KR20010028652A - device for variable position antenna of folder type terminal - Google Patents

Abstract

PURPOSE: An apparatus for varying the location of an antenna included in a folder-type terminal is provided to prevent the radio wave, transmitted and received via the antenna, from being interfered by an upper folder, by restraining the location of the antenna from being overlapped by that of the upper folder. CONSTITUTION: A plurality of convex parts(52) are rotationally supported by a lower folder(3), and formed at the back of a fixed member(40). A rotation angle of a rotation member(50) is controlled according to the selective insertion of one of concave parts(42). An antenna(70) is inserted into an antenna holder(60). A connection part(80) is connected to the lower end of the antenna(70) in the lower part of the antenna holder(60). A connection part(81) is installed in a connection pipe(61) so that a connection part(80) can be coupled to the lower folder(3).

Description

Device for variable position antenna of folder type terminal}

The present invention relates to a clamshell terminal, and more particularly, to a device capable of varying the position of an antenna in a clamshell terminal.

In general, a portable terminal is one of wireless communication devices capable of calling or exchanging information without being limited to a place and a distance within a radio range of a base station.

Such a portable terminal has a flip type in which a flat flip is rotatably coupled to the bottom of the body to selectively open and close the keypad, and rotates one end of each of the upper and lower folders to which the function is provided. As it is possible to fold or unfold them by combining them, a folder type, which greatly reduces the overall length of the portable device, has become mainstream.

In particular, as shown in Fig. 1, the folder type pivotally combines one end of the upper folder 1 and the lower folder 3, and selectively selects the upper and lower folders 1 and 3 from this rotation point. It can be folded and unfolded.

Among them, the subfolder 3 includes a keypad 5 for inputting telephone numbers and data on its front face, a talker 7 provided below the keypad for transmitting voice to the other party, and An antenna 11 is provided at the upper right of the lower folder 3 to transmit and receive radio waves.

In addition, the battery 13 is detachably coupled to the rear of the lower folder 3.

In addition, the upper folder 1 is provided with an LCD section 15 for displaying data input / output status on its inner surface, and a sign language section 17 for listening to the other party's voice.

The use process of the folder type terminal having such a configuration is as follows.

First, when a call is received, the radio wave is input through the antenna 11 installed at the upper right side of the lower folder 3, and is known to the user by a signal due to a bell, vibration, or lighting of a lamp.

Then, the user recognizes this and opens the upper and lower folders (1) and (3) at the pivot point, and then puts their ears to the earpiece 17 of the upper folder 1 and sends the talker 7 of the lower folder 3 to the ear. You speak to the person and proceed with the call.

On the other hand, when making a call, the phone 5 is operated by operating the keypad 5 while the upper and lower folders 1 and 3 are opened to expose the keypad 5 provided at the front of the subfolder 3. Press the send button to send a signal and proceed with the call.

On the other hand, when the terminal is not used, when the inner surfaces of the upper and lower folders (1) and (3) are folded so as to face each other, the length is reduced to about half as compared to when the terminal is unfolded, thereby making it portable.

Such a folding terminal is an advanced product in terms of miniaturization, but there is room for improvement in terms of call sensitivity as in other terminals.

Particularly, when the upper and lower folders 1 and 3 are opened, a part of the antenna 11 is blocked by the upper folder 1, and the transmission and reception of radio waves in the specific direction is interrupted, thereby temporarily making noise during a call. There was a problem that occurred.

This problem can be easily seen by looking at the radiation pattern in the horizontal plane of radio waves transmitted and received by the antenna 11 as shown in FIG.

That is, the normal radiation pattern should form a closed curve of a uniform shape as a whole (dotted line part), but any part of the closed curve is distorted (solid line part) while the radio wave transmission and reception of the antenna 11 is disturbed by the opening of the upper folder 1. ) It appears as an abnormal closed curve.

This distortion is a problem that the call sensitivity in a particular direction is lowered, which is a problem only in the folder type terminal.

The present invention has been made to solve the above conventional problems, by improving the position of the antenna to the variable relative to the body so as to avoid the overlapping of the antenna and the upper folder positionally even when the folder-type terminal is expanded Its purpose is to prevent the radio waves transmitted and received by the antenna from being interfered by the upper folder.

