WO2013018438A1

WO2013018438A1 - Mobile terminal device and mobile terminal system

Info

Publication number: WO2013018438A1
Application number: PCT/JP2012/064781
Authority: WO
Inventors: 龍行新谷; 道生永井; 英路村松
Original assignee: 日本電気株式会社
Priority date: 2011-07-29
Filing date: 2012-06-08
Publication date: 2013-02-07
Also published as: JPWO2013018438A1

Abstract

In order to minimize localized increases in the thickness of a case, a mobile terminal device (1) is provided with: an external cover section having a main surface, a rear surface, and side surfaces surrounding the area between the main surface and the rear surface; and a plurality of component-receiving sections (20) that receive external components on the inside of the external cover section. The side surfaces comprise first and second side surfaces (S1, S2) that face each other, and third and fourth side surfaces (S3, S4) that face each other and are in contact with each of the first and second side surfaces (S1, S2). The plurality of component-receiving sections (20) are positioned only on one side (top-side area (5)) relative to a center partition line (CL) connecting a first center point (C1) that divides the total length (L1) of the first side surface (S1) into two and a second center point (C2) that divides the total length (L2) of the second side surface (S2) into two.

Description

Portable terminal device and portable terminal system

This application is based on Japanese Patent Application No. 2011-167288 filed on July 29, 2011, and claims priority based on this application. This application is incorporated herein by reference in its entirety.

The present invention relates to a mobile terminal device and a mobile terminal system, and more particularly to the arrangement of slots, ports, and the like.

Mobile terminal devices such as mobile phones and smartphones are provided with a part receiving unit for receiving external parts such as connectors and cards for the purpose of connection interface with external devices and charging. These component receiving portions are usually provided on the side surface, back surface, or battery housing portion inside the housing (Patent Document 1).

JP 2009-111573 A

In recent years, so-called tablet-type mobile terminal devices larger than conventional mobile phones and smartphones have been developed. In this type of portable terminal device, it is desirable to make the device as thin and light as possible so as not to impair portability, specifically ease of carrying and operability when held by hand. The above-described component receiving portion generally has a small planar size, but requires a physical space for receiving an external component, and is often a relatively large size particularly in the thickness (height) direction. Therefore, in order to reduce the thickness, it is important to arrange these component receiving portions efficiently and make the ratio of the thick portion of the casing as small as possible.

An object of the present invention is to provide a mobile terminal device capable of minimizing an increase in local thickness of a casing.

The mobile terminal device of the present invention includes an exterior part having a main surface, a back surface, and a side surface that circulates between the main surface and the back surface, and a plurality of component receiving parts that receive external components inside the exterior part; have. The side surface includes first and second side surfaces facing each other, and third and fourth side surfaces facing each other and in contact with the first and second side surfaces, respectively. The plurality of component receiving portions may be configured with respect to a central dividing line connecting a first midpoint that bisects the total length of the first side surface and a second midpoint that bisects the total length of the second side surface. Located on the side only.

The portable terminal device of the present invention has a plurality of component receiving portions, and the plurality of component receiving portions are located only on one side with respect to the central dividing line. In other words, since the component receiving portions that are likely to cause a local increase in the thickness of the exterior portion are concentrated, a portion having a large thickness is limited.

According to the present invention, it is possible to provide a mobile terminal device capable of minimizing an increase in local thickness of the housing.

The above and other objects, features, and advantages of the present application will become apparent from the detailed description set forth below with reference to the accompanying drawings, which illustrate the present application.

1 is an overall outline view of a mobile terminal device according to an embodiment of the present invention. It is a side view of the portable terminal device shown in FIG. It is a side view of the portable terminal device shown in FIG. It is a side view of the portable terminal device shown in FIG. It is a top view which shows the internal structure of the portable terminal device shown in FIG. It is a conceptual diagram of a charging device and a portable terminal system. It is a conceptual diagram of a charging device and a portable terminal system.

