KR20060056023A - Mobile phone - Google Patents

Abstract

The present invention relates to a mobile communication terminal provided with a keypad including a numeric button and a first function button on the front and the first and second switches corresponding to the number button and the first function button in the inner space consisting of upper and lower cases A mobile communication terminal in which a folder is pivotally connected by a hinge portion to a main body on which a printed circuit board is formed, the second function corresponding to the first function button on the side of the main body and slid up and down across upper and lower cases. A button, a support vertically installed between the second function button and the second switch on the printed circuit board, one side of the second function button is connected, and an upper side of the second switch is in contact with the other side, and an intermediate portion of the support The connection further includes a push bar that acts like a seesaw. Therefore, it is possible to switch the mobile communication terminal to a manner function or a lock function by operating the second function button from the outside without opening a folder, thereby improving convenience.

Mobile terminal, clamshell, function button, push bar, switch

Description

Mobile phone terminal

1 is a perspective view of a mobile communication terminal according to the prior art.

2 is a cross-sectional view taken along the line a-a of the main body of FIG.

3 is a perspective view of a mobile communication terminal according to the present invention;

4 is a cross-sectional view of the main body of FIG. 3 taken along line b-b.

Explanation of symbols on the main parts of the drawings

51: body 53: folder

55: Display 57: Speaker

59: hinge portion 61: keypad

62: numeric buttons 63, 65: first and second function buttons

67: microphone 69, 71: upper and lower cases

73: pressing projection 75: light emitting portion

77: printed circuit board 79: contact

80: metal dome 82a, 82b: first and second switch

83: push bar 85: support

The present invention relates to a mobile communication terminal, and more particularly, to a mobile communication terminal capable of operating a function key externally without opening a folder in a folder type.

In recent years, the use of mobile communication terminals has increased day by day, and are used as necessities regardless of age or gender. Due to the development of technology, the mobile communication terminal goes beyond providing a simple voice information service to a user, and provides a wireless Internet service as well as text information, image information, a video call, and a game.

Mobile communication terminals are classified into a bar type, a flip type, a folder type, and a slide type according to their external structure. Among them, the clamshell mobile communication terminal is small in size and light in weight, making it easy to carry.

The folder-type mobile communication terminal is pivotally connected by a hinge to a folder on which a display screen and a speaker are installed on a main body on which a keypad and a microphone are installed, and are coupled to be opened and closed. As the display screen, a liquid crystal display (hereinafter referred to as LCD) is used. The LCD is installed on the inner surface of the folder and is not exposed to the outside in the closed state. Damage is prevented.

In addition, the use of dual LCD clamshell mobile communication terminal provided with an auxiliary display screen made of LCD or the like on the outer surface of the folder is increasing. The auxiliary display screen displays information such as electric field strength, battery level, time and date when the mobile communication terminal is in a standby state, and provides the user with the information.

1 is a perspective view of a mobile communication terminal according to the prior art.

The mobile communication terminal according to the related art is hinged by the hinge unit 19 so that the main body 11 and the folder 13 can be rotated, each of which is open when the terminal is used, and the front of the mobile terminal is exposed and the back is closed when waiting.

The main body 11 is provided with a keypad 21 composed of a plurality of buttons for inputting a key signal in front and a microphone 27 for converting a user's voice into a voice signal and transmitting the same to another communication terminal. The keypad 21 is composed of a number button 22 and a function button 23, etc., the function button 23 is a '#' button to switch the mobile terminal to the manner function and '#' to switch to the lock function 'Button.

The folder 13 converts and outputs a voice signal received from another mobile communication terminal and a display screen 15 formed of a display device such as a liquid crystal display (hereinafter referred to as an LCD) on the front. The speaker 17 is installed.

2 is a cross-sectional view taken along the line a-a of the main body 11 of FIG.

The main body 11 includes a keypad 21 and a switch 42 including a numeric button 22 and a function button 23 exposed to the outside in an internal space formed by the upper case 29 and the lower case 31. Has a printed circuit board 31 formed thereon.

