JP2009212988A - Mobile communication terminal device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize a thin shape, without reducing the strength as a component-mounting part, such as, a screen-mounting part. <P>SOLUTION: A mobile phone 10, as a mobile communication terminal device, is configured to couple a first case 1, comprising a display unit for displaying reception information and a second case 2 comprising an operation unit, in which information input keys are arranged, via a hinge part 3 to open/close, where an opening 4 is formed on the first case 1 and a frame body (component-mounting part) 5, in an endless shape constituted of a sheet metal protruded into the opening 4, along with the circumferential edge of the opening 4 being fixed directly on an inner surface of the first case 1 by heat caulking. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a mobile communication terminal device, and more specifically, a first casing having a display unit and a second casing having an operation unit are configured to be openable and closable, and at least one of both casings has a screen mounting unit. And a mobile communication terminal device in which the first component is mounted on the outer surface of the component mounting portion and the second component is disposed on the inner surface of the component mounting portion. .

  A mobile phone, which is a representative mobile communication terminal device, is provided with a first housing having a display unit (main display unit and sub display unit) for displaying character information or image information, and a plurality of information input keys such as a numeric keypad. The thing of the structure couple | bonded with the 2nd housing | casing provided with the operation part which can be opened and closed via a hinge part is used widely. In a mobile phone having such a configuration, when both cases are open, the received information can be confirmed on the main display provided on the front side of the first case, and both cases are closed except when in use. Thus, the overall size is reduced by folding them together. In addition, when receiving with both the housings closed, the reception information such as the telephone number of the other party can be confirmed on the sub display section provided on the back side of the first housing. The main display unit and the sub display unit respectively provided on the front side and the back side of the first housing are displays such as a liquid crystal display element (LCD) and an organic EL (Electro-Luminescence) element. It is comprised using an element.

  By the way, in recent mobile phones, in order to be more portable, not only the above-described downsizing but also a reduction in thickness is desired. For this reason, manufacturers are competing to realize a reduction in thickness in millimeters or less. Here, there is a limit to reducing the thickness of electrical components such as a front screen and a display element, and it has become difficult to reduce the thickness and secure the strength of mobile phones.

  FIG. 9 is a sectional view showing a schematic configuration of a conventional mobile phone, and FIG. 10 is a perspective view showing a schematic configuration of the mobile phone. As shown in FIGS. 9 and 10, the mobile phone 100 includes a screen mounting portion 102 in which a part of a first casing 101 that is, for example, an upper casing made of a mold resin is bent inward. A screen 104 made of a transparent material is attached to the outer surface of the screen attaching portion 102 via a double-sided tape 103, while a display element (back display element) 106 made of, for example, an EL element is attached to an inner surface of the screen attaching portion 102 via a cushion material 105. Is arranged. The display element 106 is attached to a position (not shown) of the first housing 101 and is disposed so as to push up the cushion material 105. In this conventional example, a rear display element serving as a sub display unit provided on the rear side of the first housing 101 is shown. Here, the screen mounting portion 102 needs to ensure a certain strength, and the thickness thereof is formed to be 0.6 to 0.7 mm as an example. FIG. 10 shows a schematic configuration of the upper housing 101 as viewed from the side on which the display element 10 is attached.

Here, for the purpose of reducing the thickness of the mobile phone, a mobile phone having a configuration in which a screw boss for attaching a liquid crystal display element to a housing is unnecessary is disclosed (Patent Document 1). In addition, a camera-equipped mobile phone configured to prevent the deviation of the optical axis of the camera is disclosed (Patent Document 2). Further, a mobile phone having a configuration that is intended for a mobile phone having a panel speaker structure and that prevents the protective panel from falling off due to an impact such as dropping, and greatly improves the sound quality of the panel speaker structure is disclosed. (Patent Document 3). As shown in FIG. 11, the mobile phone 200 disclosed in Patent Document 3 is formed of a sheet metal on a substrate 205 that is housed and installed in a device casing 204 and mounts an LCD device 206. A support frame 209 having a frame shape that follows the peripheral edge of the protective panel is installed, the protective panel 207 is held on the support frame 209 via the suspension member 210, and the peripheral edge in the outer direction of the protective panel 207 is mounted on the device housing 204. A flange 204f that covers the entire circumference is formed. Here, the protection panel 207 is attached to the flange 204f of the device housing 204 via the cushion member 212.
JP 2000-223858 A JP 2006-333373 A JP 2006-352762 A

