JPH11177326A - Portable communication equipment and its antenna unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an antenna unit which uses an antenna element that can be stored in a small space and is hard to be broken nor bent and also to provide a portable communication equipment which uses the antenna unit and is highly operable to draw out the antenna element. SOLUTION: An antenna unit 1 uses a metallic thin wire especially a thin wire of a super-elastic alloy, a twist wire, a strand wire, a ribbon-shaped wire, etc., which have high elasticity in various external shapes as an antenna element 3. The unit 1 also has a take-up unit where a reel 2 is wound to store the element 3. A portable communication equipment is attached by the unit 1 so that the element 3 is drawn out under or besides a casing 4. Furthermore, those portable communication equipments are combined together.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna unit for transmitting and receiving radio waves, and a portable communication device used for transmission and reception such as a portable telephone, a simple portable telephone, a portable radio device, and a PDA. .

[0002]

2. Description of the Related Art Portable communication devices such as portable telephones, PHSs, and portable radios are widely used. In these portable communication devices for wireless communication, an antenna plays an important role in transmitting and receiving radio waves.

[0003] The antenna has a connection terminal for connecting a signal guided to the antenna to a conductor, a lead-out opening for stably fixing the antenna element to the housing when the antenna element is pulled out, and an antenna element for housing the antenna element. An antenna unit equipped with a holding fixture for preventing movement while being stored in the body is incorporated in a portable communication device.

A conventional antenna unit uses an antenna element 8 which is a single or a combination of a straight metal wire and a metal pipe, as shown in an example of a portable telephone shown in FIG.
When not in use, it is housed inside the housing, and when used, a whip antenna type is mainly used in which the pull-out knob is gripped from inside the housing 4 and pulled out above the housing for use.

[0005]

However, in the case of the conventional product, the antenna element used is a linear rigid body. A space that can accommodate the element element is required to the lower part.

When the length of the housing is shortened with the reduction in size and weight of the terminal, a space for accommodating a linear antenna element is provided inside the housing, so that miniaturization is very difficult. Depending on the specifications of the terminal, there is a structure in which the antenna element is slightly bent and stored, but the slidability at the time of storage is poor, and the antenna element is easily caught when stored, and the antenna element breaks or bends There's a problem.

Further, in the conventional portable communication device, as shown in FIG. 6, the outlet of the whip antenna is provided above the housing, and the antenna is pulled out while the antenna element is being pulled out above the housing. When it is necessary, the user has to pull it out with his vacant left hand, and it is necessary to temporarily remove the housing from his ear and pull it out, and there is an inconvenience that the call must be interrupted halfway.

[0008] In view of the above problems, an object of the present invention is to provide:
When the antenna element is housed inside the housing, the length of the housing part can be reduced, and the antenna unit using the antenna element that is hard to be broken or bent and a mobile communication with good operability using the antenna unit An object of the present invention is to provide an easy-to-use portable communication device for drawing out a device and an antenna element.

[0009]

Means for Solving the Problems In order to solve the above-mentioned problems, the present inventor has proposed that in a portable communication device, an antenna element is pulled out downward or to the side of a housing.
Wrap the antenna element around the antenna unit using an elastic metal thin wire of each shape, especially a superelastic alloy thin wire, a stranded thin wire, or a ribbon thin wire for the portable communication device with the antenna unit attached, and the antenna element. Provided are an antenna unit having a structure in which a reel-type take-up unit is provided and a portable communication device to which the antenna unit is attached.

That is, the present invention relates to an antenna unit having a rod-shaped antenna element mounted on a portable communication device or the like and used for transmitting and receiving an electric signal, wherein the antenna unit has a winding unit for winding an antenna element portion around a reel. Unit.

Further, the present invention is an antenna unit using a thin linear metal wire for an antenna element portion of the above antenna unit.

Further, the present invention is an antenna unit using a stranded metal thin wire for an antenna element portion of the antenna unit.

Further, the present invention is an antenna unit using a ribbon-shaped thin metal wire for an antenna element portion of the above antenna unit.

Further, the present invention is the antenna unit, wherein the thin metal wire of the antenna element portion of the antenna unit is made of a superelastic thin metal wire.

Further, the present invention is a portable communication device equipped with the above-mentioned antenna unit.

Further, the present invention relates to a portable communication device,
An antenna unit is a portable communication device in which a direction in which the antenna unit is pulled out is provided toward a lower side of a housing.

