JPH098690A - Portable communication device - Google Patents

Abstract

PURPOSE: To increase the strength of a fount housing made of resin, to prevent the housing from being damaged, and to prevent characters on the housing from disappearing by covering the operation part of the housing and the periphery of an LCD display part with an Al panel. CONSTITUTION: A step part 10 where a protective glass 9 is arranged and a step part 11 where an Al panel 2 is arranged are formed in a front housing 1a. That is, the glass 9 has a tempered glass 9b on the inside and has a sapphire glass 9a on the outside and is stuck into the step part 10 by a trimming frame 14. On the design, a two-stage structure is given to the trimming frame 14, and the large-sized tempered glass is fitted to the first stage, and the slightly smaller-sized sapphire glass 9a is fitted to the second stage. The glass 9a and the glass 9b are stuck into one body. Next, the panel 2 is attached by thermal press-fitting. Pins 15 are force-fitted to four corners for the purpose of preventing the panel 2 from floating. Thus, the strength of the housing is improved, and the housing is prevented from being damaged, and characters on the housing are prevented from disappearing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a cellular telephone, a PH.
The present invention relates to a housing structure of a portable communication device that is downsized so as to be convenient for carrying such as an S mobile device.

[0002]

2. Description of the Related Art A mobile phone has a telescopic antenna and a built-in antenna housed in a housing. The front housing and the rear housing are made of resin and are integrally molded so as to wait for a call or call while the antenna is housed.

[0003]

However, a mobile phone is easily scratched by friction such as putting it in and out of a pocket. In particular, characters indicating the function of each button are displayed by silk-screen printing or the like on the operation input section in which the operation buttons are arranged including the numeric keypad, but they disappear due to friction.
Also, when the liquid crystal display is damaged, it is difficult to see and becomes dirty.
In addition, there is a risk of falling when putting in and out.

A first object of the present invention is to make a housing of a portable communication device such as a portable telephone, etc. less likely to be scratched and to increase its strength. The second purpose is to achieve the first purpose without impairing the antenna functions such as electric field strength and speech quality.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a portable communication device in which a part or the whole of a housing is placed at a position away from a fed antenna so as not to substantially affect a call. The housing is made of a metal material, and the portion of the housing other than the metal material is made of a resin material.

Further, the portable communication device of the present invention is a portable communication device in which a housing is made of a resin material. Attach a metal exterior panel at a remote location. This housing is provided with operation button array portions at positions apart from the power-supplied antenna so that the exterior panel does not substantially affect the call, and holes are formed to project the operation buttons on which the exterior panel is arrayed. A groove is formed in the shape of a character, a figure, or a symbol indicating the function name of the operation button in the vicinity of the hole, and the groove is attached to the operation button array portion.

Further, the portable communication device of the present invention is a portable communication device in which a housing is made of a resin material, and the housing has an antenna housing portion and an ear speaker portion at an upper portion, and a liquid crystal display portion and an operation button arrangement portion below the housing. Are arranged in order,
A metal exterior panel is attached that covers the liquid crystal display and the operation button array and has openings for exposing the liquid crystal and projecting each operation button.The location of the liquid crystal display and the operation button array depends on the exterior panel. It is separated from the antenna housing so that it does not substantially affect the call. In addition, a sapphire glass that protects the liquid crystal is arranged on the liquid crystal display portion of the housing, and is sandwiched by the housing by the exterior panel.

In the portable communication device of the present invention, sapphire glass is attached to the window of the housing in which the liquid crystal is placed.

The exterior panel is fixed to the housing with a plurality of screws or pins to prevent the exterior panel from floating from the surface of the housing.