1 is a perspective view showing an example of a general foldable terminal

Figure 2 is a horizontal radiation pattern of the radio wave transmitted and received by the antenna in the conventional foldable terminal

Figure 3 is an exploded perspective view showing an antenna position variable unit according to the present invention

4 is an application state diagram of FIG.

Figure 5a is a longitudinal sectional view of the antenna variable position unit according to the present invention, a state diagram before rotation

Figure 5b is a longitudinal cross-sectional view of the antenna variable position unit according to the present invention, the state in which the rotation is in progress

FIG. 6A is a state diagram of FIG. 5A seen in the A direction; FIG.

FIG. 6B is a state diagram of FIG. 5B viewed in the B direction; FIG.

Explanation of symbols for main parts of the drawings

3: subfolder 40: holding member

42: recess 50: rotating member

52: convex portion 60: antenna holder

61 connector 70 antenna

80: first connecting portion 81: second connecting portion

90: spring

According to an aspect of the present invention for achieving the above object, a fixing member having a plurality of recesses radially provided on the rear facing surface in the lower folder; While being rotatably supported by the subfolder, a convex portion is formed on a surface opposite to the concave portion forming surface of the fixing member so that the rotation angle is adjusted as the convex portion is selectively inserted into a specific concave portion of the plurality of concave portions. A rotating member; It is integrated in the rear of the rotating member perpendicular to the longitudinal direction of the lower folder is rotated in the lateral direction of the lower folder as the rotating member is rotated, the antenna position variable device of the foldable terminal consisting of an antenna holder is fixed to the antenna is provided do.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, FIGS. 3 to 6B.

First, referring to FIGS. 3 to 5B, a fixing member 40 having a plurality of recesses 42 formed in a radial direction is provided at one side of the rear-facing surface of the lower folder 3.

In this case, the fixing member 40 may be integrated with the subfolder 3 or may be manufactured separately and combined.

In addition, the rear side of the fixing member 40 is rotatably supported by the lower folder 3, and a plurality of convex portions 52 are formed on the opposite surface to the concave portion 42 forming surface, and the convex portion Rotating member 50 whose rotation angle is adjusted as it is selectively inserted into any one of the plurality of recesses 42 is provided (see FIG. 3).

At this time, the concave portion 42 and the convex portion 52 should be smoothly coupled or separated, so that smooth rotation of the rotating member 50 with respect to the fixing member 40 can be expected. .

In addition, one side of the connecting tube 61 parallel to the axial direction of the rotating member is integrated at the rear center of the rotating member 50, and the antenna holder 60 is integrated at the other side of the connecting tube to form a right angle with the connecting tube. have.

At this time, the antenna 70 is inserted into the antenna holder 60, as shown in Figures 5a and 5b, the first connection portion 80 is connected to the lower end of the antenna 70 in the inner lower portion of the antenna holder 60 Is provided, and a second connecting portion 81 for connecting the first connecting portion 80 and the subfolder 3 is connected to the connecting pipe 61.

Such an antenna connection structure is an improvement structure for maintaining the connection structure even when the antenna 70 including the antenna holder 60 is changed to the rotation structure.

Then, a spring 90 is installed between the rotating member 50 and the lower folder 3 on which the rotating member is supported so that the rotating member receives a continuous elastic force toward the fixing member 40 when the rotating member is rotated. It is.

If the spring 90 is not installed, the binding force for continuously contacting the opposing surfaces of the fixing member 40 and the rotating member 50 is not guaranteed, so expecting accurate operation when the rotating member 50 is rotated. Becomes difficult.

In addition, a guide groove 31 is formed in the antenna holder 60 installation portion of the subfolder 3 as shown in FIG. 4 in the rotation direction of the antenna holder, and the subfolder 3 is rotated when the antenna holder 60 is rotated. And to guide the antenna holder 60 to be rotated in a normal track.

The operation process of the antenna variable device having the above configuration is as follows.

5A and 6A, when the upper folder 1 of the clamshell terminal is opened from the state in which the antenna holder 60 including the antenna 70 is standing, the antenna 70 and the upper folder 1 are positioned. Since the radio wave transmission and reception to the antenna is partially overlapped with each other, the antenna holder 60 should be rotated to avoid this.

