JP2002217755A - Portable radio equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the transmission reception sensitivity without the need for any special work to part an antenna element from an enclosure. SOLUTION: The portable radio equipment 1 is configured such that a 1st casing 4 with built-in radio equipment 6 and having a 1st connection section 8 electrically connected to the radio equipment 6 and a 2nd casing having an antenna element 9 and a 2nd connection section 10 electrically connected to the antenna element 9 are connected in a way that the 2nd connection section 10 freely takes a connection position at which the 2nd connection section 10 is electrically connected to the 1st connection section 8 or a interruption position at which the 2nd connection section 10 is electrically disconnected from the 1st connection section 8. Thus, in the case of using the portable radio equipment, the 2nd casing 5 is shifted to the connection position to electrically connect the 1st connection section 8 to the 2nd connection section 10 thereby electrically connecting the radio equipment 6 to the antenna element 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a portable radio device.

[0002]

2. Description of the Related Art For example, there is a portable wireless device in which a wireless device for transmitting and receiving information to and from an external device is provided in a small portable casing.

[0003] A portable wireless device is provided with an antenna element connected to the wireless device in order to perform good wireless communication with an external device.

In general, the transmission / reception performance of radio waves is higher when the antenna element is outside the casing than when it is housed inside the casing. On the other hand, when the antenna element is outside the casing even when not in use, it is inconvenient to store the antenna element.

[0005] For this reason, the antenna member having the antenna element is configured to be extendable / storable with respect to the casing,
In use, there is a portable wireless device in which an antenna member is extended from a casing to separate an antenna element from a casing as much as possible. When not in use, unnecessary antenna members are housed in the casing to facilitate handling.

However, in the above-mentioned portable radio apparatus, since the antenna member is extended / stored each time it is used, there is a concern that the operation becomes complicated. In particular, in a portable wireless device in which the casing is foldable by a hinge, it is necessary to open the casing and extend the antenna each time it is used, and there is a concern that the operation becomes complicated. .

Therefore, for example, Japanese Patent Application Laid-Open No. 9-27707 discloses an antenna housing structure in which an antenna member is extended / accommodated with opening / closing of a casing which can be folded by a hinge. According to the technique disclosed in the publication, the antenna member can be extended / stored as the casing is opened / closed, so that the operation can be facilitated.

Further, as disclosed in, for example, Japanese Patent Application Laid-Open No. 10-13286, a rod-shaped antenna member having antenna elements attached to both ends and capable of being extended / stored from a main body, and a narrower antenna element. 2. Description of the Related Art There are an antenna device and a portable wireless device in which a dielectric is attached between an antenna member and a metal member to be connected to a main body by holding the antenna member.
According to the technology disclosed in the publication, since direct contact between the antenna element and the metal member is prevented, it is possible to suppress wear of the antenna element and the metal member.

[0009]

SUMMARY OF THE INVENTION However, Japanese Patent Application Laid-Open No.
In the portable wireless device having the antenna housing structure disclosed in Japanese Patent No. 27707, the antenna element is always located outside the casing, so that the antenna element may be damaged.

Similarly, in the antenna device and the portable wireless device disclosed in Japanese Patent Application Laid-Open No. H10-13286, one antenna element is exposed when the antenna member is extended from the casing. There is a concern that the element may be damaged.

[0011] Due to the damage of the antenna element as described above, the contact resistance at the contact portion connecting the antenna element and the wireless device increases, and power loss occurs.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a portable wireless device capable of improving transmission / reception sensitivity without performing extra work for separating an antenna element from a housing.

[0013]

According to a first aspect of the present invention, there is provided a portable wireless device having a housing-shaped first portion having a built-in wireless device and having a first connection portion electrically connected to the wireless device. And a second casing having an antenna element and a second connection portion electrically connected to the antenna element, wherein the second casing is, with respect to the first casing, A connection position where the first connection portion and the second connection portion are electrically connected, and a cut-off position where the first connection portion and the second connection portion are electrically disconnected. Displaceably connected.

Therefore, in use, the wireless device and the antenna element are electrically connected by displacing the second casing to the connection position and electrically connecting the first connection portion and the second connection portion. Connect to This allows, for example,
A portable wireless device that requires displacement to the connection position of the second casing when used, such as a foldable mobile phone or a graphic terminal. Transmission / reception without performing extra work to separate the antenna element from the housing. The sensitivity can be improved.

