JP2010283539A - Portable radio communication device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attain effective use of a waterproof terminal device even on the water. <P>SOLUTION: The portable radio communication device includes cases 200, 300 configured to be waterproof and to float in the water. An operation units 104 is disposed on surfaces of the cases 200, 300 and a radio communication processing unit is provided within the cases. The center of gravity of the whole device is set at a position C shifted from the center of the case to the rear surface side opposite to its front surface in a state that all the members including the radio communication processing unit are contained in the cases. By setting the position of the gravity center, the possibility that the communication device body floats in the water with its front surface side on which the operation unit 104 is disposed turned upward when the communication device body falls into the water and then floats in the water is increased and the device floats in the water in a favorable state. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a portable wireless communication apparatus suitable for application to, for example, a mobile phone terminal device, and more particularly to a waterproof portable wireless communication apparatus.

Conventionally, as a communication device such as a mobile phone terminal device, a waterproof device has been proposed and put into practical use. In the case of this waterproof terminal device, the locations where the joints, keys, terminals, etc. of the housing are arranged are waterproof so that water does not enter the housing constituting the terminal device body. By using this waterproof terminal device, for example, the mobile phone terminal device can be used on the coast, waterside, ski area, etc., and the usability is improved.
Patent Document 1 describes an example of a waterproof cellular phone terminal device.

JP 2004-172777 A

  The conventional waterproof mobile phone terminal device is basically intended to prevent water from entering the terminal device even when the terminal device may be watered as described above. It is not considered to be used in water like the inside. Therefore, there is a problem that even a waterproof type can only be used in a limited way.

  In view of this point, the present invention has an object to enable a waterproof terminal device to be used effectively even on water.

  The present invention is a portable wireless communication device including a casing that is waterproof and floats on water. An operation unit is disposed on the surface of the housing, and a wireless communication processing unit is provided inside the housing. Then, in a state where all members including the wireless communication processing unit are housed in the housing, the position of the center of gravity in the housing is shifted from the center of the housing to the back surface side opposite to the front surface. .

  With this configuration, when the communication device main body is put in water, the communication device main body floats on the water, and when it floats, there is a high possibility that the surface side on which the operation unit is placed will face up and float. And float in good condition.

  According to the present invention, when the communication device main body is put in water, the surface side is up and the possibility of floating on the water increases, and the surface side on which the operation unit and the like are arranged is up and floats. Therefore, the state of the portable wireless communication device floating on the water can be well confirmed in the state of floating on the water.

It is the disassembled perspective view which decomposed | disassembled and showed the example of the portable radio | wireless communication apparatus of one embodiment of this invention. It is a perspective view of the example of the portable radio | wireless communication apparatus of one embodiment of this invention. It is sectional drawing which follows the II-II line of FIG. It is a block diagram which shows the internal structural example of the portable radio | wireless communication apparatus of one embodiment of this invention. It is explanatory drawing which shows the example of the state which floated the portable radio | wireless communication apparatus of one embodiment of this invention on water. It is sectional drawing which showed the state of FIG. 5 in the cross section. It is the disassembled perspective view which decomposed | disassembled and showed the example of the portable radio | wireless communication apparatus of other embodiment of this invention. It is explanatory drawing of the example of the portable radio | wireless communication apparatus of further another embodiment of this invention. It is the perspective view which showed the modification (Example 1) of the portable radio | wireless communication apparatus of embodiment of this invention. It is the perspective view which showed the modification (Example 2) of the portable radio | wireless communication apparatus of embodiment of this invention.

Embodiments of the present invention will be described in the following order.
1. Configuration of cellular phone terminal device according to one embodiment (FIGS. 1 to 3)
2. Description of the internal configuration of the terminal device (FIG. 4)
3. Example of usage (Figs. 5 and 6)
4). Configuration of mobile phone terminal device according to another embodiment (FIG. 7)
5). Still another example of a mobile phone terminal device according to another embodiment (FIG. 8)
6). Description of modification (FIGS. 9 and 10)

[1. Overall shape of mobile phone terminal device (wireless communication terminal device) (FIGS. 1 to 3)]
First, with reference to FIGS. 1-3, the structure of the radio | wireless communication terminal device by the example of one embodiment of this invention is demonstrated. The example of the present embodiment is an example applied to a mobile phone terminal device connected to a radio telephone line by performing radio communication with a base station or the like.

1 shows an exploded configuration of the mobile phone terminal device 100, FIG. 2 shows an assembled state, and FIG. 3 shows a cross section thereof.
The cellular phone terminal device 100 of the example of the present embodiment has a waterproof structure and is configured to float on water. For this reason, as shown in FIGS. 1 and 2, the substrate 130 to which each component as the mobile phone terminal device 100 is attached is made of a first casing 200 made of a synthetic resin that is waterproof and relatively thick. And the second casing 300.