Further, the present invention relates to a portable communication device,
This is a portable communication device in which the antenna unit is provided with its pullout direction directed to the side of the housing.

Further, the present invention provides a portable communication device,
This is a portable communication device in which the antenna unit is rotatably provided so that the antenna unit can be set in any direction between the lower side and the side of the housing.

The present invention also relates to the above-mentioned portable communication device, wherein the antenna unit is provided such that the antenna unit extends downward from the housing.

According to the present invention, there is provided the portable communication device according to the above portable communication device, wherein the antenna unit is provided so that the antenna unit is drawn out toward the side of the housing.

Further, according to the present invention, in the portable communication device, the antenna unit is provided rotatably so that the drawing direction thereof can be set in any direction between the lower side and the side of the housing. Portable communication device.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a portable communication device of the present invention and an antenna unit used for the portable communication device will be described.

According to the present invention, in a portable communication device, a thin wire having various shapes of a metal having high elasticity, particularly a thin wire of a superelastic alloy, a thin wire of a twisted wire, a thin wire of a ribbon, or the like is used for an antenna element. In order to accommodate these antenna elements, an antenna unit having a reel-type winding unit for winding the antenna element is attached, a portable communication device to which the antenna unit is attached, and a draw-out direction of the antenna element. A portable communication device to which an antenna unit is attached so as to be directed downward or to the side of the body or in the middle thereof, and a portable communication device in which the above-described portable communication device is combined.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments will be specifically described below with reference to the drawings. In this embodiment, a description will be given using a mobile phone.

FIG. 1 is a front view showing a partial cross section of a portable telephone according to an embodiment of the present invention in a state in which an antenna element is housed. A linear thin wire made of a TiNi superelastic alloy is used for the antenna element. An example is shown in which an antenna unit is mounted and a draw-out opening for an antenna element is provided below the housing.

FIG. 2 is a front view showing a partial cross section of the mobile phone shown in FIG. 1 in a state where an antenna element is pulled out.

FIG. 3 is a front view showing a partial cross-section of a mobile phone according to another embodiment of the present invention in a state where an antenna element is pulled out, in which a super-elastic alloy thin wire is used in a twisted state for the antenna element. Is shown.

FIG. 4 is a front view showing a partial cross section of a mobile phone antenna element according to another embodiment of the present invention in a state where the antenna element is pulled out, and shows an example in which a ribbon-like thin line of a superelastic alloy is used for the antenna element.

FIG. 5 is a front view showing a partial cross section of a portable telephone according to another embodiment of the present invention in a state in which the antenna element is housed. Show.

The first embodiment is a portable telephone equipped with an antenna unit 1 using a thin wire 5 of a TiNi superelastic alloy as an antenna element 3, as shown in FIGS. As the fine wire 5 of the superelastic alloy, a fine wire having a diameter of 0.4 mm was used. As a winding unit for winding and storing the antenna element 3, the outside of the reel 2 is covered with a cover (not shown) with a predetermined gap, and the inner end of the antenna element 3 is Can be pulled out by holding the pull-out knob 9 provided at the tip of the antenna element 3 and pulling it under the housing 4. The pulled-out antenna element 3 can be easily stored by holding the pull-out knob 9 and pushing it toward the housing. The take-up unit is fixed so that the drawer port faces downward of the housing. With the other hand holding the housing, it can be easily pulled out to improve the reception sensitivity without interruption during transmission / reception.

In the second embodiment, as shown in FIG. 3, a twisted wire 6 made of a TiNi superelastic alloy is used for the antenna element. In this embodiment, the stranded thin wire is 0.15 m.
It is a stranded wire 6 of a TiNi-based superelastic alloy obtained by twisting seven m wires. As a result, the operability was further improved as compared with Example 1, and the storage was possible without damage even if the pushing direction at the time of storage slightly shifted.

In the third embodiment, as shown in FIG. 4, the antenna element 3 is replaced with a TiNi-based superelastic alloy thin wire.
This is an example using a ribbon-shaped TiNi-based superelastic alloy thin wire 7. In this embodiment, the ribbon-shaped fine wire has a thickness of 0.2 m.
m and a width of 2 mm were used. As a result, the operability was improved as compared with the first embodiment, and the storage space at the time of storage was further reduced, and the size was reduced. .

In the fourth embodiment, as shown in FIG. 5, the outlet of the antenna element 3 is provided on the side of the housing 4, so that it is not interrupted during a call as in the first embodiment.
The portable communication device with good operability was provided because the antenna element can be freely taken in and out.