According to a second aspect of the present invention, in the portable wireless device according to the first aspect, the first connection portion includes a first conductor electrically connected to the wireless device and the first conductor. The second connection part is electrically connected to the antenna element, and the second connection part is electrically connected to the antenna element.
Is a second conductor that contacts the dielectric when the casing is at the connection position.

Therefore, in use, by displacing the second casing to the connection position, a capacitor is formed by the first conductor, the dielectric and the second conductor. This makes it possible to electrically connect the first conductor and the second conductor and electrically connect the wireless device and the antenna element. In addition, the first and second conductors, which are generally made of metal, are electrically connected via a dielectric, which is often made of a highly insulating polymer material, so that they are in direct contact with each other. This makes it possible to prevent the first and second conductors from being worn away. Further, by electrically connecting the wireless device and the antenna element via a capacitor, it is possible to stabilize transmission of a high-frequency signal related to data transmission and reception.

According to a third aspect of the present invention, in the portable wireless device according to the first aspect, the first connection unit includes a first conductor electrically connected to the wireless device and the first conductor. A first dielectric member attached to and partially exposed from the first casing;
Is connected to the second conductor by exposing a part of the second conductor electrically connected to the antenna element from the second casing and attaching the second casing to the connection position. And the second dielectric contacting the first dielectric.

Therefore, in use, by displacing the second casing to the connection position, a capacitor is formed by the first conductor, the first dielectric, the second conductor, and the second dielectric. This makes it possible to electrically connect the first and second dielectrics and electrically connect the wireless device and the antenna element. In addition, the first and second conductors, which are generally formed of a metal, are electrically connected via a dielectric, which is often formed of a polymer material having a high insulating property, so that they are in direct contact with each other. Thus, it is possible to prevent the first and second conductors from being worn away. Further, by attaching the first and second dielectrics to the first and second conductors, respectively, the first and second conductors are not exposed to the outside, so that the first and second conductors can be protected. Will be possible.

According to a fourth aspect of the present invention, in the portable wireless device of the first, second or third aspect, the first casing and the second casing are rotatably connected to each other by a hinge. .

Therefore, in use, the second casing is displaced to the connection position by rotating the second casing about the hinge. Thereby, in practice, it is possible to facilitate the electrical connection between the first connection portion and the second connection portion.

According to a fifth aspect of the present invention, in the portable radio device according to the first, second or third aspect, the first casing and the second casing are connected to the first connecting portion and the second casing. The connection portion is slidably connected in a direction substantially orthogonal to a direction in which the connection portion is electrically connected.

Therefore, in use, the second casing is slid with respect to the first casing to be displaced to the connection position. Thereby, in practice, it is possible to facilitate the electrical connection between the first connection portion and the second connection portion.

According to a sixth aspect of the present invention, there is provided a portable wireless device, comprising: a first casing having a casing shape having a wireless device, a first connection portion, and a first antenna element; a second antenna element; A second connection portion electrically connected to the element, a connection position at which the first connection portion and the second connection portion are electrically connected, the first connection portion; A second casing displaceable to a blocking position where the second connection portion is electrically disconnected from the second casing, and an output when the second casing is at the connection position and when the second casing is at the blocking position. , Which can be displaced between a position where the first connection portion is electrically connected to the wireless device and a position where the first antenna element is electrically connected to the wireless device. Switch according to the output value of the state detection sensor Comprising a displacement means for selectively displacing the position of the replacement switch, the.

Therefore, in use, the position of the changeover switch is displaced by the displacing means in accordance with the output of the state detection sensor which changes depending on whether the second casing is in the connection position or the cutoff position. Accordingly, the wireless device and the first connection unit, or the wireless device and the first antenna element are electrically connected. As a result, it is possible to select an antenna element to be used in accordance with the mode of use without performing any special operation.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. This embodiment shows an example in which the present invention is applied to a graphic terminal as a portable wireless device.

The graphic terminal is used, for example, for inventory management of merchandise in a store such as an inventory work at a retail store such as a supermarket, and is installed in a place other than the store such as an office. Wireless communication with the host computer.

In the present embodiment, the detailed appearance of the graphic terminal, the detailed internal mechanism of the graphic terminal, and various controls executed in the graphic terminal are well-known technologies, and therefore, description thereof will be omitted. .

FIG. 1 is a schematic plan view showing the inside of a graphic terminal according to a first embodiment of the present invention, and FIG. 2 is a schematic view showing the inside of the graphic terminal from the side.