DESCRIPTION OF SYMBOLS 1 Portable terminal device 4 Exterior part 5 Upper area | region 6 Lower area | region 20 Component receiving part 21 External interface port 21a USB port 21b HDMI terminal 22 Recording medium slot 22a SIM card slot 22b Data SD card slot 23 Charging jack 24 Earphone jack 25a Power switch 25c Volume adjustment button C1 First midpoint C2 Second midpoint CL Center dividing line F Front R Back S Side S1 to S4 First to fourth side

The present invention is generally referred to as a tablet type, and is preferably applied to a large-sized mobile terminal device as compared with a small communication device generally referred to as a smartphone. Although the size of the tablet-type portable terminal device 1 is not particularly limited, a display panel having a size of approximately 17.8 cm (about 7 inches) to 23.4 cm (about 10 inches) can be given as an example. The present invention generally includes a display panel, a battery, and a substrate, such as a mobile phone device, a smartphone, a game device, an electronic book terminal, and a PDA, all of which are integrally arranged in one casing. It can apply to the portable terminal device.

Hereinafter, embodiments of the mobile terminal device 1 of the present invention will be described with reference to the drawings.

FIG. 1 is an overall outline view of a mobile terminal device 1 according to an embodiment of the present invention, and shows a perspective view of the mobile terminal device 1 viewed from the front side. The exterior portion 4 of the mobile terminal device 1 functions as a casing of the mobile terminal device 1 and is configured to be supported by the rear cover 2 that forms the back surface R and the side surface S of the exterior portion 4 and the front cover F of the exterior portion 4. And a front panel 3. The side surface S circulates between the front surface F and the back surface R, and constitutes the exterior part 4 of the mobile terminal device 1 together with the front surface F and the back surface R. The rear cover 2 is formed of a carbon composite also known as a carbon fiber reinforced carbon composite material or a carbon fiber laminate. The carbon composite is a composite material containing 50% by volume or more of carbon and containing an inorganic binder such as silica and alumina, a fiber, and the like. The front panel 3 is provided for the purpose of protecting a substantially rectangular display panel 16 formed of a liquid crystal panel, an organic EL panel, or the like, and at least a portion corresponding to the display panel 16 transmits an image so that a transparent resin such as acrylic or glass is used. It is formed with. A film 17 for constituting a touch panel can be provided on the outer surface of the front panel 3.

2A to 2C are side views showing the respective side surfaces of the mobile terminal device 1, and FIG. 3 is a schematic plan view showing the internal structure of the mobile terminal device 1. FIG. 2A to 2C are side views taken along lines A1-A1, A2-A2, and A3-A3 in FIGS. 1 and 3, respectively.

The mobile terminal device 1 has a substantially rectangular planar shape as a whole, and the front surface F with the front panel 3 is formed flat and the back surface R is formed in a curved surface shape. Specifically, in the rear surface R, the central portion in the long side direction of the mobile terminal device 1 is a concave portion 11 (thinnest portion), and the upper and lower sides thereof are convex portions (thickest portions) 12 and 13. . Further, the outsides of the convex portions (thickest portions) 12 and 13, that is, the

portions

14 and 15 along the short side of the mobile terminal device 1 are drawn so as to be thinner in the thickness direction than the

convex portions

12 and 13. . By using such a back surface shape, the design is improved, and the

convex portions

12 and 13 can be held with both hands when the mobile terminal device 1 is used in the horizontal direction, which improves usability.

The side surface S of the mobile terminal device 1 is opposed to the first and second side surfaces S1, S2 facing each other, and the third and fourth side surfaces S3, S4 facing each other and shorter in length than the first and second side surfaces S1, S2. It consists of. The first to fourth side surfaces S1 to S4 are side surfaces on the left side, the right side, the upper side, and the lower side, respectively, when the side on which the connectors to be described later are disposed in the longitudinal direction of the mobile terminal device 1 is the upper side. is there. In the case of a large portable terminal device such as a tablet type, normally, the user mainly holds the lower part when operating the portable terminal device 1, and the upper side is not touched. FIG. 3 shows the positions of the side surfaces S1 to S4 at this time.