In the above, the number button 22 and the function button 23 are elastic and include a push protrusion 33 and a light-transmitting part 35. In addition, the switch 20 is located in correspondence with the number button 22 and the function button 23 to sense the pressing and the contact 39 formed on the printed circuit board 31 and the metal covering the contact 39. It is made up of a dome 41. When the number button 22 and the function button 23 are selectively pressed by the user, the pressing protrusion 33 formed to protrude to the lower side presses the metal dome 41 of the corresponding switch 42, and in conjunction with the metal When the dome 41 comes into contact with the contact 39, a key signal is generated and input.

In addition, an optical device (not shown) such as a light emitting device (LED) that emits light when the surroundings are dark is installed on the printed circuit board 31, and the light emitted from the optical device is externally transmitted through the light transmitting part 35. Without leaking, it is possible to check the key information of the numeric button 22 and the function button 23 without a separate light.

The mobile communication terminal having the above-described configuration sequentially presses the corresponding number of number buttons 22 several times in sequence when calling the communication terminal while the folder 13 is opened. When the terminal is switched to the manner function or the lock function, the corresponding button among the function buttons 23 consisting of the '*' button and the '#' button is selectively pressed. In case of calling the counterpart communication terminal by pressing the number button 22, it is necessary to open the folder 13 because the counterpart needs to make a call. In addition, by pressing and holding any one of the function buttons 23, the mobile terminal is switched to manner mode or lock function, and the folder 13 is closed.

However, the mobile communication terminal according to the related art has an inconvenience of having to open a folder simply by pressing a function button when switching to a manner function or a lock function.

Accordingly, an object of the present invention is to provide a mobile communication terminal which can conveniently set a desired function by operating a function button from the outside without opening a folder.

The mobile communication terminal according to the present invention for achieving the above object is provided with a keypad including a numeric button and a first function button and the first and corresponding to the number button and the first function button in the inner space consisting of upper and lower cases; A mobile communication terminal pivotally connected to a main body provided with a printed circuit board having a second switch, comprising: a second function button corresponding to the first function button on a side of the main body and slid up and down across upper and lower cases; A support vertically installed between the second function button and the second switch on the printed circuit board; one side of the second function button is connected; an upper portion of the second switch is in contact with the other side; and an intermediate portion of the support is connected. It further includes a push bar that acts like a seesaw.

When the second function button is slid upward, the other side of the push bar presses the second switch to generate a key signal.

The second function button is returned to its original position by the restoring force of the second switch when the applied force is removed.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a perspective view of a mobile communication terminal according to the present invention, and FIG. 4 is a cross-sectional view of the main body 41 of FIG. 3 taken along line b-b.

Mobile communication terminal according to the present invention has a configuration that is hinged by the hinge portion 59 so that the main body 51 and the folder 53 can be rotated.

The main body 51 is provided with a keypad 61, a second function button 65, and a microphone 67 made of a number button 62, a first function button 63, and the like on the front, and upper and lower cases. The first and second switches 82a and 82b, the push bar 83, and the printed circuit board 77, the contact 79, and the metal dome 81, which are formed in the space formed by the 69 and 71. Support 85 is installed. In addition, the numeric button 62 and the first function button 63 include a push protrusion 73 and a light projecting portion 75 formed at a lower portion thereof.

The folder 53 is provided with a display screen 55 made of a display device such as an LCD on the front and a speaker 57 for converting and outputting a voice signal received from another mobile communication terminal into voice.

In the above, the keypad 61 is installed on the front of the main body 51 and has a plurality of buttons for inputting a key signal by being elastic and pressed, that is, a number button 62 and a first function button 63. Is done. In addition, the first function button 63 is composed of a '*' button to switch the mobile communication terminal to the manner function and a '#' button to switch to the lock function.

The microphone 67 is installed in front of the main body 51 and converts a user's voice into a voice signal and transmits it to another communication terminal.

