consists of a rotating fixed portion for pressing or fixing the flexible circuit by pressing, thereby facilitating the assembly process of the flexible circuit (FPCB) and the connector of the terminal as well as improving the fixing force after the assembly process. There is an advantage to that.

Description

FIXING DEVICE OF FLEXIBLE PRINTED CIRCUIT BOARD FOR MOBILE PHONE}

The present invention relates to a flexible circuit fixing device of a mobile terminal, and more particularly, to a flexible circuit fixing device of a mobile terminal comprising a rotary fixing unit for fixing or releasing a flexible circuit electrically connected to a connector of the mobile terminal according to rotation. It is about.

In general, the term “portable communication device” refers to a device that a user can carry and perform wireless communication with a counterpart. Such portable communication devices are referred to as HHP, CT-2 cellular phones, digital phones, PCS phones and PDAs, and are classified into various types in appearance. For example, wireless terminals are classified into bar-type, flip-type, or folder-type wireless terminals according to their appearance. Bar-type wireless terminal means that a single housing is configured as a bar-type, flip-type wireless terminal means that the flip or cover is rotatably configured by a hinge device in the bar-type housing, folder-type wireless The terminal means that the folder is configured to be rotatably connected to the single bar-type housing by a hinge device and to be folded.

In addition, the wireless terminal may be classified into a rotation-type or sliding-type wireless terminal according to the opening and closing method. Rotation-type wireless terminal means that the two housings are face-to-face rotatably connected to open and close, sliding-type wireless terminal is one of the two housings, one of the housing facing the longitudinal sliding movement state It means to open and close. The variously classified wireless terminals listed above will be readily understood by those of ordinary skill in the art. Meanwhile, the above-mentioned conventional portable terminals are essentially provided with an antenna device, a data input / output device, and a data transmission / reception device. Of course, the data input device is commonly used as a keypad for inputting data mainly by a finger pressing operation, a touch pad or a touch screen is also used.

In addition, the data display function according to the data output device uses a liquid crystal display (LCD) universally.

In addition, in the conventional portable communication device for a video call, the photographing means includes a camera lens, through which a video call with the other party or a desired subject can be taken.

Here, referring to FIG. 1, the sliding type wireless terminal 10 is described as an example among the various types of wireless terminals.

The sliding type wireless terminal 10 is a form in which the sliding housing 30 is opened by sliding a predetermined length in the longitudinal direction of the terminal on a predetermined body housing 20, and the user's changing variety compared to the existing folder type terminal. It has the advantage of being able to respond to preferences.

As illustrated in FIG. 1, the sliding type wireless terminal 10 has a body housing 20 and a slide housing 30 having a length equal to or greater than a length of the body housing 20 when viewed based on the body housing 20. A slide housing 30 which is slid to the lower side or an upper side to open up to about 2 degrees, a sliding keypad 31 on the front surface of the sliding housing 30, a liquid crystal display (LCD) 32 and a speaker device having a display function ( 33 may be installed, and a 3x4 main body keypad 21 and a microphone device 22 are provided on the front of the main body housing 20.

2 to 5, the sliding type wireless terminal includes a printed circuit board (PCB) 24 housed in the body housing 20, and a liquid crystal display (LCD) inside the slide housing 30. A printed circuit board (PCB) 34 is mounted.

As shown in FIGS. 3 to 5, the flexible flexible circuit 40 (FPCB) in which a fine circuit is printed on a thin sheet of flexible plastic as an electrical connection means for electrically connecting each of the printed circuit boards 24 and 34. Flexible Printed Circuit Board) and connector 50 are used.

Both ends of the flexible circuit 40 are provided with circuit-side connectors 41 that are electrically connected to the connectors provided on the printed circuit boards 24 and 34, respectively, on the respective connectors 50. By connecting the circuit side connector 41, various signal transmissions are made.

3 to 5, the connector 50 is provided with a plurality of pins (not shown) for electrically connecting, and the pin and the circuit-side connector 41 of the flexible circuit 40 is fastened. In this case, an opening 51 is formed in the connector 50 so that the circuit-side connector 41 can be inserted therein, and the opening 51 is provided with a cover 52 for preventing the entry of the substance.