The first to fourth side surfaces S1 to S4 can be formed by flat surfaces, curved surfaces, or combinations thereof. In the present embodiment, the first side surface S1 and the second side surface S2 are planar, parallel to each other, and have the same length. The third side surface S3 and the fourth side surface S4 have curved shapes in which the central portion is convex in the longitudinal direction of the mobile terminal device 1 and becomes shorter toward the first side surface S1 side and the second side surface S2 side. The third side surface S3 swells greatly in the longitudinal direction compared to the fourth side surface, but the fourth side surface S4 has a smaller bulge than the third side surface S4. For this reason, when it is hand-held vertically, the fourth side surface S4 can be easily held by hand, the ease of holding can be improved, and the stability in the held state can be improved.

In the present embodiment, the boundary between the side surfaces S1 to S4 is an acute angle portion as clearly shown, but it may be a curved surface. In that case, the point where the rate of change in direction becomes maximum can be set as the boundary between the side surfaces adjacent to each other. For example, in the plan view of FIG. 3, the angle θ at each position on the side surface (angle θ of the tangent line in the curved portion) is defined as 0 degrees with the 12 o'clock position of the timepiece set to be positive, A position coordinate s that turns around is defined with a predetermined position on the side as an origin. When dθ / ds is calculated at each position coordinate s, a maximum value of dθ / ds is obtained near the four corners. The position coordinate s from which the maximum value is obtained can be used as a side boundary.

Consider a center line CL that connects a first midpoint C1 that roughly bisects the overall length L1 of the first side S1 and a second midpoint C2 that bisects the overall length L2 of the second side S2. . When the first and second side surfaces S1 and S2 are curved surfaces, the total lengths L1 and L2 have a length along the curved surface. In the following description, a region located on the third side surface S3 side with respect to the central dividing line CL is referred to as an upper region 5, and a region located on the fourth side surface S4 side is referred to as a lower region 6. The lower region 6 is a side that is supported by hand with respect to the central dividing line CL, and the upper region 5 is the opposite side.

A substrate 7 including a central processing unit (not shown) is provided in the upper region 5 of the mobile terminal device 1. A battery 8 is provided in the lower region 6 of the mobile terminal device 1. In the present embodiment, the battery 8 extends to the upper region 5, but can be provided only in the lower region 6 by adjusting the battery capacity. In order to reduce the thickness of the mobile terminal device 1, it is preferable that the substrate 7 and the battery 8 are separated in a plane. In addition, since the substrate 7 mainly generates heat during use, the substrate 7 is arranged in the upper region 5 so that when the portable terminal device 1 is used vertically, the heating unit and the hand are in direct contact. It is prevented.

The upper area 5 includes a USB port 21a, an external interface port 21 such as an HDMI (High-Definition Multimedia Interface) port 21b, a SIM (Subscriber Identity Module) card slot 22a, and a recording medium slot 22 such as a data SD card slot 22b. A charging jack 23 and an earphone jack 24 are provided. The SIM card is a device-specific SD card in which user identification information of the mobile terminal device 1 is recorded. The data SD card is an SD card provided separately from the SIM card for recording, reproducing, or recording / reproducing image files, document files, audio files, and the like. The recording medium slot 22 is not limited to an SD card slot, and may include a slot for any card type recording medium, a slot for any optical disk, and a slot for any magnetic disk. The external interface port 21 has an opening for receiving a terminal having an arbitrary shape such as a cylindrical shape or a rectangular parallelepiped shape, and the charging jack 23 and the earphone jack 24 each have an opening for receiving a generally cylindrical terminal.

