KR100548610B1 - Mobile terminal with stylus pen antenna - Google Patents

Abstract

The present invention provides a touch screen type mobile communication terminal having an antenna device configured to insert and withdraw a monopole antenna into a helical antenna coupled to a main body, wherein the monopole antenna has a lower portion to input a signal by pressing a touch screen. Is formed sharply and is drawn out from the helical antenna and can be separated independently. Even though the monopole antenna is pulled out of the main body for use as a stylus pen, the helical antenna is fixed to the main body to maintain a certain level of propagation. Provided is a mobile communication terminal equipped with a stylus pen antenna for maintaining a reception rate.

Mobile terminal, touch screen, monopole antenna, helical antenna, drawout

Description

Mobile communication terminal having stylus pen antenna {Mobile communication terminal having combination stylus pen and antenna}

Figure 1a is a partial cross-sectional view of a mobile communication terminal equipped with a conventional stylus pen antenna device.

Figure 1b is another embodiment of a mobile communication terminal equipped with a conventional stylus pen antenna device.

2 is a perspective view of a mobile communication terminal equipped with a stylus pen antenna according to the present invention in which a monopole antenna is separated.

3A illustrates a coupling structure of a monopole antenna using a fixing pin.

FIG. 3B illustrates a shape in which the monopole antenna is drawn out in the state of FIG. 3A.

4A illustrates a coupling structure of a monopole antenna using screw coupling.

FIG. 4B illustrates a shape in which the monopole antenna is drawn out in the state of FIG. 4A.

5A illustrates a coupling structure of a monopole antenna using a leaf spring.

FIG. 5B illustrates a shape in which the monopole antenna is drawn out in the state of FIG. 5A.

6A illustrates a coupling structure of a monopole antenna using a screw coupling structure.

FIG. 6B illustrates a shape in which the monopole antenna is drawn out in the state of FIG. 6A.

Explanation of symbols on the main parts of the drawings

100: upper folder 110: earpiece

120: touch screen 200: lower folder

210: keypad 220: transmitter

300: antenna device 310: helical antenna

312: outlet 314: fixing pin hole

316: seat spring seating groove 320: fixing pin

330: stopper 332: female thread

340: stopper fixing hole 350: monopole antenna

360: fixing groove 370: male thread

380: leaf spring

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication terminal using a touch screen LCD module, and in particular, a mobile communication configured to be used in combination with an antenna device in order to facilitate manipulation of a touch screen. It relates to a stylus pen combined antenna device of the terminal.

Recently, as mobile communication terminals become more and more popular, terminals having various functions and designs have appeared. In addition, as terminals become smaller and lighter and shorter, a variety of functions are being highlighted. Therefore, in addition to the basic functions for transmitting and receiving voice with the other party, the mobile communication terminal is required to process Internet functions, text information, graphics, and the like. Accordingly, an LCD module (Display Unit) is gradually widened, while the volume of the terminal can be reduced to meet the needs of consumers only when the size of the terminal is gradually reduced to use a touch screen without a separate keypad. In addition, due to the characteristics of the product, an auxiliary mechanism for manipulating the touch screen may be used. The auxiliary device may have a writing instrument shape, and a stylus having a sharp end may be used, and the stylus is carried by the user separately or fixed to a part of the terminal body.

Hereinafter, a conventional stylus pen combined antenna device will be described with reference to the accompanying drawings.

FIG. 1A is a partial cross-sectional view of a mobile communication terminal equipped with a conventional stylus pen antenna device, and the stylus pen is provided in the antenna device 30 installed on the housing 10 of the terminal body. The antenna device 30 is a sunken antenna device, and is composed of a helical antenna 31 fixed to a main body and a monopole antenna 32 which is inserted into the helical antenna 31 to be inserted and drawn out.

The helical antenna 31 is coupled to the fixing piece 11 installed in the main body housing 10 by screwing and detachable in the direction of arrow A. The fixing piece 11 is formed of a metallic material to form an RF board of the main body. Is electrically connected to the In addition, when the monopole antenna 32 is completely drawn out of the helical antenna 31, the end of the monopole antenna 32 is connected to the helical antenna 31, so that the function of the antenna occurs.

At this time, by forming or installing a sharply formed contact portion 33 at the lower end of the monopole antenna 32, it is possible to operate the LCD module of the terminal consisting of a touch screen. Therefore, the user can be used as a stylus pen that can separate the helical antenna 31 from the fixing piece 11 and then manipulate the touch screen, which is the LCD module of the terminal used as the data input means.