Patent Document 1 discloses one solution for realizing a thin mobile phone, but does not show a component mounting portion such as a screen mounting portion that is an essential requirement in the present invention. Therefore, a means for solving the problem that the component mounting portion affects the thinning is not disclosed.
Patent Document 2 discloses a configuration for preventing the optical axis of the camera from being shifted in a camera-equipped mobile phone. Similar to Patent Document 1, a configuration such as a screen mounting portion that is an essential requirement in the present invention. The component mounting portion is not shown, and means for solving the problem that the component mounting portion affects the thinning is not disclosed.

  In Patent Document 3, as shown in FIG. 11, a support frame 209 that is considered to correspond to a screen mounting portion in the present invention is shown, and it is disclosed that the support frame 209 is formed from a sheet metal. However, the support frame 209 is not directly attached to the housing as in the present invention, but is attached to the flange 204f of the housing 204 via the suspension member 210, the cushion member 212, and the protective panel 207. . Moreover, it is attached via a path formed by the three members 210, 212, and 207 without using a fixing means by heat caulking or screwing. In the present invention, in the case where the sheet metal is indirectly attached to the housing through a path made of a plurality of members in this way, when a shock is applied such as inadvertently dropping the mobile phone, Alternatively, when used for a long period of time, it is inevitable that any of a plurality of members in the path is likely to deteriorate, and thus the strength of each member cannot be denied. As a result, not only does the sheet metal easily peel off from the housing, but also the screen easily peels off from the sheet metal, making it difficult to provide a highly reliable product. Therefore, in the present invention, it is necessary to attach a component mounting part such as a screen mounting part directly to the housing, not indirectly via a path made up of a plurality of members.

By the way, in the conventional portable communication terminal device, a part of the housing is used as a component mounting portion, but this component mounting portion needs to be thick enough to secure a certain strength. There is a problem that the thickness of the component mounting portion affects the thinning.
That is, in the conventional mobile phone 100 that is representative of the mobile communication terminal device, as shown in FIGS. 9 and 10, a part of the first housing 101 is bent inward and used as the screen mounting portion 102. However, there is a restriction that the thickness of the screen mounting portion 102 cannot be reduced because the screen mounting portion 102 needs to have a certain strength.

  The present invention has been made in view of the above-described circumstances, and provides a mobile communication terminal device capable of realizing a reduction in thickness without reducing strength as a component mounting portion such as a screen mounting portion. It is intended to provide.

  In order to solve the above problems, the configuration of the present invention is configured such that a first casing having a display unit for displaying received information and a second casing having an operation unit on which an information input key is arranged can be opened and closed. The display unit displays the reception information on the front side of the first housing when the two housings are opened; and the reception information when the both housings are closed. A sub-display unit that displays on the back side of the first casing, and includes a component mounting part on at least one of the front side or the back side of the first casing, and the outer side surface of the component mounting part The first component is attached to the portable communication terminal device, and the second component is disposed on the inner surface of the component attachment portion. The outer surface of the component attachment portion is the first casing. Characterized in that it consists of a sheet metal directly attached to the fixing means To have.

  Thus, according to the configuration of the present invention, at least one of the front side or the back side of the first casing constituting the mobile phone is provided with a component mounting portion such as a screen mounting portion, Since the outer surface is made of a sheet metal directly attached to the first casing by fixing means such as heat caulking or screwing, a component mounting part such as a screen mounting part can be used by taking advantage of the high rigidity of the sheet metal. It is possible to reduce the thickness without reducing the strength.

  A mobile phone 10 as a mobile communication terminal device includes a first housing 1 having a display unit for displaying received information and a second housing 2 having an operation unit on which an information input key is arranged. The opening 4 is formed in the first housing 1 and the inner surface of the first housing 1 is along the periphery of the opening 4 and in the opening 4. An endless frame 5 made of protruding sheet metal is directly fixed by heat caulking.