The casing 2 of the graphic terminal 1
Is composed of a first casing 4 and a second casing 5 rotatably connected by a hinge 3.

The first casing 4 is formed of a metal material. This prevents the strength against direct gripping by the operator and prevents a radio wave from being applied from the outside of the first casing 4 by the human body to directly affect a later-described wireless device 6 and the like when the operator directly grips. can do.

In the first casing 4, a wireless device 6 is incorporated. Although a detailed description is omitted because it is a known technique, the wireless device 6 has a receiving function of receiving high-frequency energy transmitted from the outside via an antenna element 9 described later, And a transmission function for transmitting the data to the outside via the external device.

In the first casing 4, a first conductor 7 electrically connected to the radio device 6 is provided. The first conductor 7 is provided with the other end surface of the dielectric 8 as a first connection portion having one end surface exposed outward from the first casing 4. One end surface of the dielectric 8 is electrically connected to the first conductor 7. Although the description is omitted because it is a known technique, the dielectric 8 is formed of a polymer material having high insulating properties.

An antenna element 9 is provided in the second casing 5 as a second connection part for transmitting and receiving a high-frequency signal transmitted from the outside. The form of the antenna element 9 may be any form such as an inverted-F antenna, a helical antenna, a strip antenna, etc., as long as it is attached to the second casing 5.

The second conductor 10 is electrically connected to the antenna element 9. The second conductor 10 has a surface opposite to the side electrically connected to the antenna element 9
The casing 5 is provided in a state of being exposed to the outside.

The graphic terminal 1 is moved from the state shown in FIG.
By rotating the second casing 5 and the second casing 5 in a direction away from each other, the casing 5 is positioned at a connection position as shown in FIG.

The first conductor 7, the dielectric 8 and the second conductor 10 are arranged so as to be overlapped in one direction with the graphic terminal 1 at the connection position with respect to the first or second casing 5, respectively. It is provided in a positional relationship.

Thus, when the graphic terminal 1 is at the connection position, the second conductor 10 abuts on the dielectric 8, and as shown in FIG. 3, the first conductor 7, the dielectric 8 and the second The conductor 10 forms a capacitor CD.

Here, the capacitance C of the capacitor CD formed by positioning the casing 2 at the connection position.
Can be obtained by the following equation. C = εS / d, where ε: dielectric constant of the dielectric, S: area where the first conductor and the second conductor overlap, d: distance between the first conductor and the second conductor

When the graphic terminal 1 is not used, for example, when it is stored, the first casing 4 and the second casing 5 are rotated about the hinge 3 from the state shown in FIG. By doing so, it is positioned at the blocking position as shown in FIG.

Thus, when the graphic terminal 1 is in the cutoff position, the second conductor 10 and the dielectric 8 are separated from each other, and the first and second conductors 7 and 10 are electrically disconnected. You.

In addition, although not particularly shown, the graphic terminal 1 has a control system for driving and controlling each unit provided in the graphic terminal 1. LC described above
D, the touch panel, the wireless device 6 and the like are driven and controlled by a control system.

In such a configuration, when the graphic terminal 1 is used, the first and second casings 4 and 5 are pivoted about the hinge 3 in directions away from each other, as shown in FIG. The connection position. As a result, as shown in FIG.
, The first conductor 7, the dielectric 8 and the second conductor 1
0 forms a capacitor CD, and the antenna element 9
And the wireless device 6 are electrically connected.

When receiving data, a high-frequency signal transmitted from the outside is induced in the antenna element 9. Since the first conductor 7 and the second conductor 10 are electrically connected via the dielectric 8, a high-frequency signal induced in the antenna element 9 is input to the wireless device 6.

The high-frequency signal input to the wireless device 6 is converted into a digital signal, and the control system drives and controls each unit included in the graphic terminal 1 according to the signal.

When transmitting data, data is output from radio device 6 to antenna element 9. Since the first conductor 7 and the second conductor 10 are electrically connected via the dielectric 8, data output from the wireless device 6 is transmitted from the antenna element 9 as a high frequency signal via the capacitor CD. Radiated to the outside.

When the graphic terminal 1 is not used, the first and second casings 5 are pivoted about the hinge 3 in a direction in which the first and second casings 5 come into contact with each other, and set to the shut-off position shown in FIG. Thereby, the second conductor 10 and the dielectric 8 are separated from each other, and the first and second conductors 7 and 10 are electrically disconnected.

