JP2002051369A - Portable radio equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide portable radio equipment, capable of tightly retaining a substrate or a liquid crystal display part in one case body, without generating the molding complicated for the case body. SOLUTION: Holding pins 11 are integrally molded on the face of one case 10a opposite to the other case, so that a liquid crystal display part 14 is surrounded ; and parts 14b to be held are formed at the peripheral edge part of the liquid crystal display part 14, so as to be engaged with the holding pins 11, by imposing the liquid crystal display part 14 on the other case 10a, almost in parallel with respect to the erected directions of the holding pins 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a portable radio device having a liquid crystal display.

[0002]

2. Description of the Related Art In recent years, various small portable radio apparatuses such as portable telephones have been developed. For example, FIG.
As shown in FIG. 5, as a schematic configuration, a holder 5 is provided inside a case 50 including a front case 50a and a back case 50b.
4, a liquid crystal display unit including a light guide plate 55 and a liquid crystal display (LCD) 56 and the like, and a substrate 53 are provided. The holder 54 is fixed to the substrate 53 by inserting a pin 54 a protruding from the substrate 53 into a hole 53 a provided in the substrate 53. Further, the holder 54 has an LCD 56
LC through a light guide plate 55 that guides the backlight to
D56 is fixedly held. The substrate 53 includes a front case 50a.
When screwed together with the back case 50b,
It is fixed in the case 50.

As a portable wireless device, there has been developed a device in which a housing is divided into an upper portion and a lower portion so as to be foldable, and operability at the time of transmission / reception is ensured while being easily stored in a pocket or a bag. I have.

[0004]

In the conventional portable wireless device, the substrate 53 and the liquid crystal display were not fixed to the front case 50a or the back case 50b until the front case 50a and the back case 50b were combined. Therefore, in the manufacturing process, for example, when assembling the substrate 53, the liquid crystal display unit, and other components to the back case 50b while transporting the back case 50b,
In some cases, the liquid crystal display unit is shifted from its normal position. Further, it has not been possible to assemble parts by turning over the back case 50b. Also, in the manufacturing process of the foldable portable wireless device, components are assembled to the front case of the upper housing while the front case of the lower housing is connected to the front case via a hinge while being conveyed. However, if the front case of the upper case and the front case of the lower case are connected in a bent state at the hinge part, the stability of the front case on the carrier is poor, and the board and the liquid crystal display are in the correct position. Particularly easily deviates from In some cases, the casing is formed of metal for the purpose of improving the strength of the casing. In this case, in order to hold the liquid crystal display unit, a complicated shape such as a locking claw is used for the casing. It was difficult to integrally mold. The present invention has been made in view of the above circumstances, and its purpose is to prevent the molding of the housing from being complicated.
It is an object of the present invention to provide a portable wireless device capable of securely holding a substrate and a liquid crystal display portion in one housing.

[0005]

According to a first aspect of the present invention, there is provided a portable wireless device comprising a pair of housing cases, wherein the holding member holds an electronic component in the housing case. In the portable wireless device to which the holding case is attached, one of the housing cases is integrally formed with a holding pin for holding a holding member, and the holding member is attached to the housing case substantially in parallel with the standing direction of the holding pin. It is characterized in that it is assembled and held by engaging with the holding pin. Further, in the portable wireless device according to claim 4 of the present invention, in a portable wireless device in which a liquid crystal display unit is mounted inside a casing formed of a pair of cases, a surface of one case facing a second case is provided. A holding pin is integrally formed so as to surround the liquid crystal display portion, and the liquid crystal display portion is attached to the one case at a peripheral portion of the liquid crystal display portion substantially in parallel with a standing direction of the holding pin. A held portion engaged with the holding pin is provided. In this portable wireless device, the liquid crystal display unit can be fixed or temporarily fixed to one case before combining one case and the other case. Therefore, in the manufacturing process, when assembling the liquid crystal display unit, the circuit board, and other components to the case while transporting one case, the liquid crystal display unit does not deviate from a normal position in the case. . Also,
Since the supported portion is shaped so as to be engaged with the holding pin by assembling the liquid crystal display portion to one case substantially parallel to the standing direction of the holding pin, the one case of the liquid crystal display portion It is easy to automate the work of assembling. Further, it is possible to assemble other parts by turning over the case with the liquid crystal display unit assembled. Although the form of the holding pin is not limited, a columnar shape or the like can be exemplified. Such a holding pin can be easily provided in one case.For example, even when one case is formed of a material such as metal which is relatively difficult to form, the holding pin can be easily provided in the one case. it can.