However, the conventional flexible circuit of the wireless terminal has a structure in which the connector of the flexible circuit is inserted into the opening of the connector in a sliding manner and fastened with the pin, so that the flexible circuit is difficult to be assembled into the opening of the connector. .

In addition, after the connector of the flexible circuit is fastened to the pin of the connector, the terminal is easily detached from the shock due to the rotation or sliding movement of the terminal, thereby failing to maintain the electrical connection state of the terminal, thereby reducing the reliability of the connector.

Accordingly, the present invention is to solve the conventional problems as described above, an object of the present invention, by configuring a rotation type fixing portion for fixing or releasing a flexible circuit electrically connected to the connector of the portable terminal according to the rotation. Another aspect of the present invention is to provide a flexible circuit fixing device for a portable terminal, which can improve the fixing force between the terminal connector and the flexible circuit (FPCB).

Another object of the present invention is to configure the rotary fixing part for fixing or releasing the flexible circuit electrically connected to the connector of the portable terminal according to the rotation, so as to facilitate the assembly process of the connector and the flexible circuit of the terminal. It is to provide a flexible circuit fixing device of a portable terminal.

In order to achieve the above object, the present invention is a portable terminal comprising a flexible circuit electrically connected to a connector provided on a printed circuit board,

At least one support member provided on the printed circuit board; And

It is rotatably connected to the support member, characterized in that it consists of a rotatable fixing portion for pressing or fixing or releasing the flexible circuit as it rotates around a hinge axis.

1 is a perspective view of a conventional sliding type portable terminal,

2 is a perspective view showing a connector provided on a printed circuit board of a conventional sliding type portable terminal;

3 is an enlarged perspective view illustrating a state before connection of a connector and a flexible circuit of a conventional sliding type portable terminal;

4 is an enlarged perspective view illustrating a process of connecting a connector and a flexible circuit of a conventional sliding type portable terminal;

5 is an enlarged perspective view illustrating a state after connecting a connector and a flexible circuit of a conventional sliding type portable terminal;

6 is an exploded perspective view showing the configuration of a flexible circuit fixing device of a mobile terminal according to an embodiment of the present invention;

7 is a perspective view illustrating a coupling state of a flexible circuit fixing device of a portable terminal according to an embodiment of the present invention;

8 is a perspective view illustrating a state in which a rotatable fixing unit is rotated in a configuration of a flexible circuit fixing apparatus of a portable terminal according to an embodiment of the present invention;

9 is a perspective view showing a state in which the rotatable fixed part and the flexible circuit are electrically connected in the configuration of the flexible circuit fixing device of the mobile terminal according to an embodiment of the present invention;

10 is a side cross-sectional view showing an operating state of the locking device of the flexible circuit fixing device of the portable terminal according to an embodiment of the present invention;

Hereinafter, with reference to the accompanying drawings will be described in detail the most preferred embodiment of the present invention. In addition, it should be noted that the same reference numerals denote the same functions as the conventional functions among the components.

As shown in FIG. 6, the mobile terminal 10 includes a main body housing 20, a sliding housing 30, connectors 50 provided on printed circuit boards 24 and 34 (PCB), and the flexible connection. A circuit side connector 41 provided in the circuit 40 (FPCB), at least one support member 100, and a rotatable fixing part 200, and the circuit side connector of the flexible circuit 40 ( 41 is fastened in a vertical direction to the top surface of the connector 50 on the printed circuit board 24 (34).

The printed circuit boards 24 and 34 are respectively embedded in the main housing 20 and the sliding housing 30. The flexible circuit 40 is configured to electrically connect each of the printed circuit boards 24 and 34, and each of the support members 100 is rotatably connected to the rotatable fixing part 200. Is provided so as to extend in the longitudinal direction on the printed circuit board 24, 34, the rotatable fixed part 200 is rotated about the hinge axis (A1) of the hinge device 400 to be described later Therefore, the circuit-side connector 41 of the flexible circuit 40 is rotatably connected between the respective support members 100 so as to be pressed or fixed.