In the conventional stylus pen combined antenna device, the connection between the terminal fixing piece and the antenna is made of a screw type. In the case of a general screw, since it takes a relatively long time to attach and detach, a double spiral or triple Sometimes it has been changed to spiral.

Figure 1b is another embodiment of a mobile communication terminal equipped with a conventional stylus pen antenna device.

Figure 1b shows the internal configuration of a conventional stylus pen combined antenna device using a snap-fit (snap-fit) structure so that the helical antenna 31 can be removed from the main body smoothly.

The protrusion 34 of a predetermined shape protrudes from the outer circumferential surface of the helical antenna 31. In addition, a mounting groove 12 on which the protrusion 34 may be mounted is formed on the main body housing 10 on which the helical antenna 31 is mounted. Therefore, the user can apply a certain force to the helical antenna 31 to be detached in the direction of the arrow B with one touch on the body housing. In this case, the protrusion may be formed on the body housing 10, and may form a mounting groove on the outer circumferential surface of the helical antenna 31 to correspond to the protrusion.

On the inner surface of the housing 10 of the terminal main body, a metallic leaf spring 13 electrically connected to the RF board is installed, and is configured to be electrically connected to an end of the helical antenna 31 to be mounted.

In the conventional stylus pen combined antenna device having such a structure, when the antenna is pulled out of the housing 10 of the main body to use the antenna as the stylus pen, not only the monopole antenna 32 but also the helical antenna 30 includes the housing of the main body ( Since it is separated from the 10), there was a disadvantage that the radio wave reception rate drops significantly.

The present invention has been made to solve the above-described problem, even if the monopole antenna is drawn out of the main body for use as a stylus pen, the helical antenna is fixed to the main body to improve the radio wave reception rate An object of the present invention is to provide a mobile communication terminal equipped with a combined antenna.

Mobile communication terminal equipped with a stylus pen combined antenna according to the present invention for achieving the above object, a touch screen type movement having an antenna device configured to insert and withdraw a monopole antenna to the helical antenna coupled to the main body In the communication terminal, the monopole antenna has a sharply formed lower end so as to input a signal by pressing the touch screen, and is drawn out from the helical antenna to be independently separated.

The structure of the helical antenna and the monopole antenna to realize such a function can be implemented in various ways as follows.

The first method is to control the detaching operation of the monopole antenna by manipulating the fixing pin.

A portion of the monopole antenna is provided with a fixing groove formed in a direction perpendicular to the drawing direction, and a portion of the helical antenna is formed with a hole-shaped fixing pin hole formed to pass through the center in a direction parallel to the direction of the fixing groove.

In addition, the fixing pin is inserted into the fixing pin hole is formed in a structure capable of reciprocating along the fixing pin hole, and the fixing pin is coupled to the fixing groove a portion to interfere with the extraction operation of the monopole antenna, the elastic pin in the direction in which the fixing pin is coupled to the fixing groove A spring to apply is further provided.

The user controls the separation operation of the monopole antenna by engaging and disengaging into the fixing groove by manipulating the fixing pin.

The second method uses a stopper structure to separate the monopole antenna from the helical antenna.

A male screw is formed on a part of the monopole antenna, and a female screw that can be combined with the male screw is further formed therein, and further includes a stopper coupled to the monopole antenna by a screw coupling structure, and is coupled to the stopper on the lower surface of the helical antenna to rotate the stopper. Form a stopper fixing hole for blocking the.

The user rotates the monopole antenna apart from the stopper, thereby independently detaching the monopole antenna from the helical antenna.

The third method is to distinguish the drawing and separating operation of the monopole antenna using the elasticity of the leaf spring.

A plate spring seating portion is formed on the bottom side of the monopole antenna, and a plate spring seating portion formed in a concave groove shape is formed inside the helical antenna to allow the plate spring to be seated. By allowing the leaf springs to rest, the monopole antenna can be pulled out.

When the monopole antenna is to be separated from the helical antenna, the user separates the monopole antenna by drawing the monopole antenna with a force greater than that of the leaf spring from the leaf spring seat.

In the fourth method, a screw coupling structure is used to distinguish the drawing operation and the separating operation of the monopole antenna.