When rotating the antenna holder 60 to which the antenna 70 is coupled, if an artificial force is applied toward one side of the subfolder 3 while the antenna holder is held, the antenna holder 60 causes the subfolder 3 to be driven by this force. ), Rotated clockwise when viewed from the front to avoid overlap with the upper folder 1 (see FIGS. 5B and 6B).

At this time, when the antenna holder 60 is rotated, a plurality of convex portions 52 formed on the surface of the rotating member are fixed in surface contact with the rotating member 50 integrally formed on one side of the lower side thereof in the same direction. It is separated from the recess 42 of the member 40 (see FIG. 5B).

In this state, when the antenna holder 60 is continuously rotated in the same direction, the antenna holder 60 is stopped at a predetermined angle while being inserted into the next recess 42 located on the line of the convex portion 52 in the rotation direction. Becomes

At this time, since the spring 90 is elastically pushing the rotating member 50 toward the fixing member 40, the rotating member 50 and the fixing member 40 can be kept in a sealed state, and the adhesion state is maintained. When canceling, the rotating member 50 must be rotated with a force greater than the elastic force of the spring (90).

The rotation angle of the rotation member 50 in the above is able to adjust the density of the rotation angle as the number of the concave portion 42 is less and less.

That is, in order to increase the accuracy of the rotation angle of the rotating member 50 including the antenna holder 60, it is possible to narrow the interval between the recesses 42, and in the opposite case, the interval between the recesses 42 can be increased. .

On the other hand, in the present invention, since the antenna holder 60 is rotated, its connection structure must also be changed in view of this.

To this end, the inner lower portion of the antenna holder 60 is provided with a first connecting portion 80 which is connected to the lower end of the antenna 70, the first connecting portion 80 and the subfolder (3) is a connecting pipe 61 The connection structure between the antenna 70 and the subfolder 3 has a c-shape by connecting by the second connecting portion 81 in parallel with the.

At this time, the first connecting portion 80 and the second connecting portion 81 are installed to rotate in accordance with the rotation angle of the antenna 70 to maintain the connected state even if the antenna 70 flows.

Accordingly, even when the antenna 70 is rotated, the first connection portion 80 and the second connection portion 81 connected to the lower end of the antenna are rotated in the tubular direction so that the antenna 70 and the subfolder 3 remain connected. do.

According to the present invention as described above, the top of the antenna is rotated outward of the subfolder based on the bottom thereof, so that even if the upper folder of the clamshell terminal is opened from the lower folder, positional overlap with the upper folder can be avoided.

Accordingly, the radio waves transmitted and received by the antenna can be avoided from being interfered with by the upper folder, thereby improving the call sensitivity.

In addition, there is an advantage that the amount of electromagnetic waves transmitted to the head portion can be minimized by keeping the antenna, which is the portion of the electromagnetic wave most harmful to the human body, as far as possible from the head portion through rotation.

Claims (5)

A fixing member having a plurality of recesses radially provided on a rearward facing surface in the subfolder; While being rotatably supported by the subfolder, a convex portion is formed on a surface opposite to the concave portion forming surface of the fixing member so that the rotation angle is adjusted as the convex portion is selectively inserted into a specific concave portion of the plurality of concave portions. A rotating member; An antenna position variable device of a foldable terminal, which is integrated with the rear side of the rotating member so as to be perpendicular to the longitudinal direction of the lower folder, and rotates in the lateral direction of the lower folder as the rotating member is rotated, and the antenna is fixed. The method of claim 1, And installing a spring between the rotating member and a lower folder on which the rotating member is supported, such that the rotating member receives an elastic force toward the fixing member when the rotating member is rotated. The method of claim 1, And a contact surface of the concave portion and the convex portion is a curved surface so as to smoothly insert or insert the convex portion from the concave portion. The method of claim 1, Antenna position variable device of a foldable terminal including a guide groove for guiding the rotation of the antenna is formed in the antenna installation portion of the lower folder The method of claim 1, In the lower part of the inside of the antenna holder is provided with a rotatable first connecting portion connected to the lower end of the antenna, And the first connecting portion and the body side terminal are installed to penetrate the fixing member and the rotating member in the axial direction and are connected by a second connecting portion which is rotatable with the first connecting portion.