  As shown in FIG. 1, components constituting the display unit 103 and the operation unit 104 are attached to the front side of the substrate 130, and a secondary battery 121 and a charging coil 122 are arranged on the back side. Further, an antenna 106 for a radio telephone is disposed at a specific position on the surface side of the substrate 130 (in the example of FIG. 1, the lower corner). Details of the arrangement position of the antenna 106 will be described later. Further, although not shown, other circuit components necessary as a mobile phone terminal such as a wireless communication circuit described later are also attached to the substrate 130.

The first casing 200 and the second casing 300 are formed of a soft synthetic resin that is relatively flexible and waterproof. For example, an elastomer resin or a resin called rubber can be used. As shown in FIG. 1 and FIG. 3, the board 130 and each component arranged on the board 130 in the space formed by the storage section 202 of the first casing 200 and the storage section 302 of the second casing 300. Is stored.
The joining of the first housing 200 and the second housing 300 is performed, for example, by bonding the connection surface 201 of the first housing 200 and the connection surface 301 of the second housing 300 together. The bonding may be performed by any technique as long as waterproofness such as welding and adhesion is ensured.

Of the first casing 200 and the second casing 300, at least a part of the first casing 200 on the front side is transparent, and characters and numbers displayed on the display unit 103 housed inside the first casing 200 and the second casing 300 are transparent. The image is visible from the outside of the housing 200. The keys arranged as the operation unit 104 are also visible from the outside of the housing 200. Alternatively, the operation unit 104 may be made opaque by displaying numbers, functions, and the like indicating the positions where the keys are arranged on the surface of the first housing 200 by printing or the like. The position where the display unit 104 is arranged may not be completely transparent, but may be made to allow characters and the like that are displayed on the display unit 104 to appear transparent. A key disposed as the operation unit 104 is operated by being pressed by the user from above the casing 200.
The second housing 300 side that is the back surface side of the terminal device 100 may not be transparent.

In this example, as shown in a cross section in FIG. 3, the second casing 300 on the back surface side is a casing having a relatively large thickness, and is thicker than the thickness on the first casing 200 side. It is as. Specifically, as shown in FIG. 3, the thickness t1 of the first housing 200 is set to a thickness (for example, about several mm) that can maintain waterproofness and strength as the housing. 2 The thickness t2 of the central portion of the housing 300 is significantly thicker than the thickness t1 on the surface side. The second housing 300 side has a shape in which the central portion is thick and swells, and the thickness gradually decreases as it approaches the left and right side surfaces.
By increasing the thickness of the casing 300 on the back surface side in this way, the center of gravity C of the mobile phone terminal device 100 as a whole is larger than the center position of the terminal device 100 as shown in FIG. Is also shifted to the back side. As a factor for determining the center-of-gravity position C, not only the housings 200 and 300 but also the arrangement balance of each component in the housing is affected. In this example, the case 300 is thickened. This is a major factor that shifts the center of gravity C to the back side.

[2. Description of internal configuration of terminal device (FIG. 4)]
FIG. 4 is a block diagram showing an internal configuration of the mobile phone terminal device 100 according to the example of the present embodiment.
The configuration shown in FIG. 4 will be described. The mobile phone terminal device 100 includes a control unit 101 configured as a central control unit (CPU), and the control unit 101 controls each unit via a control line 150. In addition to the control line 150, a data line 160 for transmitting audio data and the like is also provided. An operation command from the operation unit 104 is supplied to the control unit 101. The operation unit 104 is configured by, for example, a substrate on which key switches are arranged.

In addition, the mobile phone terminal device 100 includes a communication circuit 102 that performs wireless communication with a base station or the like as a mobile phone terminal, and an antenna 106 is connected to the communication circuit 102. The audio data in the data received by the communication circuit 102 is sent to the short-range communication circuit 110 and wirelessly transmitted from the antenna 111 connected to the short-range communication circuit 110. The short-range communication circuit 110 is a communication circuit conforming to a wireless communication method called Bluetooth (trademark), for example, and is received by a Bluetooth headset (not shown) to output sound.
The voice data wirelessly transmitted from the headset is received by the short-range communication circuit 110, supplied to the communication circuit 102 via the data line 160, and wirelessly transmitted to the base station side. In the case of this example, the microphone and speaker constituting the handset are not attached to the terminal device 100.

Further, when various data such as mail data, web browsing screen data, downloaded image data and music data are received by the communication circuit 102, these data are stored in the memory 105, and image display, music playback, etc. I do.
The display unit 103 is provided to perform image display based on the received data, display at the time of outgoing and incoming calls necessary for a mobile phone terminal, display of a telephone directory, and the like. As the display unit 103, for example, a liquid crystal display panel, an organic EL (Organic Electro-Luminescence) display panel, or the like is applicable.