On the lower side of the monopole antenna, a male-pole monopole screw with an outer diameter equal to the diameter of the outlet is formed, and the upper part of the inner side of the outlet has a female screw structure that can be combined with a monopole screw and is smaller than the outer diameter of the monopole screw. Form a helical screw with an inner diameter of size.

When the monopole antenna is pulled out and the monopole screw is located inside the outlet, the monopole screw and the outlet are combined in a fitting manner so that the monopole antenna does not fall downward unless a separate external force is applied.

In addition, when the monopole antenna is separated from the helical antenna, the monopole antenna is rotated so that the monopole screw moves on the helical screw so that the monopole antenna is drawn out of the helical antenna.

Hereinafter, a mobile communication terminal equipped with a stylus pen antenna according to the present invention will be described with reference to the accompanying drawings.

2 is a perspective view of a mobile communication terminal equipped with a stylus pen antenna according to the present invention in which a monopole antenna is separated.

As shown in FIG. 2, the mobile communication terminal equipped with the stylus pen antenna according to the present invention includes an earpiece 110 for outputting sound and a touch screen 120 having functions of information output and signal input. The upper folder 100, which is provided in the, the keypad 210 for the signal input and the transmitting unit 220 for transmitting the sound on the inner side of the lower folder 200, and fixed to the upper end of the lower folder 200 The antenna device 300 includes a helical antenna 310 and a monopole antenna 350 which is inserted into and withdrawn from the helical antenna 310 and is separated from the helical antenna 310.

The lower end of the monopole antenna 350 is sharply formed so that the user can accurately press a specific portion of the touch screen 120 to be pressed by using the helical antenna 310 as a stylus pen.

A coupling structure of the helical antenna 310 and the monopole antenna 350 will be described with reference to the drawings shown below.

3A illustrates a coupling structure of a monopole antenna using a fixing pin.

As shown in Figure 3a, the central portion of the helical antenna 310 is formed with a hole-shaped outlet 312 penetrating in the longitudinal direction, the monopole antenna 350 is inserted into the outlet 312 is the main body of the mobile communication terminal In and out of and out of.

The monopole antenna 350 has a fixing groove 360 formed at a lower end in a direction perpendicular to the drawing direction, and the helical antenna 310 has a drawing hole 312 in a direction parallel to the direction of the fixing groove 360 at a part of the side surface. ) Is provided with a hole-shaped fixing pin hole 314 formed to pass through.

In addition, the helical antenna 310 is formed into a structure capable of reciprocating along the fixing pin hole 314 by being inserted into the fixing pin hole 314 so that it cannot be separated from the helical antenna 310 when the monopole antenna 350 is drawn out. The fixing pin 320 is coupled to a part of the fixing groove 360 is further coupled.

In addition, a spring (not shown) is provided inside the helical antenna 310 to apply elasticity to the fixing pin 320 in a direction in which the fixing pin 320 is drawn out of the fixing pin hole 314.

The type and structure of the spring can be applied in various ways, and thus the structure for applying elasticity to a specific part is generally used in a commercially available method, so a detailed description thereof will be omitted.

FIG. 3B illustrates a shape in which the monopole antenna is drawn out in the state of FIG. 3A.

When the fixing pole 360 is moved to the position of the fixing pin 320 by pulling the monopole antenna 350 upward in the state of FIG. 3A, it is fixed as shown in FIG. 3B by a spring elastic force applied to the fixing pin 320. A portion of the pin 320 is inserted into the fixing groove 360 is coupled.

Therefore, the monopole antenna 350 is no longer drawn out of the helical antenna 310 and maintains the state as shown in FIG. 3B.

In the state as shown in FIG. 3B, when the monopole antenna 350 is separated from the helical antenna 310 to be used as a stylus pen, the fixing pin 320 is pushed toward the inside of the fixing pin hole 314. After releasing interference with the monopole antenna 350 is pulled upward.

In addition to the structures illustrated in FIGS. 3A and 3B, the coupling structure of the helical antenna 310 and the monopole antenna 350 may be implemented by various methods such as a screw coupling method and a leaf spring method.

4A illustrates a coupling structure of a monopole antenna using a stopper.

The monopole antenna 350 has a male screw 370 formed at a lower end thereof, and a stopper 330 formed at a lower end of the monopole antenna 350 having the male screw 370 formed to cover a portion of the monopole antenna 350 is coupled thereto. do.

