KR19990030745U - Antenna up / down driving device of mobile communication terminal - Google Patents

Abstract

The present invention provides an antenna up and down driving device of a mobile communication terminal.

The antenna up and down drive device of the present invention, a battery as a power source of a mobile terminal, a motor for transmitting a driving force for raising and lowering the antenna by receiving power from the battery, a motor shaft connected to the motor, a bobbin connected to the motor shaft A steel wire wound at one end of the bobbin and unrolled to move the antenna up and down, a ground portion coupled to the other end of the steel wire to contact the bottom end of the antenna, a load resistance connected to the + end of the battery to generate a voltage difference, and It is characterized in that it comprises four switches to control the voltage input to the motor.

According to the present invention, when making or receiving a call using a mobile communication terminal, the antenna can be easily removed and inserted with one hand without the need to remove and insert the antenna with both hands. Can be obtained.

Description

Antenna up / down driving device of mobile communication terminal

The present invention relates to a mobile communication terminal, such as a mobile phone, and more particularly to an antenna up and down driving apparatus that can be used to move up and down the RF transmitting and receiving antenna of the terminal using a vibration motor of the mobile communication terminal.

Nowadays, the portable terminal of the mobile terminal is on the increase, and thus the majority of citizens use the mobile terminal. However, when using a mobile communication terminal, i.e., a cellular phone, both the outgoing and the outgoing antenna can be pulled out and the outgoing call and the incoming call can be made by pressing a button on a predetermined key matrix. By the way, the operation of removing and inserting the above antenna has always had to use both hands because it is necessary to remove the antenna with one hand while holding the terminal with one hand.

Therefore, in some cases, users are required to use a one-handed driving in the situation of not only inconvenience, but also had to face a dangerous situation.

An object of the present invention is to provide an antenna up and down drive apparatus which can be easily drawn out and inserted using only one hand without using both hands when using a mobile communication terminal.

1 is a cross-sectional view of the internal configuration of the terminal having the antenna up and down drive device of the present invention, 1a is a view of the insertion state of the antenna and 1b is a drawing of the antenna out state,

2 is an enlarged cross-sectional view of the circled portion of FIG. 1A;

3 is a circuit diagram of the antenna up and down drive device of the present invention,

4 is a driving circuit diagram with an antenna inserted into its housing;

5 is a drive circuit diagram in a state where an antenna is pulled out of its housing.

Explanation of symbols for the main parts of the drawings

10: motor 11: motor shaft

12: bobbin 13: steel wire

14: ground portion 15: antenna

15a: lower end 15b: antenna housing

16: first switch 17: second switch

18: third switch 19: fourth switch

20: crank 21: fifth switch

22: switch shaft 23: unbalance weight

30: battery

An antenna up and down drive device of the present invention for achieving the above object, a battery as a power source of a mobile terminal, a motor for transmitting a driving force for raising and lowering the antenna by receiving power from the battery, a motor shaft connected to the motor, Bobbin connected to the motor shaft, a steel wire coupled to one end of the bobbin is wound and unrolled from the bobbin to raise and lower the antenna, a ground portion coupled to the other end of the steel wire and coupled to the lower end of the antenna, the + end of the battery It is provided with an antenna up and down drive device of a mobile communication terminal, characterized in that it is provided with a load resistor connected to and generating a voltage difference and four switches to control the voltage input to the motor.

At this time, it is provided with a crank connected to the motor shaft to regulate the connection between the motor and the motor shaft and another switch for switching the connection between the motor shaft, the switch may have a switch shaft connected to the motor shaft perpendicularly.

The four switches may include a first switch installed at an arbitrary position of an upper end of one side of an antenna housing inside the terminal, a second switch installed at an arbitrary position of a lower end of one side of the antenna housing, and an upper end of a right side of the terminal. And third and fourth switches installed at arbitrary positions and protruding out of the terminal.

When the antenna is inside the terminal, the first switch is in an on state and the switch 2 is in an off state. In this state, when the third switch is pressed, power is applied from a battery to drive a motor to drive the antenna up. As the ground part turns off the first switch, the driving of the motor is stopped and the ascending operation of the antenna is stopped.

On the other hand, when the antenna protrudes out, the first switch is in an off state and the second switch is in an on state. When the fourth switch is pressed in this state, power is supplied from the battery to drive the motor. The motor rotates in reverse by the voltage difference caused by the load resistance, and the antenna enters the antenna housing. The second switch is turned off to stop the driving of the motor stops the lowering operation of the antenna.

This will be described in detail below with reference to the accompanying drawings, the antenna up and down drive device of the present invention.

1A and 1B illustrate a configuration of an antenna up / down device of a mobile communication terminal of the present invention. As illustrated, the antenna up / down device of the present invention includes a motor 10 that is powered by a battery (not shown), that is, power. A motor shaft 11 connected to transmit power, a bobbin 12 installed at one point of the motor shaft 11, and one end coupled to the bobbin 12 are wound and unwound on the bobbin 12 to antenna A ground portion 14 having a steel wire 13 up and down 15 and having the other end 14 of the steel wire 13 coupled to the lower end portion 15a of the antenna 15 is formed. In addition, the apparatus includes a first switch 16 installed at the upper left of the housing 15b of the antenna 15, a second switch 17 installed at the upper left of the antenna 15, and a right side of the housing 15b of the antenna 15. It is provided with the 3rd switch 18 and the 4th switch 19 installed in arbitrary positions of an upper end.