In the fifth embodiment, the position of the pull-out knob 9 in FIG. 5 is changed from the position of the pull-out knob 9 in FIG.
The antenna unit is rotatably mounted so that the antenna unit can be freely set at a position between the lower side and the side of the housing.
Correspondingly, the housing is cut from the lower surface to the side surface. As a result, the antenna element could be pulled out in a desired direction from below to the side, and the operability was very good.

In the above description, as the antenna element, a thin wire, a stranded wire, and a ribbon wire of TiNi superelastic alloy, which is a superelastic material, are used. Any fine wire made of a metal material having high elasticity may be used, and the effects of the present invention can be obtained.
In particular, by using a TiNi-based superelastic alloy material, the durability and operability are further improved, the diameter of the thin wire of the antenna element can be reduced, and the size can be further reduced.

The winding unit has a structure in which a cover is provided on the outer periphery and the winding unit is manually wound by the elasticity of the antenna element. However, the present invention is not limited to this. However, the same effect can be obtained.

[0037]

As described above, according to the present invention, when the antenna element is stored in the antenna unit,
It has a take-up unit that can take up the antenna element on the reel, and by using a thin metal wire with excellent elasticity as the antenna element, the length of the storage part of the antenna element can be reduced. By using a wire made of a high superelastic alloy, operability is improved without further breakage, no bending tendency. In addition, by using this antenna unit, it is possible to reduce the size of the portable communication device, and pull out the antenna element downward, sideways, or
Since the setting can be made in the middle direction, an easy-to-use portable communication device can be provided.

[Brief description of the drawings]

FIG. 1 is a front view showing a partial cross section of a state in which an antenna element of a mobile phone according to an embodiment of the present invention is stored.

FIG. 2 is a front view showing a partial cross section of the mobile phone shown in FIG. 1 in a state where an antenna element is pulled out.

FIG. 3 is a front view showing a partial cross section of a mobile phone according to another embodiment of the present invention in a state where an antenna element is pulled out.

FIG. 4 is a front view showing a partial cross-section of a state in which a mobile phone antenna element of another embodiment of the present invention is drawn.

FIG. 5 is a front view showing a partial cross section of a state where a mobile phone antenna element according to another embodiment of the present invention is housed.

FIG. 6 is a front view showing a partial cross section of a state in which an antenna element of a conventional mobile phone is pulled out.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 antenna unit 2 reel 3 antenna element 4 housing 5 thin wire of TiNi-based superelastic alloy 6 twisted wire of TiNi-based superelastic alloy 7 ribbon-shaped TiNi-based superelastic alloy thin wire 8 conventional antenna element 9 pull-out knob

Claims (12)

[Claims] 1. An antenna unit having a rod-shaped antenna element mounted on a portable communication device or the like and used for transmitting and receiving an electric signal, comprising a winding unit for winding an antenna element portion around a reel. Antenna unit. 2. An antenna unit according to claim 1, wherein a thin metal wire is used for an antenna element portion of the antenna unit according to claim 1. 3. An antenna unit according to claim 1, wherein a thin stranded metal wire is used for an antenna element portion of the antenna unit according to claim 1. 4. An antenna unit according to claim 1, wherein a ribbon-shaped thin metal wire is used for an antenna element portion of the antenna unit. 5. The antenna unit according to claim 2, wherein the thin metal wire of the antenna element portion of the antenna unit according to claim 2 is formed of a superelastic thin metal wire. 6. A portable communication device equipped with the antenna unit according to claim 1. Description: 7. The portable communication device according to claim 1, wherein the antenna unit is provided so that a drawing direction of the antenna unit is directed downward of the housing. 8. The portable communication device according to claim 1, wherein the antenna unit is provided with a draw-out direction directed toward a side of the housing. 9. The portable communication device is characterized in that the antenna unit is rotatably provided so that the direction in which the antenna unit is pulled out can be set in any direction between the lower side and the side of the housing. Portable communication equipment. 10. The portable communication device according to claim 6, wherein the antenna unit is provided such that a direction in which the antenna unit is pulled out is directed downward of the housing. 11. The portable communication device according to claim 6, wherein the antenna unit is provided so that a drawing direction of the antenna unit is directed toward a side of the housing. 12. The portable communication device according to claim 6, wherein the antenna unit is rotatably provided so that the direction in which the antenna unit is pulled out can be set in any direction between the lower side and the side of the housing. A portable communication device characterized by the following.