The above-described external interface port 21, recording medium slot 22, charging jack 23, and earphone jack 24 are collectively referred to as a component receiving unit 20. These ports, slots, and jacks are merely examples of the component receiving unit 20, and the component receiving unit 20 is any component that is configured to temporarily or permanently receive components that are separable or detachable from the mobile terminal device 1. including. Examples of the component receiving unit not provided in the present embodiment include a microphone jack for connecting an external microphone, a monitor output port (15-pin D-Sub display output), a LAN port, and the like. The opening of the component receiving portion 20 may be provided along the side surface S, or may be provided on the front surface F or the back surface R. For a recording medium such as a SIM card that normally does not attach and detach, a part of the housing may be used as a screw-type cover, and the cover may be removed and mounted inside the housing each time.

The component receiving portion 20 needs to have a space for receiving external components such as terminals and cards (usually, but not limited to a cylindrical or rectangular hollow), and further forms a receiving space. Since a casing to be used is also required, there is generally a limit to thinning. Therefore, in the position where the component receiving part 20 is provided, the exterior part 4 tends to be thicker than the position where the component receiving part 20 is not provided. In the present embodiment, the component receiving portions 20 are concentrated in the upper region 5. Specifically, the SIM card slot 22a and the charging jack 23 are in the upper area 5 of the first side surface S1, and the USB port 21a, the HDMI port 21b and the SD card slot 22b are in the upper area 5 of the second side surface S2. Earphone jacks 24 are respectively provided on the third side surface S3.

When these component receiving portions 20 are arranged in a distributed manner, not only the position of the component receiving portion 20 but also the thickness around the component receiving portion 20 in order to secure the thickness of the exterior portion 4 in each receiving portion 20. It is necessary to increase the size. For this reason, the area of the thin part of the portable terminal device 1 decreases. For example, the range of the concave portion 11 in the central portion is reduced, and it is difficult to reduce the thickness of the entire apparatus. On the other hand, in this embodiment, the receiving part 20 is concentratedly arranged in the upper area | region 5, Preferably all the component receiving parts 20 are concentratedly arrange | positioned in the vicinity of the convex part 12. FIG. In this way, the thick portion of the portable terminal device 1 can be concentrated to minimize the area, the range of the thin portion (minimum thickness portion) can be expanded, and the form terminal device 1 can be thinned. Can do.

In addition, the component receiving part 20 may be centrally arranged in the lower region 6. That is, the component receiving part 20 should just be located in one side regarding the center division line CL.

The third side surface S3 is further provided with a power switch 25a and a volume adjustment button 25c. The power switch 25a includes a slide bar 25b. The portable terminal device 1 can be turned on and off by sliding the slide bar 25b along the third side surface S3. The volume adjustment button 25c includes a volume increase button (a button with a “+” in the figure) and a volume decrease button (a button with a “−” in the figure). By doing so, the volume can be adjusted.

These parts, unlike the above-described part receiving unit 20, do not have a space for receiving external parts. However, these parts require an operation portion with a certain width from the viewpoint of operability, and may be a limitation on thinning. Accordingly, these components are also concentrated in the upper region 5. As a result, the main operation unit concentrates on the upper region 5. For example, while holding the mobile terminal device 1 with one hand, it is easy to operate the mobile terminal device 1 or connect external parts with a free hand. Thus, the operability is improved. In particular, since the volume adjustment button 25c related to the sound and the earphone jack 24 are disposed adjacent to each other, the user is not at a loss during the operation.

The camera module 26 is disposed in the upper area 5 of the mobile terminal device 1, and the speaker 27 and the vibration element (piezoelectric element) 28 are disposed in the lower area 6. These parts can be easily thinned, and do not become a major limitation on the thinning of the entire apparatus. An antenna 29a is provided in the lower region 6 of the mobile terminal device 1, and is connected to the substrate 7 via a cable 29b. This is because the mobile terminal device 1 of the present embodiment has a relatively large plane size. There is little need to arrange the antennas three-dimensionally in order to increase the antenna length. For this reason, the antenna 29a is not a major limitation on the thinning of the entire apparatus.

