JP2002094613A - Antenna device and portable radio device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an antenna device by which the enclosure of a portable radio device can be vibrated without being restricted in terms of a space inside the enclosure of the portable radio device, and to provide the portable radio device. SOLUTION: In the portable radio device 1, a vibration generating means 13 is arranged inside the head part 8 of an antenna 6 which protrudes from the enclosure 2 of the device 1. Consequently, the enclosure 2 can be vibrated without being restricted in terms of the space inside the enclosure 2. A space which is occupied by a vibration generating source inside the enclosure 2 in conventional devices can be used effectively, and it is possible to promote that the enclosure 2 of the device 1 can be miniaturized and made thin. In this manner, the space inside the head part 8 is used effectively, and a vibration in the reception of radio waves is ensured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna device used for a mobile communication device such as a portable telephone. The present invention also relates to a portable wireless device having an antenna.

[0002]

2. Description of the Related Art Conventionally, as a technique in such a field, there is JP-A-8-288725. The mobile phone described in this publication is provided with an antenna device, and this antenna device is a pop-up type that can pull out a pole portion from a housing. A cylindrical or frustoconical head that protrudes from the housing is fixed to the tip of the pole. A helical coil antenna is housed in the head, and a monopole antenna is housed in the pole. By incorporating such two types of antennas, the reception / transmission function of the mobile phone is improved.
In addition, there is known a technique in which when a predetermined radio wave is received, the housing is vibrated by a vibration source housed in the housing of the mobile phone, and a user is notified of the vibration.

[0003]

[0004] Portable mobile communication devices such as today's mobile telephones have become increasingly multifunctional and space-constrained in the housing due to the disposition of various electronic components in the housing. It is extremely large. As a result, it is required to further reduce the size of a vibration source such as a vibration motor in the housing. However, if the size reduction is promoted, it becomes difficult to generate a vibration force. In addition, due to space limitations in the housing, if the vibration source is arranged near a heavy object such as a battery, the housing may be difficult to vibrate, and it may be difficult to generate appropriate incoming vibration.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and in particular, an antenna device and a portable radio which vibrate the casing without being limited in space in the casing of the portable radio apparatus. It is intended to provide a device.

[0005]

An antenna device according to the present invention is an antenna device attached to a portable radio device for receiving a predetermined radio wave, wherein the head portion projects from a housing of the portable radio device; And a vibration generating means disposed in the head portion and vibrating when a radio wave arrives.

This antenna device was invented based on the technical idea of not disposing a vibration source in a housing of a portable wireless device having a lot of space restrictions, and the idea of the location of the vibration source was changed. Things. That is, in the present invention, the vibration generating means is disposed in the head portion protruding from the housing of the portable wireless device. Thus, the housing can be vibrated without being restricted by space in the housing. Further, the space that has been occupied by the vibration source in the housing can be effectively used, and the size and thickness of the housing of the portable wireless device can be promoted. As described above, according to the present invention, vibration at the time of radio wave arrival is ensured by effectively utilizing the space in the head portion of the antenna device.

Further, it is preferable that a helical coil antenna is arranged around a vibration generating motor as a vibration generating means in the head portion. In such a configuration, the vibration generating motor is disposed by effectively utilizing the internal space in the head portion provided with the helical coil antenna.

It is preferable that a holder is disposed between the body of the vibration generating motor and the helical coil antenna. By employing such a holder, the helical coil antenna can be fixed so as to be pressed against the head portion, and at the same time, the fixing of the vibration generating motor in the head portion is simplified. Further, when the holder is formed of an electrically insulating material, the helical coil antenna and the vibration generating motor do not mutually affect each other.

[0009] In the pole portion extending from the head portion,
It is preferable that a terminal for supplying power to the vibration generating means be provided close to the head portion and exposed from the surface of the pole portion.
In such a configuration, power supply to the vibration generating means is cut off in a state where the pole portion is pulled out of the housing, and power can be supplied to the vibration generating means in a state where the pole portion is pushed into the housing. This is to prevent a situation in which even if the vibration generating means is vibrated in a state where the pole portion is pulled out, the vibration is absorbed by the pole portion and becomes difficult to be transmitted to the housing. Further, such a configuration also takes into consideration that the pole portion is usually used in a state of being pushed into the housing in order to avoid bending when the radio wave arrives.