In the state of FIG. 1A, the antenna 15 is inserted into the housing 15b, and the second switch 17 is turned off. In the state of FIG. 1B, the antenna 15 is pulled out of the housing 15b. In this case, the first switch 16 is turned off.

FIG. 2 is an enlarged state diagram of the original part of FIG. 1A, and 20 is a crank connecting and disconnecting the motor 10 and the motor shaft 11 to move the motor shaft by moving left and right of the fifth switch 21. 11) and enforcement is carried out. When the fifth switch 21 is turned off, the coupling of the crank 20 is separated by the switch shaft 22 to separate the crank shafts, that is, the motor shafts on the left and right of the crank. As a result, the automatic raising and lowering of the antenna 15 may be canceled and used. 23 is an unbalance weight for the vibration of the vibration motor. And 24 is the support.

Hereinafter, the operation of the antenna up / down drive device of the present invention configured as described above will be described in detail with reference to FIGS. 3, 1A, and 2 showing a circuit diagram thereof.

First, the ascending operation of the antenna 15 will be described. At this time, that is, when the antenna 15 is inserted into the housing 15b, the first switch 16 is in the on state and the second switch 17 is in the off state. When the user presses the third switch 18 installed outside the terminal, 5V power is applied to one end of the motor 10 by the battery 30, and 2.5V is applied to the other end of the motor via the load resistance R. Power is applied and the motor rotates forward.

Then, power is transmitted to the motor shaft 11, and the bobbin 12 connected to the motor shaft rotates to unwind the steel wire 13 wound on the bobbin 12 so that the ground portion 14 is connected to the antenna 15. By pushing the lower end portion 15a, the antenna is driven upward to come out of the housing. At this time, when the ground portion 14 comes into contact with the first switch 16, the first switch 16 is disconnected and the circuit of the motor 10 is disconnected, so that the driving of the motor 10 is stopped and the antenna ( The upward operation of 15) ends.

Meanwhile, the lowering operation of the antenna 15 will be described. At this time, that is, when the antenna 15 is pulled out of the housing 15b, the first switch 16 is in an off state and the second switch 17 is in an on state. When the user presses the fourth switch 18 installed outside of the terminal, 0 V power is applied to one end of the motor 10 by the battery 30, and 2.5 V is applied to the other end of the motor via the load resistance R. Power is applied and the motor rotates in reverse.

Then, power is transmitted to the motor shaft 11 and the bobbin 12 connected to the motor shaft is reversely rotated so that the steel wire 13 is wound around the bobbin 12. Then, the antenna 15 enters the housing 15b, and when the ground portion 14 contacts the first switch 16, the contact of the second switch 16 is disconnected so that the circuit of the motor 10 is connected. Since the driving of the motor 10 is stopped, the downward operation of the antenna 15 entering the housing 15b is terminated.

According to the antenna up / down driving device of the mobile communication terminal of the present invention as described above, when making an outgoing or receiving call using a mobile communication terminal, the antenna is held with one hand without having to remove and insert the antenna with both hands. Since it can be easily removed and inserted, the effect of giving convenience can be obtained.

Although the present invention has been described so far by one embodiment of the present invention, the present invention is not limited thereto and may be variously modified and modified by those skilled in the art without departing from the spirit and scope of the appended claims below. have.

Claims (5)

A battery as a power source of a mobile terminal, a motor which is supplied with power by the battery and transmits a driving force for raising and lowering an antenna, a motor shaft connected to the motor, a bobbin connected to the motor shaft, and one end coupled to the bobbin. A steel wire wound and unrolled from the wire to move the antenna up and down, a ground portion coupled to the other end of the steel wire and coupled to the lower end of the antenna, a load resistance connected to the + end of the battery to generate a voltage difference, and input to the motor An antenna up and down drive device of a mobile communication terminal, characterized in that it comprises four switches for controlling the voltage. The switch of claim 1, further comprising a crank connected to the motor shaft to control a connection between the motor and the motor shaft, and another switch for switching the connection between the motor shaft and the switch vertically connected to the motor shaft. An antenna up and down drive device of a mobile communication terminal, characterized in that it comprises a shaft. The terminal of claim 1, wherein the four switches are provided with a first switch installed at an arbitrary position of an upper end of one side of an antenna housing and a second switch installed at an arbitrary position of a lower end of one side of the antenna housing. The antenna up and down drive device of the mobile communication terminal, characterized in that consisting of the third and fourth switches which are installed at an arbitrary position of the upper end of the right side protruding out of the terminal. 4. The motor of claim 3, wherein the first switch is in an on state and the switch 2 is in an off state when the antenna is inside the terminal. When the third switch is pressed in this state, power is applied from a battery to drive a motor. The antenna is moved up and down and the antenna is driven up and down, the ground is turned off the first switch, the driving of the motor is stopped and the ascending operation of the antenna of the mobile communication terminal, characterized in that the stop. 4. The method of claim 3, wherein the first switch is in an off state and the second switch is in an on state when the antenna protrudes out. When the fourth switch is pressed in this state, power is applied from the battery to drive the motor. The motor rotates in reverse due to the voltage difference caused by the load resistance, and the antenna enters the antenna housing. The second switch is turned off by the driving of the motor is stopped, the antenna down moving device of the mobile communication terminal, characterized in that the stopping operation of the antenna is stopped.