A female screw 332 is formed in the stopper 330 to be coupled to the male screw 370, and is coupled to the monopole antenna 350 by a screw coupling method, and rotates the monopole antenna 350 in a direction in which the screw coupling is released. The monopole antenna 350 and the stopper 330 are separated.

In addition, the helical antenna 310 has a stopper fixing hole 340 formed in a shape that can seat the stopper 330 when the monopole antenna 350 is pulled upward. Accordingly, the stopper 330 is introduced into the stopper fixing hole 340 when the monopole antenna 350 is pulled upward.

When the stopper 330 enters the inside of the stopper fixing hole 340, only the linear movement downward is possible, and the stopper 330 is fixed such that movement in the upward and horizontal directions or other rotational movement is impossible.

When the stopper 330 and the stopper fixing hole 340 are formed in a cylindrical shape, the stopper 330 can rotate in a state where the stopper 330 is seated inside the stopper fixing hole 340, and thus, the stopper 330 and the stopper are fixed. The cross section of the hole 340 is formed in a polygonal shape.

FIG. 4B illustrates a shape in which the monopole antenna is drawn out in the state of FIG. 4A.

When the monopole antenna 350 is pulled upward in the state of FIG. 4A, as shown in FIG. 4B, the stopper 330 is seated in the stopper fixing hole 340, and the stopper 330 is the stopper fixing hole 340. When seated in the monopole antenna 350 is no longer drawn upwards.

In the state of FIG. 4A, when the monopole antenna 350 is to be separated from the helical antenna 310, the monopole antenna 350 is rotated around the longitudinal axis by the rotation axis to release the screw from the stopper 330 and then upward. Withdraw.

Since the stopper 330 cannot rotate in the state of being seated in the stopper fixing hole 340, when the user rotates the monopole antenna 350 in the state of FIG. 4B, only the monopole antenna 350 rotates. Accordingly, the screw coupling with the stopper 330 is released from the monopole antenna 350 to allow the helical antenna 310 to be pulled out.

5A illustrates a coupling structure of a monopole antenna using a leaf spring.

The monopole antenna 350 has a leaf spring 380 that applies elasticity to the outside at the bottom thereof, and the helical antenna 310 has a leaf spring seating groove 316 formed in a concave groove shape to seat the leaf spring 380. ) Is provided on the inner side of the outlet 312.

When the monopole antenna 350 is pulled upward and the leaf spring 380 is located at the outlet 312, the leaf spring 380 contacts the wall of the outlet 312 and simultaneously applies an elastic force to the wall of the outlet 312. Due to the increased friction between the leaf spring 380 and the outlet 312, a large force is required to draw out the monopole antenna 350.

FIG. 5B illustrates a shape in which the monopole antenna is drawn out in the state of FIG. 5A.

When the monopole antenna 350 is pulled upward in the state of FIG. 5A and the leaf spring 380 is positioned in the leaf spring seating groove 316 as shown in FIG. 5B, the monopole antenna 350 is not subjected to an external force. As shown in FIG. 5B, a portion of the helical antenna 310 is drawn outward.

When the monopole antenna 350 is to be drawn out of the helical antenna 310 in the state of FIG. 5B, the monopole antenna 350 has a force greater than the frictional force generated when the leaf spring 380 passes through the outlet 312. To pull up.

6A illustrates a coupling structure of a monopole antenna using a screw coupling structure.

The monopole antenna 350 has a male thread structure monopole screw 390 having an outer diameter equal to the diameter of the outlet 312 on the lower side, and the helical antenna 310 is a female screw coupleable with the monopole screw 390. A helical screw 318 having a structure and having an inner diameter smaller than the outer diameter of the monopole screw 390 is provided at the upper portion of the inner surface of the outlet 312.

FIG. 6B illustrates a shape in which the monopole antenna is drawn out in the state of FIG. 6A.

When the user pulls out the monopole antenna 390 in the state of 6a so that the monopole screw 390 is positioned inside the outlet 312, the monopole screw 390 and the outlet 312 are fitted as shown in FIG. 6B. Are combined into a form. Therefore, unless a separate external force is applied, the monopole antenna 390 does not fall downward and maintains the drawn state.

In addition, since the outer diameter of the monopole screw 390 is larger than the inner diameter of the helical screw 318, the monopole antenna 350 is upward when drawn out to the position where the monopole screw 390 and the helical screw 318 interfere. Will no longer be withdrawn.