Embodiment 1

1 is a perspective view showing a schematic configuration of a mobile phone according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view showing a schematic configuration of the mobile phone, and FIG. 3 shows an enlarged structure of a main part of the mobile phone. FIG. 4 is a perspective view showing a schematic configuration of the mobile phone. In the first embodiment, an example in which a rear display element serving as a sub display unit is provided on the rear side of the first housing is shown.
As shown in FIGS. 1 to 4, the cellular phone 10 according to the first embodiment includes a display unit (a main display unit and a sub display unit) that displays character information or image information. 1 and a second housing 2 made of, for example, a mold resin that includes an operation unit on which a plurality of information input keys such as a numeric keypad are arranged are connected to each other through a hinge unit 3 so as to be openable and closable. An opening 4 is formed in the housing 1, and an endless frame (a component part) made of a sheet metal that protrudes into the opening 4 along the periphery of the opening 4 on the inner surface of the first housing 1. As is apparent from the enlarged structure of FIG. 3, the attachment portion 5) is directly fixed by heat caulking. Reference numeral 6 denotes a heat caulking portion.

  As shown in FIG. 4, the heat caulking portion 6 by the frame body 5 is provided at a plurality of locations along the length direction of the endless shape of the frame body 5 so that sufficient attachment strength can be obtained. The For example, SUS (Steel special Use Stainless) is used as the material of the sheet metal constituting the frame body 5 and is formed to a thickness of 0.25 to 0.35 mm as an example. Here, since the sheet metal constituting the frame 5 serving as the component mounting part has a high rigidity characteristic, the strength of the frame 5 constitutes the conventional component mounting part. It is larger than the strength of the mold resin of the first housing. Therefore, even if the frame body 5 having a thickness smaller than that of the conventional one is used, sufficient strength that is substantially the same as or larger than that of the conventional one can be ensured. Moreover, since the frame body 5 is directly fixed to the first housing 1 by heat caulking, which is excellent as a fixing means, the frame body 5 utilizing the high rigidity of the sheet metal as it is can be obtained.

  The frame 5 fixed directly to the upper housing 1 serves as a screen mounting portion, and a screen 7 made of a transparent material such as acrylic is attached to a double-sided tape (adhesive) on the outer surface of the frame 5. ) 8 is attached. On the other hand, a rear display element (sub-display unit) 11 made of, for example, organic EL is disposed on an inner side surface of the frame body 5 via an endless cushion material 9 that is substantially the same shape as the frame body 5. The rear display element 11 is attached to a position (not shown) of the first housing 1 and arranged to push up the cushion material 9.

  With such a configuration, even when both the housings 1 and 2 are closed, the reception information such as the telephone number of the other party can be obtained by viewing the rear display element 11 as the sub display unit through the screen 7. Can be confirmed. The cushion material 9 serves as a cushioning material that acts so that the frame 5 is not directly pushed up (not contacted) by the back light emitting element 11, and in the space between the back light emitting element 11 and the screen 7. It plays a role as a dustproof material that acts to prevent dust from entering. In FIG. 4, reference numeral 12 denotes a rib formed on the inner surface of the first housing 1, which plays a role of ensuring the strength of the first housing 1.

As described above, according to the configuration of the mobile phone 10 according to the first embodiment, the first casing 1 including the display unit that displays the received information and the second casing including the operation unit in which the information input key is arranged. 2 is configured to be openable and closable via a hinge portion 3, an opening 4 is formed in the first housing 1, and an inner surface of the first housing 1 is formed on the periphery of the opening 4. An endless frame 5 made of a sheet metal extending along the side and projecting into the opening 4 is directly fixed by heat caulking. Therefore, by utilizing the high rigidity of the sheet metal, a thin frame 5 can be used. Sufficient strength can be ensured.
Accordingly, it is possible to reduce the thickness without reducing the strength of the component mounting portion such as the screen mounting portion.