In addition, the cellular phone terminal device 100 of this example includes a secondary battery 121 configured as a lithium ion battery or the like as a power source. Charging / discharging of the secondary battery 121 is controlled by the charging / discharging control unit 120. Here, in the case of this example, the terminal device 100 is configured to include the charging coil 122 and is configured not to include a charging terminal.
The charging coil 122 is arranged on the back surface side of the mobile phone terminal device 100 as shown in FIG. 1 and the like, and by being close to the coil on the charger side (not shown), the power supply from the charger is received, The secondary battery 121 is charged.

[3. Example of use state (FIGS. 5 and 6)]
Next, an example of the usage state of the mobile phone terminal device 100 of this example will be described with reference to FIGS. As already described, the mobile phone terminal device 100 of this example has a waterproof structure and a casing structure that floats on water. For this reason, when the mobile phone terminal device 100 of this example is put in water, it floats on the water surface as shown in FIG. At this time, as described with reference to FIG. 3, since the center of gravity of the terminal device is shifted from the center to the back side, there is a possibility that the back side is heavier and the back side is down and floats on the water surface. high.

  FIG. 5 is a diagram showing a state in which the mobile phone terminal device 100 is floated on the water surface W, and is displayed on the key arrangement 104 a and the display unit 103 constituting the operation unit 104 through the first housing 200 on the surface. The display 103a is visible. Thus, by putting the terminal device 100 of this example in water, the surface, which is a surface on which the key arrangement and display can be seen, floats up as shown in FIG. Therefore, the display on the display unit 103 can be seen and the key arrangement can be seen while floating on the water, and the operation can be performed immediately. Specifically, for example, when there is an incoming call or mail reception to the mobile phone terminal device 100 in a state where it floats on the water, the incoming call or mail reception can be readily seen from the display on the display unit 103. Become. Lighting may also be incorporated into the key arrangement 104a so that incoming calls and mail receptions can be known from the lighting of the key arrangement 104a.

In addition, as shown in FIG. 6, the mobile phone terminal device 100 of this example has a position of the antenna 106 attached to the internal substrate 130 more than the floating water surface W when the terminal device 100 is floated on water. The position is on the upper side.
Since the antenna 106 is positioned above the water surface when the mobile phone is floated in this way, the mobile phone terminal device 100 can satisfactorily communicate with the radio base station even when the mobile phone terminal device 100 is floated on the water. You can send and receive mail. Similarly, the antenna 111 of the short-range wireless communication (here, Bluetooth method) shown in FIG. 4 is also arranged at a position above the floating water surface W when the terminal device 100 is floated on water. May be.

  In addition, the mobile phone terminal device 100 of this example does not incorporate the microphone and speaker constituting the handset in the terminal device body, and is configured to perform non-contact charging using the charging coil 122 for charging. For this reason, a waterproof structure in which the interior is completely covered with the first casing 200 and the second casing 300 can be relatively easily performed. Therefore, it is a structure suitable for use in the state floated on water as shown in FIG.

  In the example of FIG. 1, the casing is divided into the first casing 200 and the second casing 300, but the casings 200 and 300 are joined if they can be integrally formed by any method. You may comprise as one housing | casing of the shape which was made.

[4. Configuration of Cellular Phone Terminal Device According to Other Embodiment (FIG. 7)]
FIG. 7 is an exploded view of a configuration example of a mobile phone terminal according to another embodiment of the present invention. In the example of FIG. 7, internal casings 400 and 500 are prepared in addition to the first casing 200 and the second casing 300 as the casing. That is, the board 130 and each member on the board are housed in a space between the housing portion 401 of the inner casing 400 on the front surface and the housing section 501 of the inner housing 500 on the rear surface, which are molded of hard resin. Let A window 402 corresponding to the display unit 103 and a key 403 are arranged on the inner casing 400 on the front surface side, and a window 203 is provided on the outer first casing 200 to be assembled. Thus, the display unit 103 and the key 403 are exposed from the window unit 203. However, the waterproof structure can be maintained even if the windows 203 and 403 are provided.
Other parts are configured in the same manner as the cellular phone terminal device 100 of FIG. That is, the first casing 200 and the second casing 300 are configured to have flexibility, and the waterproof structure is configured to be waterproof in each casing 200 to 500. Further, the center of gravity of the terminal device is shifted to the back side from the center.

  As shown in FIG. 7, the internal casings 400 and 500 are configured to house the board 130 and the members on the board and then cover the inner casings 400 and 500 with the casings 200 and 300. As a result, the internal casings 400 and 500 are responsible for protecting internal circuit components. For this reason, the outer casings 200 and 300 may have a shape for providing waterproof performance or shifting the position of the center of gravity, and the strength and the like of the terminal device can be improved satisfactorily. In addition, when it is difficult to provide a window part in order to maintain waterproof performance, you may cope by making the applicable part of each housing | casing transparent.