[0006] The portable radio apparatus according to the second and fifth aspects of the present invention is characterized in that, in the above configuration, one case is formed of metal. Claim 3 of the present invention
In the portable wireless device described in (6) and (7), one of the cases is formed of magnesium. According to such a portable wireless device, the durability of the portable wireless device can be increased by increasing the strength of the housing. In addition, by using magnesium, the portable wireless device can be made thinner and lighter.

According to a seventh aspect of the present invention, in the portable radio device according to the above configuration, the held portion locks the liquid crystal display portion to the one case by an elastic repulsive force generated by engagement with the holding pin. Features. Further, the portable wireless device according to claim 8 of the present invention, in the above configuration,
The held part is formed in a shape surrounding at least a part of the outer periphery of the holding pin. According to such a portable wireless device, by providing the held portion with elasticity, it is possible to easily assemble the liquid crystal display portion to one case, and to remove the once assembled liquid crystal display portion from the case. The liquid crystal display can be firmly held in the case without being displaced from a regular position in the case.

According to a ninth aspect of the present invention, in the portable radio device according to the above configuration, a locking portion for locking the circuit board is provided on a peripheral portion of the liquid crystal display portion.
According to such a portable wireless device, the liquid crystal display unit and the circuit board can be assembled and assembled to one case at the same time. In addition, when the liquid crystal display unit and the circuit board are assembled, the case can be turned over to assemble other components.

[0009] In a portable wireless device according to a tenth aspect of the present invention, the first housing and the second housing comprising a pair of cases and the first housing and the second housing are mutually connected. A hinge portion rotatably connected to the first housing and the second housing by rotating the first housing and the second housing about the hinge portion. It is possible to fold,
In a foldable portable wireless device in which a liquid crystal display unit and a circuit board are mounted inside at least one of the first housing and the second housing, a surface of one case facing the other case is provided. A holding pin is integrally formed so as to surround the liquid crystal display portion, and the liquid crystal display portion is attached to the one case substantially in parallel with a standing direction of the holding pin on a peripheral portion of the liquid crystal display portion. A holding portion engaged with the holding pin is provided. According to this foldable portable wireless device, when assembling parts in a state where one case of the first housing and one case of the second housing are connected in a state of being bent at the hinge portion, However, the liquid crystal display does not deviate from the normal position in one of the cases. In addition, the case can be turned upside down with the liquid crystal display section assembled, and other parts can be assembled.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a portable radio apparatus according to the present invention will be described below in detail with reference to the drawings.
In the present embodiment, a foldable mobile phone will be described as a specific example of a mobile wireless device. Figure 1
1A is a front view, FIG. 2B is a side view, and FIG. 2 is an external perspective view showing a folded state of the foldable mobile phone.

As shown in FIG. 1, the foldable portable telephone 100 has a housing divided into an upper housing (second housing) 10 and a lower housing (first housing) 20. Body 1
0 and the lower housing 20 are rotatably connected to each other by a hinge part 30. By rotating the upper housing 10 of the mobile phone 100 about the hinge 30,
The upper housing 10 can be folded until it comes into contact with or substantially comes into contact with the lower housing 20. As a result, a folded state can be obtained as shown in FIG. The upper case 10 and the lower case 20 are each a combination of a front case and a back case, and the front case (the left case in FIG. 1B) in FIG. Case.

An upper housing 10 of the mobile phone 100 is provided with a receiver 12 and a liquid crystal display 14 having a receiver (speaker) for emitting sound such as voice. The lower housing 20 is provided with a transmitter 28 having a microphone 22 for detecting sound such as voice, a key operation unit 24, a battery 26, and the like.

The key operation unit 24 of the lower housing 20 includes a switch for turning on / off the mobile phone 100, keys for inputting alphanumeric characters and characters, and function keys for selecting and executing various functions. It is. Also, the key operation unit 24
A relatively heavy battery 26 is removably attached to the back surface of the mobile phone 100, and the center of gravity of the mobile phone 100 is positioned in the lower housing 20 to obtain gripping stability.