Embodiment 2

FIG. 5 is a cross-sectional view showing an enlarged structure of the main part of the mobile phone according to Embodiment 2 of the present invention. The configuration of the mobile phone according to the second embodiment is greatly different from that of the first embodiment described above in that the frame fixing means made of sheet metal is changed.
That is, as shown in FIG. 5, the mobile phone 15 according to the second embodiment has an endless frame made of a sheet metal that extends along the periphery of the opening 4 and protrudes into the opening 4 on the inner surface of the first housing 1. The body 5 is directly fixed by a screwing portion 14 using a screw 13. Then, as shown in FIG. 3 in the first embodiment, the screwing portions 14 are provided at a plurality of locations along the length direction of the endless shape of the frame body 5 so that sufficient mounting strength can be obtained. Considered. In the example in which the frame 5 is directly fixed to the first housing 1 by screwing in this way, the screw 13 can be replaced when the fixing portion is damaged, so that the repairing property is excellent. The advantage is obtained.
Except this, it is substantially the same as the first embodiment described above. Therefore, in FIG. 5, each part corresponding to the constituent part in FIG. 4 is given the same number, and the description thereof is omitted.

  As described above, according to the mobile phone 15 according to the second embodiment, since the fixing means for the first casing of the frame body made of sheet metal is different, it is possible to obtain substantially the same effect as that of the first embodiment, in addition to the repeater. The effect of being rich in nature can be obtained.

Embodiment 3

FIG. 6 is a cross-sectional view showing a schematic configuration of a mobile phone according to Embodiment 3 of the present invention. The configuration of the mobile phone according to the third embodiment is greatly different from that of the first embodiment described above, in which a frame body made of sheet metal is attached to the front side of the first housing having the main display portion, and the inner surface of the frame body. A camera is attached in place of the display element.
That is, as shown in FIG. 6, the cellular phone 20 according to the third embodiment has an opening 4 </ b> A formed in the first housing 1, and the inner surface of the first housing 1 has a periphery of the opening 4 </ b> A. An endless frame body 5A made of a sheet metal projecting along the opening 4A is directly fixed by heat caulking. Further, a screen 7A made of a transparent material such as acrylic is attached to the outer surface of the frame 5A via a double-sided tape 8A, while the inner surface of the frame 5A has substantially the same shape as the frame 5A. The camera 16 is attached via an endless cushion material 9A.

  As described above, the cellular phone 20 according to the third embodiment is different in that the frame body made of sheet metal is attached to the front side of the first housing and the camera is attached to the inner surface of the frame body. The effect similar to 1 can be obtained.

Embodiment 4

FIG. 7 is a cross-sectional view showing a schematic configuration of a mobile phone according to Embodiment 4 of the present invention. The configuration of the cellular phone according to the fourth embodiment is greatly different from that of the first embodiment described above. A frame body made of sheet metal is attached to the front side of the first housing having the main display portion, and a sheet is used instead of the screen. A material is attached and a speaker is attached in place of the display element.
That is, as shown in FIG. 7, the cellular phone 25 according to the fourth embodiment has an opening 4 </ b> A formed in the first housing 1, and the inner surface of the first housing 1 has a periphery of the opening 4 </ b> A. An endless frame body 5A made of a sheet metal projecting along the opening 4A is directly fixed by heat caulking. Further, a sheet material 17 such as a speaker net is attached to the outer surface of the frame body 5A via a double-sided tape 8A, and the inner surface of the frame body 5A is substantially the same shape and endless shape as the frame body 5A. The speaker 18 is attached via the cushion material 9A.

  As described above, according to the cellular phone 25 according to the fourth embodiment, the frame body made of sheet metal is attached to the front side of the first housing, and the sheet material and the speaker are attached to the outer side surface and the inner side surface of the frame body, respectively. Therefore, the same effect as that of the first embodiment can be obtained.

Embodiment 5

FIG. 8 is a cross-sectional view showing a schematic configuration of a mobile phone according to Embodiment 5 of the present invention. The configuration of the cellular phone according to the fifth embodiment is greatly different from that of the first embodiment described above, in which a frame body made of sheet metal is attached to the front surface side of the first housing having the main display portion, and the inner surface of the frame body. This is the point that a front display element made of LCD is attached.
That is, as shown in FIG. 8, the cellular phone 30 according to the fifth embodiment has an opening 4 </ b> A formed in the first housing 1, and a peripheral edge of the opening 4 </ b> A on the inner surface of the first side housing 1. An endless frame body 5A made of a sheet metal projecting into the opening 4A is directly fixed by heat caulking. Further, a front display element (main display portion) 19 made of LCD is attached to the inner side surface of the frame body 5A via an endless cushion material 9A that is substantially the same shape as the frame body 5A.