Here, the circuit-side connector 41 of the flexible circuit 40 is fastened in the vertical direction to the upper end surface of the connector 50 on the printed circuit board 24, 34.

In addition, as shown in FIGS. 9 and 10, the rotary type fixing part 200 is pressed by the circuit-side connector 41 of the flexible circuit 40 as well as being caught or pushed by the support member 100 as it rotates. Locking device 300 is configured to release the lock, the locking device 300 is composed of a hook portion 301 and a locker portion 302, the hook portion 301 is the rotatable fixed portion The locker 302 is formed at the center of the second plate 102 of the support member 100 so as to be locked or separated from the locker 302 as the rotation of the 200 is performed. It is formed at one end of the rotatable fixing part 200 so as to be caught or fixed by the hanger 301 in accordance with the rotation of the rotatable fixing part 200.

In addition, as shown in FIGS. 6 and 7, each of the supporting members 100 includes first and second plates 101 and 102 so as to extend in the longitudinal direction, and the first and second plates 101 and 102. ) Are provided on both sides of the connector 50 on the printed circuit boards 24 and 34.

The hinge shaft A1 is provided at a central portion of the first plate 101 and one end of the rotatable fixing part 200, and the first plate 101 and the rotatable fixing part 200 are rotatably connected to each other. The hinge device 400 is configured to be.

6 and 8, the hinge device 400 includes a center hinge arm 401, a pair of side hinge arms 402, and a hinge pin 403, and the center hinge arm 401 is provided. It is formed at one end of the rotatable fixed portion 200 to be coupled and rotated between the pair of side hinge arms 402, the pair of side hinge arms 402 is coupled to the center hinge arm 401 The hinge pin 403 is formed at one end of the first plate 101 so as to be in contact with each other, and the center hinge arm 401 and the side hinge arm 402 are rotatably deformed with each other. Is to be inserted into the hinge arms 401 and 402.

In addition, as shown in Figure 10, the rotatable fixing part 200 is made of a plate shape having an elastic force, made of a metal material, the rotatable fixing part 200, the circuit-side connector of the flexible circuit 40 ( At least one pressing unit 201 is formed to protrude to press the upper surface of the 41.

6 and 7, at least one fastening hole 101a and 102a is formed in the support member 100 to be fastened and fixed to the printed circuit boards 24 and 34.

Referring to Figures 6 to 10 attached to the operation of the flexible circuit fixing device of the portable terminal according to an embodiment of the present invention having the configuration as described above in detail as follows.

6 and 7, in order to connect the flexible circuit 40 to the portable terminal 10, at least one support member 100 is placed on the printed circuit boards 24 and 34 of the terminal 10. It is provided in the longitudinal direction of the printed circuit boards 24 and 34.

At this time, since the support member 100 is composed of the first and second plates 101 and 102, the support member 100 uses the fastening holes 101a and 102a formed in the first and second plates 101 and 102. It is fixed by screwing (not shown) onto the printed circuit boards 24 and 34.

In this case, the first and second plates 101 and 102 are provided on both side surfaces of the connector 50 provided on the printed circuit boards 24 and 34.

In this state, as shown in FIGS. 8 and 10, the first plate 101 and the rotatable fixing part 200 are rotated at the center of the first plate 101 and one end of the rotatable fixing part 200. Since the hinge device 400 is provided to enable the connection, the rotatable fixing part 200 is rotatably connected to the first plate 101 by the hinge device 400.

As shown in FIG. 6, the first plate 101 is provided with a pair of side hinge arms 402 to be engaged with each other so as to be coupled to the center hinge arm 401 formed at the center of the rotatable fixing part 200.

A hinge pin 403 is inserted into the center hinge arm 401 and the side hinge arm 402 to be rotatable.

The circuit-side connector 41 of the flexible circuit 40 is fastened to the connector 50 provided between the first and second plates 101 and 102.

At this time, the rotary fixing part 200 for pressing or fixing or releasing the flexible circuit 40 as it rotates about the hinge axis A1 of the hinge device 400 on the upper surface of the circuit-side connector 41. ).