The second function button 65 is formed on the side surface of the main body 51 to correspond to the first function button 63. Like the first function button 63, the second function button 65 is composed of a '*' button for switching the mobile communication terminal to a manner function and a '#' button for switching to the lock function. In addition, the second function button 65 is operated while sliding up and down over the upper and lower cases 69 and 71 and may be operated while the folder 53 is closed.

The printed circuit board 77 is embedded in the lower portion of the internal space formed by the upper case 69 and the lower case 71.

The contact 79 and the metal dome 81 constituting the first and second switches 82a and 82b are formed of a conductive metal on the printed circuit board 77, and the metal dome 81 contacts the contact 79. It is formed to cover. In the above description, the first and second switches 82a and 82b are formed to correspond to the number button 62 and the first function button 63 which form the keypad 61, and the number buttons 62 and the first function. When the button 63 or the like is selectively pressed by the user, the pressing protrusion 73 formed to protrude to the lower side presses the metal dome 81 of the corresponding one of the first and second switches 82a and 82b, and interlocks thereto. The metal dome 81 is in contact with the contact 79 and electrically connected to generate a key signal.

One side of the push bar 83 is connected to the second function button 65 and the other side contacts the metal dome 81 constituting the second switch 82b. And, the support 85 is installed vertically between the second function button 65 and the second switch 82b on the printed circuit board 71 and presses so that the push bar 83 is operated like a seesaw. The middle part of the rod 83 is connected at the top. Therefore, when the folder 53 is closed and a force is applied to selectively slide the second function button 65 to the upper side, the other side of the push bar 83 opens the metal dome 81 constituting the second switch 82b. Press to contact with the contact 79. When the force applied to the second function button 65 is removed, the push bar 83 and the second function button 65 are returned to their original positions by the restoring force of the metal dome 81.

In addition, the light transmitting unit 75 is installed on the printed circuit board 71 to allow the light emitted from an optical device (not shown) such as a light emitting device (LED) to leak outside when the surroundings are dark. Therefore, the user can visually check the key information of the numeric button 62 and the first function button 63 when there is no separate lighting when the surroundings are dark.

The mobile communication terminal having the above-described configuration sequentially presses the number corresponding to the number among the number buttons 62 in the state of opening the folder 53 when calling the counterpart communication terminal. In addition, while the user opens the folder 53, the user may selectively press a corresponding button among the first function buttons 63 to switch the mobile communication terminal to a manner function or a lock function.

In addition, while the folder 53 is closed, the user may selectively slide the second function button 65 upward to convert the mobile communication terminal into a manner function or a lock function. By selectively sliding the second function button 65 in the above, the other side of the pressing bar 83 by the support 85 presses the metal dome 81 constituting the second switch 82b, whereby, The metal dome 81 contacts the contact 79 to convert the mobile communication terminal into a manner function or a lock function. The mobile communication terminal can be conveniently switched to a manner function or a lock function by selectively sliding the second function button 65 installed to be exposed to the outside while the folder 53 is closed.

As described above, in the mobile communication terminal according to the present invention, the folder is closed by installing the second function button corresponding to the first function button on the side of the main body separately from the first function button constituting the keypad installed on the front of the main body. In this state, the mobile communication terminal can be switched to a manner function or a lock function.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the art without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.

Therefore, the present invention has the advantage that it is possible to switch the mobile communication terminal to a manner function or a lock function by operating the second function button from the outside without opening a folder, thereby improving convenience.

Claims (3)

A main body having a keypad including a number button and a first function button installed therein and a printed circuit board having first and second switches corresponding to the number button and the first function button installed in an inner space formed of upper and lower cases; In the mobile communication terminal, A second function button corresponding to the first function button on the main body side, and installed to slide up and down over upper and lower cases; A support vertically installed between the second function button and the second switch on the printed circuit board; And a push bar connected to one side of the second function button, the other side of the second switch to be in contact with the other side, and an intermediate part connected to the support, which acts as a seesaw. The mobile communication terminal of claim 1, wherein when the second function button is slid upward, the other side of the push bar presses the second switch to generate a key signal. The mobile communication terminal of claim 2, wherein the second function button is returned to its original position by a restoring force of the second switch when the applied force is removed.

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