Further, one side surface of the lower housing 20 (FIG. 1)
On the left side in (a), an antenna accommodating portion 42 for accommodating the antenna 40 is disposed substantially parallel to the longitudinal direction of the lower housing 20. The antenna 40 is, for example, a whip antenna, and is provided on the lower housing 20 so as to be able to expand and contract. That is, the antenna 40 is pulled out to the side of the upper housing 10 as shown in FIG. 1 when extended, and is directed in a direction away from the human body side in use, while the antenna 40 is in a stowed state as shown in FIG. Are stored in the antenna accommodating portion 42. In the present embodiment, as shown in FIG. 2, the second liquid crystal display unit 25 is provided on the back case side of the upper housing 10.

Here, in the above-mentioned portable telephone 100, since the antenna 40 is provided on the lower housing 20 side, the connection distance with the radio circuit accommodated in the lower housing 20 is short. This has the advantage that power consumption can be suppressed and reception sensitivity can be increased.

FIG. 3 is a perspective view of the front case 10a of the upper housing and the front case 20a of the lower housing as viewed from the inside. The surface direction of the front case 10a of the upper housing is not parallel to the surface direction of the front case 20a of the lower housing, and these front cases 10a and 20a are connected by a hinge portion 30 in a bent state. In this state, each table case 10
Various components are assembled to the components a and 20a. Inside the front case 10a of the upper housing, a liquid crystal display unit 14, a second liquid crystal display unit 25, a sub-circuit board 15 including a driver circuit and the like of the liquid crystal display units, a speaker 12a of a reception unit, and the like are accommodated. The liquid crystal display unit 14, the sub-circuit board 15, and the second liquid crystal display unit 25 are assembled in the front case 10a in an assembled state. These assembly structures will be described later. The front case 10a of the upper housing is formed of a metal such as magnesium. Inside the front case 20a of the lower housing, a main circuit board 16 including a radio circuit on which electronic components such as a CPU for processing various signals and a memory for storing various information are mounted, a microphone 22 for a transmission section, and the like Is accommodated.
The front case 20a of the lower housing is formed of resin. The sub-circuit board 15 and the main circuit board 16 are connected via a flexible board 18, and various transmission signals are transmitted and received between the circuit boards. The flexible board 18 connects the circuit boards 15 and 16 through the inside of the hinge part 30.

A plurality of (here, three) holding pins 11 are integrally formed on the inner surface of the front case 10a (the surface facing the back case) of the upper housing so as to surround the liquid crystal display unit 14. Here, two holding pins 11 are provided at an interval along one side in the longitudinal direction of the inner surface of the front case 10a, and one holding pin is provided on the other side in the longitudinal direction. One holding pin 11 provided on the other side in the longitudinal direction is located in the middle of the two holding pins 11 provided on one side in the longitudinal direction. Here, each holding pin 11 is formed in a substantially columnar shape, and its tip is formed in a hemispherical shape as a guide surface of a supported portion 14b described later. Note that the tip of each holding pin 11 may be a tapered surface or the like as a guide surface. The direction in which the holding pins 11 are erected coincides with the direction in which the liquid crystal display unit 14 is assembled, so that the liquid crystal display unit 14 can be smoothly assembled.

The liquid crystal display section 14 has a structure in which an LCD and a backlight are held in a holder 14a having a substantially rectangular shape in plan view. The holder 14a is formed from a resin. A long side, which is a part of the peripheral portion of the holder 14a, extends along the longitudinal direction of the front case 10a. On its long side,
A supported portion 14b is provided at a predetermined position corresponding to the holding pin 11. That is, two supported portions 14b are provided on one long side (the long side on the near side in the figure) of the holder 14a at a distance from each other, and one supported portion 14b is provided on the other long side. Is provided. Each supported portion 14b is integrally formed with the holder 14a.

Each supported portion 14b is formed in a substantially U-shape with side plates rising from both sides of the back plate, and each back plate is connected to the holder 14a. The side plate of each supported part 14b protrudes from the outer wall on the long side of the holder 14a. Each supported portion 14b is substantially U-shaped when viewed along the axial direction of the holding pin 11, and can be said to have a shape surrounding a part of the outer peripheral surface of the holding pin 11. In addition, each supported part 14b is
Since the resin has such a shape, it has a predetermined elasticity.