In this state, as shown in FIGS. 8 and 10, when the rotatable fixing part 200 is rotated about the hinge axis A1 of the hinge device 400, the hook part formed on the second plate 102 is formed. A locker part 302 formed at one end of the rotatable fixing part 200 is fitted into the 301 to be hooked to fix the rotatable fixing part 200.

At this time, the rotatable fixing part 200 fixes the flexible circuit 40 while pressing the upper end surface of the circuit side connector 41 of the flexible circuit 40.

In this case, as shown in FIG. 10, since the at least one pressurizing part 201 for pressing the upper end surface of the circuit-side connector 41 protrudes from the rotatable fixing part 200, the rotatable fixing part 200. While rotating, the pressing unit 201 fixes the circuit side connector 41 while pressing.

Here, as shown in Figure 10, when separating the flexible circuit 40 and the rotational fixing part 200 by pushing the locker unit 302 of the rotary fixing part 200 using a user's hand, the The rotatable fixing part 200 is bent by the elastic force and is separated from the hook part 301.

The rotatable fixing part 200 is formed in a plate shape having an elastic force.

In this case, as shown in FIG. 8, the rotatable fixing part 200 is rotated about the hinge axis A1 of the hinge device 400 to be separated from the circuit-side connector 41 of the flexible circuit 40.

As described above, by configuring a rotational fixing portion for fixing or releasing the flexible circuit electrically connected to the connector of the portable terminal in accordance with the rotation, not only improves the connection between the connector and the flexible circuit, but also facilitates connection and disconnection of the product. The assembly process time can be shortened.

The flexible circuit fixing device of the portable terminal of the present invention described above is not limited to the above-described embodiments and drawings, and various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those of ordinary skill in the art.

For example, the present invention can be applied to all portable terminals.

As described above, according to the flexible circuit fixing apparatus of the mobile terminal according to the present invention,

By constructing a rotatable fixing portion for fixing or releasing the flexible circuit electrically connected to the connector of the portable terminal according to the rotation, it is easy to connect and disconnect the connector of the terminal and the flexible circuit to shorten the assembly process time of the product. And it is possible to improve the reliability of the electrical connection between the connector and the flexible circuit by preventing the separation of the connector due to the impact applied to the terminal by increasing the fixing force of the connector and the flexible circuit (FPCB) of the terminal.

Claims (10)

A portable terminal comprising a flexible circuit electrically connected to a connector provided on a printed circuit board, At least one support member provided on the printed circuit board; And And a rotatable fixing portion rotatably connected to the support member and configured to press and fix or release the flexible circuit as it rotates about a hinge axis. The portable terminal of claim 1, wherein the rotatable fixing part comprises a locking device for pressing the flexible circuit and releasing the latch by pushing or pushing the flexible member as the fixing part rotates. Flexible circuit holding device. The apparatus of claim 1, wherein the support member comprises first and second plates extending in the longitudinal direction, and the first and second plates are provided at both sides of the connector. . According to claim 1 or claim 3, characterized in that the central portion of the first plate and one end of the rotatable fixed portion is provided with a hinge device for providing the hinge axis, rotatably connecting the plate and the fixed portion. Flexible circuit fixing device for portable terminals. The hinge device according to claim 4, wherein the hinge device comprises: a center hinge arm formed at the center of the rotatable fixed part; A pair of side hinge arms formed on said first plate and provided to mate with each other to engage with said center hinge arm, And a hinge pin inserted into the center hinge arm and the side hinge arm. According to claim 2, The locking device is a hook portion formed in the center of the second plate, And a locker part formed at one end of the rotatable fixing part to be locked or pushed to the hook part according to the rotation of the fixing part to form a locker part. The flexible circuit fixing device of claim 1, wherein the rotatable fixing part is formed in a plate shape having elasticity and is made of a metal material. The flexible circuit fixing apparatus of claim 1, wherein at least one pressing unit for pressing the top surface of the flexible circuit is protruded from the rotatable fixing unit. The flexible circuit fixing apparatus of claim 1, wherein at least one fastening hole is further formed in the support member to be fastened and fixed on the printed circuit board. 2. The flexible circuit fixing device of claim 1, wherein the flexible circuit is fastened in a vertical direction to an upper end surface of the connector on the printed circuit board.