Here, in a graphic terminal 1 such as a foldable graphic terminal 1 which requires displacement when used, the transmission / reception sensitivity can be reduced without performing any extra work to separate the antenna element 9 from the housing. Can be improved.

Also, a first metal layer generally formed of metal
And the second conductors 7 and 10 are electrically connected to each other via a dielectric 8 formed of a polymer material having a high insulating property, whereby the first and second conductors 7 and 10 are brought into direct contact with each other. , 10 can be prevented.

Further, by electrically connecting the radio device 6 and the antenna element 9 via the capacitor CD,
High frequency signals related to data transmission / reception can be transmitted stably.

In this embodiment, the foldable graphic terminal 1 has been described. However, the present invention is not limited to this, and may be applied to, for example, a foldable mobile phone.

Next, a second embodiment of the present invention will be described with reference to FIG. The present embodiment is different from the first embodiment in that a dielectric is attached to the second conductor 10 provided in the second casing 5. The same parts as those in the first embodiment are denoted by the same reference numerals, and the description is omitted.

FIG. 4 is a schematic plan view showing the inside of a graphic terminal according to a second embodiment of the present invention. The first conductor 7 provided on the first casing 4 of the graphic terminal 11 of the present invention is provided with a first dielectric 12.

In the second casing 5, a second conductor 10 electrically connected to the antenna element 9 is provided. The second conductor 10 is provided with a second dielectric 13 partially exposed to the outside from the second casing 5.
In the present embodiment, a second connection portion is realized by the second dielectric 13. Although the description is omitted because it is a known technique, the first and second dielectrics 12 and 13 are formed of a polymer material having high insulating properties.

The first conductor 7, the first dielectric 12, the second conductor 10, and the second dielectric 13 are connected to the first or second casing 5 by the graphic terminal 11 at the connection position. They are provided in a positional relationship such that they overlap in one direction in a certain state. Thereby, when the graphic terminal 11 is at the connection position, the second dielectric 13 and the first dielectric 12 come into contact with each other, and the first conductor 7,
A capacitor is formed by the first dielectric 12, the second conductor 10, and the second dielectric 13, and the antenna element 9 and the wireless device 6 are electrically connected.

Here, the capacitance C of the capacitor CD formed by positioning the casing 2 at the connection position can be obtained by the following equation. C = εS / d ′, where ε: dielectric constant of the dielectric, S: area where the first conductor and the second conductor overlap, d ′: distance between the first conductor and the second conductor

When the graphic terminal 11 is at the cutoff position, the first dielectric 12 and the second dielectric 13 are separated from each other, and the first and second conductors 7 and 10 are electrically disconnected. Is done. As a result, the antenna element 9 and the wireless device 6 are electrically disconnected.

In such a configuration, when the graphic terminal 11 is used, the first and second casings 5 are pivoted about the hinge 3 in directions away from each other to set the connection position (FIG. 2A). reference). As a result, the first dielectric 12 and the second dielectric 13 come into contact with each other, and the first conductor 7, the first dielectric 12, and the second conductor 10
A capacitor is formed by the second dielectric 13 and the antenna element 9 is electrically connected to the wireless device 6.

When the graphic terminal 11 is not used, the first and second casings 5 are turned around the hinge 3 in a direction in which the first and second casings come into contact with each other, so that the first and second casings 5 are brought into the shut-off position (see FIG. 2B). As a result, the first dielectric 12 and the second dielectric 13 are separated from each other, and the first and second conductors 7 and 10 are electrically disconnected.

Thus, the first and second conductors 7 and 10 which are generally formed of a metal are replaced with the first and second dielectrics 1 and 2 which are formed of a highly insulating polymer material.
By electrically connecting via the terminals 2 and 13, the same effect as in the first embodiment can be obtained.

The first and second dielectrics 12, 13
The first and second conductors are brought into direct contact by electrically connecting the first conductor 7 and the second conductor 10 via
Of the conductors 7 and 10 can be prevented.

Further, by attaching the first and second dielectrics 12 and 13 to the first and second conductors 7 and 10, respectively, the first and second conductors 7 and 10 are not exposed to the outside. The first and second conductors 7, 10 can be protected.

Next, a third embodiment of the present invention will be described with reference to FIG. The present embodiment is different from the first embodiment in that the first casing 4 and the second casing 5 are relatively slidable.