In the state of FIG. 6B, when the monopole antenna 350 is separated from the helical antenna 310, the monopole screw 350 is rotated to enter the monopole screw 390 into the helical screw 318, and then the monopole screw ( Rotate monopole antenna 350 until 390 completely exits to the top of helical screw 318.

When the monopole screw 390 is completely pulled out of the helical screw 316, the monopole antenna 350 is completely separated from the helical antenna 310.

Although the technical spirit of the present invention has been described in detail according to the above-described preferred embodiment, the embodiment applied to the clamshell phone is for the purpose of explanation, and it should be noted that the application of the present invention is not limited to the clamshell phone. do. In addition, the present invention can be applied to all mobile terminals such as various mobile communication terminals and PDA, it will be understood by those of ordinary skill in the art that various embodiments are possible within the scope of the technical idea of the present invention.

When using a mobile communication terminal equipped with a stylus pen combined antenna according to the present invention, even if the monopole antenna is drawn out of the main body for use as a stylus pen, the helical antenna is fixed to the main body, so that a certain level of propagation The advantage is that the reception rate can be maintained.

Claims (5)

delete An antenna device comprising a helical antenna having a hole-shaped outlet formed therein in the longitudinal direction and a monopole antenna coupled to the helical antenna to be inserted into and withdrawn from the outlet, and a touch having a function of information output and signal input. In the mobile communication terminal comprising a screen, The monopole antenna is sharply formed at the lower end so as to input the signal by pressing the touch screen, and is coupled to the helical antenna with a coupling structure that is drawn out to the outside of the helical antenna to be independently separated, and a drawing direction is provided at a portion of the lower end. It has a fixing groove formed in a staggered direction, The helical antenna has a hole-shaped fixing pin hole penetrating the outlet in a direction parallel to the direction of the formation of the fixing groove therein, is inserted into the fixing pin hole is formed in a structure capable of reciprocating movement along the fixing pin hole The mobile communication terminal further comprises a fixing pin coupled to the fixing groove and a spring for applying elasticity in the direction in which the fixing pin is coupled to the fixing groove so as to interfere with the drawing operation of the monopole antenna. . An antenna device comprising a helical antenna having a hole-shaped outlet formed therein in the longitudinal direction and a monopole antenna coupled to the helical antenna to be inserted into and withdrawn from the outlet, and a touch having a function of information output and signal input. In the mobile communication terminal comprising a screen, The monopole antenna is sharply formed at the lower end so as to press the touch screen to input a signal, and is coupled to the helical antenna with a coupling structure that can be independently separated by being drawn out of the helical antenna, and a male screw is formed at a part of the lower end. And a stopper coupled to the male screw and having a stopper formed therein and coupled to the monopole antenna by a screw coupling structure. The helical antenna is formed in a concave groove shape so that the stopper is seated, the mobile communication terminal, characterized in that the stopper fixing hole which interferes with the rotational movement of the stopper when the stopper is seated on the bottom surface. An antenna device comprising a helical antenna having a hole-shaped outlet formed therein in the longitudinal direction and a monopole antenna coupled to the helical antenna to be inserted into and withdrawn from the outlet, and a touch having a function of information output and signal input. In the mobile communication terminal comprising a screen, The monopole antenna is sharply formed at the lower end so as to input the signal by pressing the touch screen, is drawn out to the outside of the helical antenna and coupled to the helical antenna independently coupled to the helical antenna, the leaf spring protruding outside On the bottom side, The helical antenna has a leaf spring seating portion formed in a concave groove shape so that the leaf spring is seated on the inner surface of the outlet. An antenna device comprising a helical antenna having a hole-shaped outlet formed therein in the longitudinal direction and a monopole antenna coupled to the helical antenna to be inserted into and withdrawn from the outlet, and a touch having a function of information output and signal input. In the mobile communication terminal comprising a screen, The monopole antenna is sharply formed at the lower end so as to input the signal by pressing the touch screen, and is coupled to the helical antenna with a coupling structure that is independently separated by being drawn out of the helical antenna and is the same size as the diameter of the outlet. A monopole screw with a male thread shape having an outer diameter of The helical antenna has a female screw shape that can be combined with the monopole screw and has a helical screw having an inner diameter smaller than an outer diameter of the monopole screw on a portion of the upper end of the inner side of the outlet.

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