As shown in FIG. 4, the inner surface (the inner surface of one of the side plates, the inner surface of the back plate, and the inner surface of the other side plate) of the supported portion 14b of the liquid crystal display portion 14 has a cylindrical holding pin 11 (FIG. 3). (See FIG. 2). Further, the holder 14a of the liquid crystal display unit 14 has locking claws 14c on both long sides for locking predetermined portions of the peripheral portion of the sub-circuit board 15. Also, on both long sides of the holder 14a,
A recess 14d is provided in order to prevent interference with a locking claw 25c of the second liquid crystal display unit 25 described later. Positioning pins 14e to be inserted into the sub-circuit board 15 are provided at predetermined positions on the surface of the liquid crystal display unit 14 facing the sub-circuit board 15.

The holder 25a of the second liquid crystal display unit 25 also has a locking claw 25c for locking a predetermined portion of the peripheral portion of the sub-circuit board 15.
Are provided on both long sides. On the short side of the holder 25a, a positioning pin 25e to be inserted into the sub-circuit board 15 is provided. The sub-circuit board 15 is fixed to the locking claw 1 of the liquid crystal display unit 14.
The liquid crystal display unit 14, the sub-circuit board 15, and the second liquid crystal display unit 25 are in an assembled state by being locked by the locking claw 25c of the second liquid crystal display unit 25 while being locked by 4c. At this time, the locking claw 25c of the second liquid crystal display unit 25
It fits into the concave portion 14d of the liquid crystal display unit 14.

The liquid crystal display unit 14, the sub-circuit board 15, and the second liquid crystal display unit 25 assembled as described above are moved substantially parallel to the direction in which the holding pins 11 are erected, as shown in FIG. 10a is assembled simultaneously. At this time, a part of the outer peripheral surface of the holding pin 11 slides on the inner surface of the supported portion 14b. More specifically, the holding pin 11 is inserted into the supported portion 14b while being elastically deformed by the holding pin 11 so as to slightly widen the side plates of the supported portion 14b.
Note that a large external force is not required for this assembling operation.
Thus, the liquid crystal display unit 14, the sub-circuit board 15, and the second liquid crystal display unit 25 are temporarily fixed to the front case 10a. In this temporarily fixed state, even if the front case 10a is turned over, the liquid crystal display unit 14, the sub-circuit board 15, and the second liquid crystal display unit 25
Is not detached from the front case 10a or displaced in the front case 10a.

According to the foldable portable telephone 100 configured as described above, the supported portion 14b of the liquid crystal display unit 14 is
By assembling the liquid crystal display unit 14 to the front case 10a substantially parallel to the direction in which the holding pins 11 are erected, the supported portion 14b and the holding pins 11 are engaged with each other. The assembling work is easy, and the assembling work can be easily automated. Then, the front case 10 of the upper housing 10
Before the combination of a and the back case, the liquid crystal display unit 1
4. The sub-circuit board 15 and the second liquid crystal display unit 25 can be temporarily fixed to the front case 10a. Therefore, after assembling the liquid crystal display section 14, the sub-circuit board 15, and the second liquid crystal display section 25 to the front case 10a, it is easy to assemble other parts, and the assembling work of these other parts is also automated. easy.

Further, since the holding rib 11 is substantially cylindrical, the holding case 1a is attached to the front case 10a of the upper case 10 despite the fact that the case 10a is formed of metal.
1 can be easily provided.

It should be noted that the present invention is not limited to the above-described embodiment, and appropriate modifications and improvements can be made.
For example, the present invention is effective even when the material of one of the cases provided with the holding pins is made of resin. For example, the holding pins may be wall-shaped (rib-shaped). For example, the supported portion may be ring-shaped.

[0026]

As described above, according to the present invention,
The liquid crystal display unit and the circuit board can be securely held in one of the housings without complicating the molding of the housing. In addition, it is easy to automate the work of assembling parts.

[Brief description of the drawings]

FIGS. 1A and 1B are overall external views of a foldable mobile phone, wherein FIG. 1A is a front view and FIG. 1B is a side view.

FIG. 2 is an external perspective view illustrating a folded state of the foldable mobile phone.