  As described above, the cellular phone 30 according to the fifth embodiment is different in that a frame body made of sheet metal is attached to the front side of the first housing and a front display element made of LCD is attached to the inner side surface of the frame body. Therefore, substantially the same effect as in the first embodiment can be obtained.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and the present invention can be changed even if there is a design change or the like without departing from the gist of the present invention. include. For example, in each embodiment, a mobile phone has been described as an example of the mobile communication terminal device. However, the present invention is not limited to this, and other mobile communication terminal devices such as a PDA (Personal Digital Assistant) are generally used. Can be applied. Moreover, although the metal plate which comprises the frame as a component attachment part demonstrated in the example which uses a stainless plate, if it is a highly rigid material, it will not be limited to this, and other materials, such as a steel plate, an aluminum plate, a copper plate, are used. You can also. Moreover, the thickness dimension of the stainless steel plate shown by description of embodiment shows an example, and can be changed arbitrarily according to the objective, a use, etc. Further, heat caulking or screwing as a fixing means for directly fixing the frame body to the housing can be applied to either the front side or the back side of the first housing. In addition, when the display element is arranged on at least one of the front side or the back side of the first housing, any display element can be arranged on any side. Further, the fixing means is not limited to heat caulking or screwing, but an adhesive such as double-sided tape can also be used.

It is a perspective view which shows schematic structure of the mobile telephone which is Embodiment 1 of this invention. It is sectional drawing which shows schematic structure of the mobile phone. It is sectional drawing which shows the enlarged structure of the principal part of the mobile phone. It is a perspective view which shows schematic structure of the mobile phone. It is sectional drawing which shows the enlarged structure of the principal part of the mobile telephone which is Embodiment 2 of this invention. It is sectional drawing which shows schematic structure of the mobile telephone which is Embodiment 3 of this invention. It is sectional drawing which shows schematic structure of the mobile telephone which is Embodiment 4 of this invention. It is sectional drawing which shows schematic structure of the mobile telephone which is Embodiment 5 of this invention. It is sectional drawing which shows schematic structure of the conventional mobile telephone. It is a perspective view which shows schematic structure of the conventional mobile telephone. It is sectional drawing which shows schematic structure of the conventional mobile telephone.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st housing | casing 2 2nd housing | casing 3 Hinge part 4, 4A Opening part 5, 5A Frame (component mounting part)
6, 6A Heat caulking part 7, 7A Screen 8, 8A Double-sided tape (adhesive)
9, 9A Cushion material (buffer material)
10, 15, 20, 25, 30 Mobile phone (mobile communication terminal device)
11 Rear display element (sub display unit)
12 Ribs 13 Screws 14 Screwing portions 16 Camera 17 Sheet material 18 Speaker 19 Front display element (main display portion)

Claims (6)

A first casing having a display unit for displaying received information and a second casing having an operation unit on which an information input key is arranged are configured to be openable and closable. A main display unit that sometimes displays the reception information on the front side of the first casing; and a sub-display unit that displays the reception information on the back side of the first casing when the two casings are closed. And comprising a component mounting portion on at least one of the front side or the back side of the first housing, and the first component is mounted on the outer surface of the component mounting portion, and the component mounting A mobile communication terminal device in which the second component is disposed on the inner surface of the unit,
The mobile communication terminal device according to claim 1, wherein the component attachment portion is made of a sheet metal whose outer surface is directly attached to the first casing by a fixing means.   2. The portable communication terminal device according to claim 1, wherein the fixing means is heat caulking or screwing.   The first component is attached to the outer surface of the component attachment portion via an adhesive, while the second component is disposed on the inner surface of the component attachment portion via a cushioning material. The portable communication terminal device according to claim 1 or 2, characterized by the above-mentioned.   4. The portable communication terminal device according to claim 1, wherein the first component is a screen, and the second component is a display element.   The mobile communication terminal device according to claim 4, wherein the second component is a camera instead of the display element.   4. The portable communication terminal device according to claim 1, wherein the first component is a sheet material, and the second component is a speaker.

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