FIG. 5 is a schematic view showing the inside of a graphic terminal according to a third embodiment of the present invention from the side. First casing 4 of graphic terminal 21
And the second casing 5 along the left-right direction in FIG.
It is relatively slidable.

The dielectric 8 is provided on the upper surface of the first casing 4.
It is provided so that a part thereof is exposed from (upper side of the paper surface in FIG. 5). The second conductor 10 is provided on the lower surface of the second casing 5.
It is provided such that a part thereof is exposed from below (the lower side of the paper in FIG. 5).

The graphic terminal 21 is shown in FIG.
5A is slid from the state shown in FIG. 5A to the connection position.

The first conductor 7, the dielectric 8 and the second conductor 10 are arranged so as to overlap the first or second casing 5 in one direction with the graphic terminal 21 at the connection position. It is provided in a positional relationship.

Thus, the graphic terminal 21
Is in the connection position, the second conductor 10 is
5A, a capacitor CD is formed by the first conductor 7, the dielectric 8 and the second conductor 10, as shown in FIG.

When the graphic terminal 21 is not used, for example, when stored, the graphic terminal 21 is slid from the state shown in FIG. 5A to the position shown in FIG.

Thus, the graphic terminal 21
Is in the blocking position, the second conductor 10 and the dielectric 8
Are separated from each other, and the first and second conductors 7 and 10 are electrically disconnected.

In such a configuration, when the graphic terminal 21 is used, the first and second casings 4, 5 are slid in directions away from each other,
The connection position shown in FIG.

As a result, as shown in FIG. 5A, the second conductor 10 comes into contact with the dielectric 8, and the first conductor 7, the dielectric 8 and the second conductor 10 form a capacitor CD. , The antenna element 9 and the wireless device 6 are electrically connected.

When the graphic terminal 1 is not used, the first and second casings 4 and 5 are slid in a direction away from each other to set the blocking position shown in FIG. 5B.

Thus, the second conductor 10 and the dielectric 8
Are separated from each other, and the first and second conductors 7 and 10 are electrically disconnected.

Next, a fourth embodiment of the present invention will be described. In the present embodiment, the first casing 4 and the second casing 4
Is different from the second embodiment in that the casing 5 is relatively slidable.

Although not particularly shown, the dielectric 8 is provided so as to be exposed from the upper surface of the first casing 4, and the second dielectric 13 is provided so as to be exposed from the lower surface of the second casing 5.

The first conductor 7, the first dielectric 12, the second conductor 10 and the second dielectric 13 are arranged such that the casing 2 is connected to the first or second casing 5, respectively. In this state, they are provided in such a positional relationship as to overlap in one direction.

In such a configuration, when using the graphic terminal, the first and second casings 4 and 5 are slid to the connection position (see FIG. 5A). Thereby, the first conductor 7, the first dielectric 12, the second conductor 10, and the second dielectric 1 can be easily operated.
3 forms a capacitor CD.

Next, a fifth embodiment of the present invention will be described with reference to FIG. This embodiment is different from the first embodiment in that a plurality of antenna elements are provided, and the antenna element to be used can be selected according to the situation.

FIG. 6 is a schematic plan view showing the inside of a graphic terminal according to a fifth embodiment of the present invention. First casing 4 of graphic terminal 31
Inside, a first antenna element 32 for transmitting and receiving a high-frequency signal transmitted from the outside is provided in addition to the radio apparatus 6, the first conductor 7, and the dielectric body 8. A changeover switch 33 is provided between the wireless device 6 and the first conductor 7 or the first antenna element 32. The changeover switch 33 is provided to be displaceable between a position where the wireless device 6 is electrically connected to the first conductor 7 and a position where the wireless device 6 is electrically connected to the first antenna element 32. I have.

Further, on the same surface as the one end surface of the first casing 4 where the dielectric 8 is exposed, a reflection type optical sensor 34 as a state detection sensor is provided. Reflection type optical sensor 3
4 changes the output depending on whether the graphic terminal 31 is in the connection position or in the cut-off position. In the present embodiment, the output value from the reflection type optical sensor 34 when the graphic terminal 31 is at the connection position is ON,
The output value from the reflection type optical sensor 34 in a state where the graphic terminal 31 is at the cutoff position is turned off.

In the second casing 5, a second antenna element 3 for transmitting and receiving a high frequency signal transmitted from the outside is provided.
5 are provided.