A portable wireless device according to the present invention is a portable wireless device in which an antenna for receiving a predetermined radio wave is attached to a housing, a head portion provided at a tip of the antenna and projected from the housing, And vibration generating means for vibrating when a radio wave arrives.

This portable radio device is proposed based on a technical idea that a vibration source is not arranged in a housing having a lot of space restrictions.
The idea was changed. That is, in the present invention, the vibration generating means is disposed in the head portion of the antenna protruding from the housing of the portable wireless device. Thus, the housing can be vibrated without being restricted by space in the housing. Then, the space that has been occupied by the vibration source in the housing is effectively utilized, and the size and thickness of the housing of the portable wireless device can be promoted. As described above, in the present invention, the vibration at the time of radio wave arrival is ensured by effectively utilizing the space in the head portion of the antenna. When a vibration source is provided in the housing, the vibration generating means in the antenna and the vibration source in the housing complement the vibration with each other.

A plug terminal extending from the head portion and capable of entering and exiting the housing is provided with a plug terminal for supplying power to the vibration generating means, proximate to the head portion and exposed from the surface of the pole portion. Preferably, the socket terminal that contacts the plug terminal is fixed. Such a configuration,
When the pole part is pulled out of the housing, the socket terminal and the plug terminal are cut off and the power supply to the vibration generating means is cut off. Thus, power can be supplied to the vibration generating means. This is to prevent a situation in which even if the vibration generating means is vibrated in a state where the pole portion is pulled out, the vibration is absorbed by the pole portion and becomes difficult to be transmitted to the housing. Further, such a configuration also takes into consideration that the pole portion is usually used in a state of being pushed into the housing in order to avoid bending when the radio wave arrives.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of an antenna device and a portable radio device according to the present invention will be described below in detail with reference to the drawings.

A portable telephone 1 shown in FIG. 1 is an example of a portable radio device. In this portable telephone 1, a liquid crystal display screen 3 and a push button 4 are arranged on the surface of a plastic casing 2; Inside, electronic components for achieving various functions and a rechargeable battery as a power supply source are mounted. Further, the mobile phone 1 has a pop-up type antenna 6 that can be pulled out.
Is provided. The antenna 6 extends straight and includes a pole portion 7 pulled out of the housing 2 when necessary.
And fixed to the tip of the pole portion 7 and always
And a head portion 8 exposed outside.

The pole portion 7 of the antenna (antenna device) 6 realizes a pop-up type as shown in FIGS. 2 and 3, and the inside thereof extends over substantially the entire length of the pole portion 7. A monopole antenna 9 is housed. The monopole antenna 9 is pulled out of the housing 2 and used during a call to improve the transmission / reception state. At the lower end of the pole part 7, a stopper part 11 for limiting the amount of pull-out is provided.

Further, the head portion 8 of the antenna 6 is formed in a cylindrical or truncated cone shape, and accommodates therein a helical coil antenna 10 for making the overall length as long as possible and improving the transmission / reception state. The helical coil antenna 10 is spirally wound along an inner wall surface 12a of a wall portion 12 that forms the outer shape of the head portion 8. The bottom of the head 8 is formed as a metal plug terminal 5 to be electrically connected to the helical coil antenna 10.

Here, in order to surely vibrate the housing 2 without being restricted by the space in the housing 2, a small vibration generating motor 13 which is an example of a vibration generating means is mounted on the head portion 8. The calling function is achieved by the motor 13. Therefore, the space previously occupied by the vibration source in the housing 2 can be effectively used, and the size and thickness of the housing 2 of the mobile phone 1 can be reduced.