FIG. 3 is an inner side perspective view of a front case of an upper housing and a lower housing.

FIG. 4 is an exploded perspective view illustrating an assembly structure of a liquid crystal display unit, a sub circuit board, and a second liquid crystal display unit.

FIG. 5 is an exploded perspective view of a conventional liquid crystal display unit holding structure.

[Explanation of symbols]

REFERENCE SIGNS LIST 100 Foldable mobile phone (portable wireless device) 10 Upper housing 10a Front case (one case) 11 Holding pin 14 Liquid crystal display 14a Holder 14b Supported part 14c Locking claw (locking part) 15 Sub-circuit board (circuit) Substrate) 20 Lower housing 20a Front case (one case) 25 Second liquid crystal display

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Taku Suzuki 4-3-1 Tsunashima Higashi, Kohoku-ku, Yokohama, Kanagawa Prefecture Inside Matsushita Communication Industrial Co., Ltd. No.3-1, Matsushita Communication Industrial Co., Ltd. (72) Inventor Masao Kobayashi 4-3-1 Tsunashimahigashi, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture F-term, Matsushita Communication Industrial Co., Ltd. ED23 ED27 EE02 GB26 GC04 5E348 AA09 AA15 AA18 FF03 5K023 AA07 BB04 DD06 DD08 HH07 LL01 LL06 LL07 PP02 PP12 QQ02 RR01 RR08 5K067 AA44 BB04 FF23 KK17

Claims (15)

[Claims] 1. A portable wireless device comprising a pair of housing cases and mounting a holding member for holding an electronic component in the housing case, wherein one of the housing cases is formed integrally with a holding pin for holding the holding member. The portable wireless device is characterized in that the holding member is assembled to the housing case substantially parallel to a direction in which the holding pins are erected, and is held by engaging with the holding pins. 2. The portable wireless device according to claim 1, wherein said one housing case is formed of metal. 3. The portable wireless device according to claim 1, wherein said one housing case is formed of magnesium. 4. A portable wireless device in which a liquid crystal display unit and a circuit board are mounted inside a housing composed of a pair of cases, wherein one of the cases is arranged so as to surround the liquid crystal display unit on a surface facing the other case. A pin is integrally formed, and the liquid crystal display portion is attached to the one case at a peripheral portion of the liquid crystal display portion substantially parallel to a direction in which the holding pin is erected. A portable wireless device characterized by comprising a unit. 5. The portable wireless device according to claim 4, wherein said one case is formed of metal. 6. The portable wireless device according to claim 4, wherein said one case is made of magnesium. 7. The liquid crystal display section is locked to the one of the cases by an elastic repulsion generated by the held section to be engaged with the holding pin. Portable wireless device. 8. The portable wireless device according to claim 7, wherein the held portion is formed in a shape surrounding at least a part of an outer periphery of the holding pin. 9. The portable wireless device according to claim 4, wherein a locking portion for locking the circuit board is provided on a peripheral portion of the liquid crystal display portion. And a first housing and a second housing each comprising a pair of cases, and a hinge portion that rotatably connects the first housing and the second housing to each other, By rotating the first housing and the second housing about the hinge, the first housing and the second housing can be folded, and the first housing can be folded. And a foldable portable wireless device in which a liquid crystal display unit and a circuit board are mounted inside at least one of the second casing, wherein a surface of one case facing the other case surrounds the liquid crystal display unit. A holding pin is integrally formed, and is engaged with the holding pin by assembling the liquid crystal display section to the one case at a peripheral portion of the liquid crystal display section substantially in parallel with a standing direction of the holding pin. A foldable portable device characterized by having a held portion. Wireless devices. 11. The foldable portable wireless device according to claim 10, wherein said one case is formed of metal. 12. The foldable portable wireless device according to claim 10, wherein said one case is formed of magnesium. 13. The liquid crystal display section is locked to the one case by an elastic repulsion generated by the held section engaging with the holding pin.
13. The foldable portable wireless device according to any one of 12 above. 14. The portable wireless device according to claim 13, wherein the held portion is formed to surround at least a part of an outer periphery of the holding pin. 15. The foldable portable wireless device according to claim 10, wherein a locking portion for locking the circuit board is provided on a peripheral portion of the liquid crystal display portion. .