[5. Still another example of mobile phone terminal device according to another embodiment (FIG. 8)]
FIG. 8 is an exploded view of a configuration example of a mobile phone terminal according to another embodiment of the present invention. In the example of FIG. 8, the speaker 107 is disposed above the surface of the first housing 200, and the microphone 108 is disposed below the surface, so that the speaker 107 and the microphone 108 function as a handset. It is a thing.
Note that the waterproof structure can be maintained also by arranging the speaker 107 and the microphone 108 in the housing 200. Other portions are configured in the same manner as the cellular phone terminal device 100 in FIG. 1, and the center of gravity is also shifted from the center to the back side.

  Even in the configuration shown in FIG. 8, in addition to the display 103a and the key arrangement 104a, the speaker 107 and the microphone 108 are always above the water surface as shown in FIG. It will be in a floating state. Therefore, for example, by incorporating a hands-free call function, it is possible to make a call in a floating state as shown in FIG.

[6. Description of Modification (FIGS. 9 and 10)]
9 and 10 show a modification of the shape of the mobile phone terminal device.
The example in FIG. 9 is a mobile phone terminal device 600 covered with a waterproof housing 601 made of flexible resin, and a ring portion 602 is provided integrally with the housing 601. The key 611 and the display portion 612 are visible on the surface of the housing 601. Further, the center of gravity position is shifted from the center to the back side.
Even in the case of the configuration shown in FIG. 9, the surface side having the key 611 and the display portion 612 is up when it floats on water.

FIG. 10 shows another example of the cellular phone terminal device 700. In this example, the entire housing 701 is transparent and has a waterproof shape and floats on water. Since it is transparent, the keys 711 and the like arranged on the internal substrate portion 710 are visible. An operation can be performed by pressing a key 711 from the front side of the housing 701.
The mobile phone terminal device 700 in FIG. 10 also has a center of gravity shifted from the center of the terminal device to the back side. However, in this example, the center position is shifted from the center of the terminal device to the back side by arranging the internal components, and the thickness of the housing 701 is the same on the front surface and the back surface.
Also in the case of the configuration shown in FIG. 10, the surface side having the key 611 and the display portion 612 is up when floating on water.

In each example described so far, the example in which the present invention is applied to the mobile phone terminal device has been described. However, the present invention may be applied to various other portable wireless communication devices other than the mobile phone terminal device.
The configuration shown in each figure also shows a preferable example, and is not limited to the illustrated configuration. For example, in each example, the mobile phone terminal device is provided with a display unit. However, the mobile phone terminal device may be configured as a so-called simple mobile phone terminal device without a display unit.
In the configuration of FIG. 4, the charging coil is provided and charging is performed in a non-contact manner, but the charging terminal may be provided.

  DESCRIPTION OF SYMBOLS 100 ... Cell-phone terminal device, 101 ... Control part, 102 ... Communication circuit, 103 ... Display part, 104 ... Operation part, 105 ... Memory, 106 ... Antenna, 107 ... Speaker, 108 ... Microphone, 110 ... Short-range communication circuit, DESCRIPTION OF SYMBOLS 111 ... Antenna, 112 ... Vibrator, 120 ... Charge / discharge control part, 121 ... Secondary battery, 122 ... Coil for charge, 130 ... Board | substrate, 200 ... 1st housing | casing, 201 ... Connection surface, 202 ... Storage part, 203 ... Window part, 300 ... second housing, 301 ... connection surface, 302 ... housing part, 303 ... thick part, 400 ... first inner housing, 401 ... housing part, 402 ... window part, 403 ... key, 500 ... Second internal casing, 501... Storage section, 600... Mobile phone terminal apparatus, 601... Casing, 602... Ring section, 611. , 711 ... key

Claims (5)

A housing that is waterproof and configured to float on water;
An operation unit disposed on a surface of the housing;
A wireless communication processing unit disposed in the housing,
A portable wireless communication apparatus in which the position of the center of gravity in the housing is shifted from the center of the housing to the back side opposite to the front surface in a state where all members including the wireless communication processing unit are housed. . The portable wireless communication device according to claim 1, further comprising a display unit disposed on a surface of the housing. The portable wireless communication apparatus according to claim 1, further comprising an antenna connected to the wireless communication processing unit, wherein the antenna is positioned above the water surface when the housing is floated on water. The portable wireless communication apparatus according to claim 1, wherein the thickness of the rear surface side of the housing is made thicker than the front surface side, so that the position of the center of gravity in the housing is shifted from the center of the housing to the back surface side. . The portable wireless communication apparatus according to claim 1, wherein the housing includes an internal housing that houses the operation unit and the wireless communication processing unit, and a waterproof external housing that houses the internal housing.

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