The vibration generating motor 13 has a diameter of about 4 mm.
And has a cylindrical metal body 14 having a length of about 10 mm, in which a rotor wound with coils and a stator made of a permanent magnet are housed in order to constitute a cored motor. Have been. Power is supplied to the rotor by the body 1
4 is carried out by the terminal portions 15 and 16 made of elastic metal pieces exposed from the rear wall 14a. Then, the terminal portions 15 and 16 are pressed against the contact portions 21a and 22a exposed in the head portion 8.

The body 14 of the motor 13 is loaded into an electrically insulating rubber holder 20 having a cylindrical shape.
Helical coil antenna 1 is provided on the outer peripheral surface of holder 20.
0 is wound. And this holder 20
At the time of assembling the antenna 6, the antenna 6 is pushed into the head portion 8 from the bottom side thereof.

By employing such a rubber holder 20, the helical coil antenna 10 is fixed so as to be resiliently pressed against the inner wall surface 12a of the head portion 8, and the vibration in the head portion 8 is generated. The fixing of the motor 13 is easily achieved. Further, the holder 20 is formed of an electrically insulating material, so that the helical coil antenna 10 and the vibration generating motor 13 do not exert an electric influence on each other.

A semi-cylindrical weight 18 is fixed to the tip of the output shaft 17 of the vibration generating motor 13, and the weight 18 is eccentrically fixed to the output shaft 17. Therefore,
By swinging the weight 18 by the rotational force of the output shaft 17, the body 18 of the motor 13 can be vibrated. Further, the vibration is transmitted to the head unit 8, and the housing 2 vibrates due to the vibration force of the head unit 8.

The vibration generating motor 13 is provided with a flange portion 19 on the weight 18 side of the body portion 14 in consideration of assembly workability. And the flange portion 19
When assembling the antenna 6, the inner wall surface 1 of the head 8 is
It is pressed against the contact surface 8a formed as a step on 2a. Therefore, by employing the flange portion 19 and the rubber holder 20, the vibration generating motor 13 and the helical coil antenna 10 can be easily loaded into the internal space of the head portion 8, and the assembling workability of the antenna 6 is improved. Become.

Further, the pole part 7 of the antenna 6 is
Is inserted into the antenna access opening 23 provided in the housing 2 to allow the housing 2 to enter and exit freely. The pole portion 7 is provided with plug terminals 21 and 22 for supplying power to the terminal portions 15 and 16 of the motor 13 so as to be arranged in the longitudinal direction (axial direction). Each plug terminal 21,
22 is connected to contact portions 21a and 22a which enable contact with the terminal portions 15 and 16, and the head portion 8
, And is exposed from the surface of the pole part 7.

On the other hand, a cylindrical socket portion 24 for supplying power to the plug terminals 5, 21, 22 is fixed to the housing 2 near the antenna entrance 23, and the socket portion 24 is , A pole part 7 which can be freely inserted and removed is inserted. The socket portion 24 is capable of supplying power to the motor 13 by contacting the plug terminals 21 and 22, and capable of supplying power to the helical coil antenna 10 by contacting the plug terminal 5. Are provided so as to be arranged in a line in the axial direction. And the socket terminals 25 and 26 are
Motor drive circuit 3 on circuit board S arranged in housing 2
0, and the socket terminal 27 is connected to the wireless transmission / reception circuit 31 on the circuit board S. The power supply to the circuit board S is performed by a battery provided in the housing 2.

As described above, the plug terminals 5, 21, 2,
As a result of disposing the pole portion 7 near the head portion 8, the plug terminals 5, 2
The socket terminals 25, 26, and 27 are disconnected from the socket terminals 25, 26, and 27 while the power supply to the vibration generating motor 13 is cut off and the pole section 7 is pushed into the housing 2. As a result, the plug terminals 5, 21, and 22 come into sliding contact with each other, so that power can be supplied to the vibration generating motor 13th stage. This is to prevent a situation in which even if the vibration generating motor 13 is vibrated in a state where the pole portion 7 is pulled out, the vibration is absorbed by the pole portion 7 and becomes difficult to be transmitted to the housing 2. In addition, such a configuration also takes into consideration that the pole unit 7 is normally used in a state of being pushed into the housing 2 in order to avoid bending when the radio wave arrives.