Note that the speaker 27, the vibration element 28, the antenna 29a, and the like may be arranged in the upper region 5. In this case, the lower region 6 can be further reduced in thickness and size.

Next, a mobile terminal system 31 including the mobile terminal device 1 described above and its charging device will be described with reference to FIGS. 4A and 4B. 4A is a schematic perspective view of the charging device 32, and FIG. 4B is a schematic cross-sectional view of the mobile terminal system 31 showing a state where the mobile terminal device 1 is mounted on the charging device 32, as viewed from the line 4A-4A in FIG. 4A. is there. The charging device 32 includes a front guide 33, a back plate 34, and a bottom plate 35, and an opening 36 is formed by these. The mobile terminal device 1 is inserted into the opening 36 and held by the charging device 32 so that the first side surface S <b> 1 abuts against the bottom plate 35, that is, in a sideways state. A rotatable leg portion 37 is provided on the back surface of the back plate 34, and the charging device 32 can hold and charge the mobile terminal device 1 in a self-standing state.

The mobile terminal device 1 has a charging terminal 23 'on the first side S1. The charging terminal 23 ′ is substantially in the same position as the charging jack 23 shown in FIGS. 2A to 2 C and 3, but unlike the charging jack 23, a metal plate (pad) provided exposed on the first side face S 1. It is. A connecting portion (pad) 38 having the same configuration is provided on the bottom plate 35 of the charging device 32. The connection unit 38 is connected to an AC adapter 39 built in the charging device 32. The connection unit 38 can be electrically connected to the charging terminal 23 ′ when the mobile terminal device 1 is placed on the charging device 32. That is, the portable terminal device 1 can be charged by mounting the portable terminal device 1 on the charging device 32 so that the charging terminal 23 ′ of the portable terminal device 1 contacts the connecting portion 38 of the charging device 32.

As described above, the external interface port 21 (USB port 21a and HDMI port 21b) and the data SD card slot 22b are provided on the second side S2. Therefore, when the portable terminal device 1 is placed on the charging device 32 so that the first side face S1 is directed downward, the external interface port 21 and the data SD card slot 22b face upward. Therefore, during charging, it is possible to connect the cable to the external interface port 21, and to attach / detach the SD card to / from the data SD card slot 22b. Only a part of the external interface port 21 and the data SD card slot 22b may be provided on the second side S, and the rest may be provided on a side other than the second side S2 (for example, the third side S3).

While several preferred embodiments of the present invention have been shown and described in detail, it should be understood that various changes and modifications can be made without departing from the spirit or scope of the appended claims.

Claims

An exterior portion having a main surface, a back surface, and a side surface that circulates between the main surface and the back surface;
A plurality of component receiving portions for receiving external components inside the exterior portion;
Have
The side surface includes first and second side surfaces facing each other, and third and fourth side surfaces facing each other and in contact with the first and second side surfaces, respectively.
The plurality of component receiving portions relate to a central dividing line connecting a first midpoint that bisects the overall length of the first side surface and a second midpoint that bisects the overall length of the second side surface. A portable terminal device which is located on one side only.
2. The mobile phone according to claim 1, wherein the first and second side surfaces are longer in length than the third and fourth side surfaces, and the one side is opposite to a side supported by a hand with respect to the central dividing line. Terminal device.
The third side surface is located on the one side;
The portable terminal device according to claim 1, wherein a power switch and a volume adjustment button are located on the third side surface.
The portable terminal device according to claim 1, wherein a substrate including a central processing unit is located on the one side.
A portable terminal device according to claim 1;
A self-supporting charging device capable of charging while holding the mobile terminal device;
Have
The portable terminal device has a charging terminal on a first side;
The charging device has a connection portion that can be electrically connected to the charging terminal when the mobile terminal device is placed;
The plurality of component receiving units include at least one of an external interface port and a recording medium slot,
The portable terminal system, wherein at least one of the external interface port and the recording medium slot is located on the second side surface.