The second conductor 10 is electrically connected to the second antenna element 35. The second conductor 10 is provided in a state where the surface opposite to the side electrically connected to the second antenna element 35 is exposed outward from the second casing 5.

The first conductor 7, the dielectric 8 and the second conductor 10 are arranged so as to overlap in one direction with the casing 2 at the connection position with respect to the first or second casing 5, respectively. It is provided in a positional relationship.

In addition, in the present embodiment, the changeover switch 33 and the reflection type optical sensor 34 are also connected to a control system (not shown). The control system electrically connects the position where the wireless device 6 is electrically connected to the first antenna element 32 and the position where the wireless device 6 is electrically connected to the first antenna element 7 according to the output change of the reflection type optical sensor 34. The changeover switch 33 is displaced to the position to be performed. Here, the function as the displacement means is executed by the control system.

In such a configuration, when the graphic terminal 31 is at the blocking position, in this embodiment, the output value from the reflection type optical sensor 34 is turned on, and
The changeover switch 33 is connected to the wireless device 6 and the first antenna element 3
2 is displaced to a position where it is electrically connected. As a result, the wireless device 6 and the first antenna element 32 are electrically connected.

In this state, when data is received, a high-frequency signal transmitted from the outside is transmitted to the first antenna element 32.
And input to the wireless device 6 via the changeover switch 33.

When transmitting data, data is output from the wireless device 6 to the first antenna element 32 via the changeover switch 33, and is radiated to the outside from the first antenna element 32 as a high-frequency signal. .

When the graphic terminal 31 is at the connection position, the output value from the reflection type optical sensor 34 is OFF.
The switch 33 is displaced to a position where the wireless device 6 and the first conductor 7 are electrically connected. As a result, a capacitor is formed by the first conductor 7, the dielectric 8, and the second conductor 10, and the wireless device 6 and the first antenna element 32 are electrically connected.

When receiving data, a high-frequency signal transmitted from the outside is induced in the second antenna element 35. Since the first conductor 7 and the second conductor 10 are electrically connected via the dielectric 8, the second antenna element 3
The high-frequency signal induced in 5 is input to wireless device 6.

When transmitting data, data is output from wireless device 6 to second antenna element 35. Since the first conductor 7 and the second conductor 10 are electrically connected via the dielectric 8, data output from the wireless device 6 is radiated to the outside from the second antenna element 35 as a high-frequency signal. Is done.

Here, in accordance with the output of the state detection sensor which changes depending on whether the second casing 5 is at the connection position or the blocking position, the changeover switch 33 switches the radio device 6 and the first antenna element 32 Or the wireless device 6 and the second
Is electrically connected to the antenna element 35. As a result, it is possible to select and use a better antenna element 9 according to the mode of use without performing any special operation.

[0092]

According to the portable wireless device of the first aspect of the present invention, in use, the second casing is displaced to the connection position to electrically connect the first connection portion and the second connection portion. By electrically connecting the wireless device and the antenna element, a portable wireless device requiring displacement to the connection position of the second casing in use, such as a foldable mobile phone or a graphic terminal, is used. With the device, the transmission / reception sensitivity can be improved without performing any special operation for separating the antenna element from the housing.

According to the second aspect of the present invention, in the portable wireless device according to the first aspect, when the second casing is displaced to the connection position during use, the first conductor, the dielectric, and the second 2. The first conductor and the second conductor are electrically connected by forming a capacitor with the conductor, so that the wireless device and the antenna element can be electrically connected. The effect of the invention can be obtained. In addition, the first and second conductors, which are generally made of metal, are electrically connected via a dielectric, which is often made of a highly insulating polymer material, so that they are in direct contact with each other. This can prevent the first and second conductors from being worn away. Furthermore, by electrically connecting the wireless device and the antenna element via a capacitor, it is possible to stabilize transmission of a high-frequency signal related to data transmission and reception.

According to the third aspect of the present invention, in the portable wireless device according to the first aspect, when the second casing is displaced to the connection position in use, the first conductor and the first dielectric are connected to each other. By forming a capacitor with the second conductor and the second dielectric, the first and second dielectrics can be electrically connected, and the wireless device and the antenna element can be electrically connected. Therefore, the effect of the invention described in claim 1 can be obtained. In addition, the first and second conductors, which are generally formed of a metal, are electrically connected via a dielectric, which is often formed of a polymer material having a high insulating property, so that they are in direct contact with each other. This can prevent the first and second conductors from being worn away. Further, by attaching the first and second dielectrics to the first and second conductors, respectively, the first and second conductors are not exposed to the outside, so that the first and second conductors can be protected. it can.