The vibration generating means applied to the antenna device and the portable radio device according to the present invention is not limited to the vibration generating motor 13 which generates vibrations by using a rotational motion as described above. For example, vibration may be generated using linear reciprocating motion by cooperation of a coil and a magnet. JP-A-10-174408 and JP-A-10-174408 disclose such a vibration generation technique.
There are JP-A-1-164540 and JP-A-11-332171.

When the vibration generating means is also provided in the housing 2, the vibration generating means 13 in the antenna 6 and the vibration generating means in the housing 2 can complement each other. As a result, the vibration of the housing 2 can be increased when the two vibration generating means are simultaneously operated by the user's selection, and when one of the vibration generating means is operated, the vibration of the housing 2 can be increased. Vibration can be reduced.

[0028]

Since the antenna device according to the present invention is configured as described above, the following effects are obtained. That is, in an antenna device attached to a portable wireless device to receive a predetermined radio wave, a head portion protruding from a housing of the portable wireless device, and a vibration portion which is arranged in the head portion and vibrates when a radio wave arrives is generated. With the provision of the means, the housing can be vibrated without being restricted by space in the housing of the portable wireless device.

Further, according to the portable radio apparatus of the present invention, in a portable radio apparatus in which an antenna for receiving a predetermined radio wave is attached to a housing, a head portion provided at a tip of the antenna and projected from the housing; And a vibration generating means that vibrates when a radio wave arrives, so that the housing can be vibrated without being restricted by space in the housing of the portable wireless device.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a portable wireless device according to the present invention.

FIG. 2 is an enlarged sectional view of a main part of the antenna device according to the present invention.

FIG. 3 is an enlarged sectional view of a main part of the portable wireless device shown in FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Mobile telephone (portable radio | wireless apparatus), 2 ... Housing | casing, 6 ... Antenna (antenna apparatus), 7 ... Pole part, 8 ... Head part,
DESCRIPTION OF SYMBOLS 10 ... Helical coil antenna, 13 ... Vibration generating motor (vibration generating means), 14 ... Body part, 20 ... Holder, 21
22 ... terminal (plug terminal), 25, 26 ... socket terminal.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04M 1/02 H01Q 1/24 Z // H01Q 1/24 H04B 7/26 109L F-term (Reference) 5J046 AA07 AB06 AB12 SA03 5J047 AA07 AB06 AB12 FA00 FA11 5K023 AA07 BB03 DD06 EE02 HH01 HH05 LL05 NN07 5K027 AA11 BB14 CC08 FF03 FF21 KK07 MM00 5K067 AA42 BB04 FF28 GG11 KK01

Claims (6)

[Claims] An antenna device attached to a portable wireless device for receiving a predetermined radio wave, wherein the head portion projects from a housing of the portable wireless device, and is arranged in the head portion to receive a radio wave. An antenna device comprising: a vibration generating unit that vibrates at times. 2. The antenna device according to claim 1, wherein a helical coil antenna is arranged around the vibration generating motor as the vibration generating means in the head portion. 3. The antenna device according to claim 2, wherein a holder is disposed between the body of the vibration generating motor and the helical coil antenna. 4. A pole portion extending from the head portion,
The antenna device according to any one of claims 1 to 3, wherein a terminal for supplying power to the vibration generating unit is provided near the head unit and exposed from a surface of the pole unit. 5. A portable wireless device in which an antenna for receiving a predetermined radio wave is attached to a housing, a head unit provided at a tip of the antenna and protruding from the housing, and disposed in the head unit; A portable wireless device comprising: a vibration generating means that vibrates when a radio wave arrives. 6. A plug terminal extending from the head portion and capable of entering and leaving the housing, a plug terminal for supplying power to the vibration generating means is provided proximate to the head portion and exposed from the surface of the pole portion. The portable wireless device according to claim 5, wherein a socket terminal that contacts the plug terminal is fixed to the housing.