According to the invention described in claim 4, according to claim 1,
In the portable wireless device according to 2 or 3, in use, the second casing is rotated around the hinge to be displaced to the connection position, so that the first connection portion and the second connection portion are practically used. Electrical connection can be facilitated.

According to the fifth aspect of the present invention, the first aspect has the following features.
In the portable wireless device according to 2 or 3, in use, the second casing is slid with respect to the first casing to be displaced to the connection position, so that practical use is achieved.
The electrical connection between the first connection portion and the second connection portion can be facilitated.

According to the portable radio apparatus of the present invention, in use, the displacement is changed according to the output of the state detection sensor which changes depending on whether the second casing is at the connection position or the cut-off position. Means for displacing the position of the changeover switch to electrically connect the wireless device to the first connection portion or the wireless device to the first antenna element for use without performing any special operation. The antenna element to be used can be selected according to the mode. Thus, an easy-to-use portable wireless device can be provided.

[Brief description of the drawings]

FIG. 1 is a plan view schematically showing the inside of a graphic terminal according to a first embodiment of the present invention.

FIG. 2 is a schematic diagram showing the inside of the graphic terminal from the side.

FIG. 3 is a block diagram showing a part of a graphic terminal.

FIG. 4 is a schematic plan view showing the inside of a graphic terminal according to a second embodiment of the present invention;

FIG. 5 is a schematic diagram showing the inside of a graphic terminal according to a third embodiment of the present invention from the side.

FIG. 6 is a plan view schematically showing the inside of a graphic terminal according to a fifth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Portable radio apparatus 3 Hinge 4 1st casing 5 2nd casing 6 Radio apparatus 7 1st conductor 8 Dielectric, 1st connection part 9 Antenna element 10 2nd conductor, 2nd connection part 11 Portable radio Apparatus 13 Second dielectric, second connection part 21 Portable wireless device 31 Portable wireless device 32 First antenna element 33 Changeover switch 34 State detection sensor 35 Second antenna element

Claims (6)

[Claims] A first casing having a housing and having a first connection portion electrically connected to the wireless device, an antenna element, and an antenna element electrically connected to the antenna element; And a second casing having a second connection portion, wherein the second casing is electrically connected to the first casing so that the first connection portion and the second connection portion are electrically connected to the first casing. A portable wireless device that is displaceably connected to a connection position where the first connection portion is electrically connected and a blocking position where the first connection portion and the second connection portion are electrically disconnected. A first conductor electrically connected to the wireless device and a dielectric connected to the first conductor and partially exposed from the first casing; The second connection portion is a second conductor electrically connected to the antenna element and abutting on the dielectric when the second casing is at the connection position. The portable wireless device according to claim 1. 3. The first connection portion includes a first conductor electrically connected to the wireless device, and a first conductor attached to the first conductor and partially exposed from the first casing. A second conductor electrically connected to the antenna element and partially exposing the second conductor from the second casing. 2. The portable wireless device according to claim 1, wherein the portable wireless device is formed by a second dielectric attached to a conductor and abutting on the first dielectric when the second casing is at the connection position. 3. 4. The portable wireless device according to claim 1, wherein the first casing and the second casing are rotatably connected to each other by a hinge. 5. The first casing and the second casing are slidably connected in a direction substantially orthogonal to a direction in which the first connection portion and the second connection portion are electrically connected. 4. The portable wireless device according to claim 1, 2 or 3, wherein: 6. A housing-shaped first casing having a wireless device, a first connection portion, and a first antenna element, a second antenna element, and a second antenna electrically connected to the antenna element. A connection position at which the first connection portion and the second connection portion are electrically connected, and the first connection portion and the second connection portion are electrically connected to each other. A second casing that can be displaced to a blocking position that is disconnected from the second casing, a state detection sensor whose output changes when the second casing is at the connection position and when the second casing is at the blocking position, A changeover switch that is displaceable between a position for electrically connecting the connection unit of the wireless communication device and the wireless device, and a position for electrically connecting the first antenna element and the wireless device; Selectively displaces the position of the changeover switch according to the output value Portable radio apparatus comprising a displacement means for the.