Further, in the sapphire glass, it is more cost effective to integrally increase the strength of the sapphire glass and the translucent high-strength plate such as tempered glass than to increase the strength of the sapphire glass alone. Is advantageous to.
In this case, the sapphire glass is exposed to the outside, and the high strength plate is arranged between the liquid crystal and the sapphire glass.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a mobile phone for explaining an embodiment of the present invention. A resin housing 1 (1a is a front housing), an aluminum panel 2, an ear speaker unit 3, a liquid crystal (LCD) display unit 4, a numeric keypad and An operation unit 5 in which various operation buttons are arranged, a microphone unit 6, an antenna cap 7,
The retractable antenna knob 8 is indicated by a symbol. In addition, LCD
The display unit 4 is protected by a protective glass 9 which is an integral unit of sapphire glass and tempered glass. The housing 1 is made of resin not only on the front side but also on the back side. First, an antenna structure (see Japanese Patent Application No. 5-85406) will be described. The telescopic antenna knob 8 is a resin attached to the head of the 1/2 wavelength rod antenna, and is used to pull out the 1/2 wavelength rod antenna housed in the housing. Further, the antenna cap 7 is a resin cap, and a quarter wavelength spiral antenna is internally fixed in this portion. 1 /
The two-wavelength rod-shaped antenna passes through the quarter-wavelength spiral antenna and is pulled out and stored. Also, the antenna cap 7
Is to be removed for replacement when the 1/2 wavelength rod-shaped antenna is damaged, etc., and a screw for screwing to the housing is cut inside. Power is supplied from the wireless circuit inside the telephone to the fixed 1/4 wavelength spiral antenna, and 1/4 when the 1/2 wavelength rod antenna is stored.
Only the wavelength spiral antenna functions, and when the 1/2 wavelength rod-shaped antenna is pulled out, the lower end of the 1/2 wavelength rod-shaped antenna and the 1/4 wavelength helical antenna are electromagnetically coupled to each other to reduce the electromagnetic field to 1/2.
Functions as a wavelength antenna.

The housing 1 is made of a resin material so as not to have a great influence on the above-mentioned antenna function and not to deteriorate the call quality and the electromagnetic field strength. An aluminum panel 2 is attached to the center of the front housing 1a. The aluminum panel 2 is designed to improve the strength of the housing, prevent the front part from being scratched, and prevent letters from disappearing.
That is, the protective glass 9 that protects the D display unit 4 is sandwiched. Sapphire glass is used on the outside of the protective glass 9 to keep the LCD display unit 4 easy to see and beautiful for a long period of time.

The aluminum panel 2 is laid out below the ear speaker section 3 so that it does not affect the above-mentioned antenna function and does not deteriorate the call quality and electromagnetic field strength.

Each operation button of the operation portion 5 is a convex portion integrally formed on one translucent rubber sheet, and this rubber sheet is protruded from the inside of the front housing 1a by fitting each convex portion into each button hole. Only the part is projected on the surface. Grooves were formed in the shape of letters, figures, or symbols on the surface of each operation button when the rubber sheet was formed, and the grooves were colored. The characters, figures, or symbols are displayed not only on the operation buttons but also on the aluminum panel 2.

The aluminum panel 2 is provided with holes similar to the front housing 1a so that the respective operation buttons can be projected.
Grooves in the shape of letters, figures, or symbols related to the operation buttons to be projected were formed around each hole by etching and colored. In the case of a mobile phone, in order to reduce the size and cost, one operation button is made to have various functions to reduce the number of buttons, and thus many displays are required.

Next, the mounting structure of the aluminum panel 2 and the protective glass 9 will be described with reference to FIGS. FIG. 2 is an exploded perspective view of a housing and an aluminum panel according to an embodiment of the present invention, and shows the order of attaching the aluminum panel 2 by sandwiching the protective glass 9 in the front housing 1a.
The front housing 1a is provided with a step portion 10 for disposing the protective glass 9 and a step portion 11 for disposing the aluminum panel 2. The step portion 10 has an opening for disposing the liquid crystal inside the front housing 1a. As described above, the step portion 11 has a button hole for allowing each operation button to project.

First, before mounting the aluminum panel 2, a double-sided tape 13 is attached to the step portion 10. Next, the protective glass 9 is attached to the step portion 10 together with the trimming frame 14. FIG. 3 is a cross-sectional view of the step portion 10, showing a state in which the tempered glass 9b is attached to the inside, the sapphire glass 9a is attached to the outside, and these are attached to the inside of the step portion 10 by the trimming frame 14. In this case, the sapphire glass 9a is very expensive if the corners are rounded as in the case of the resin material, and therefore the corners are not chamfered. Therefore, the sapphire glass 9a having sharp corners is directly used for the step portion 1.
Since the design is damaged if it is attached to 0, it is necessary to trim the periphery of the glass, and the trimming frame 14 is used. Further, because of the design, it is preferable to raise the sapphire glass 9a above the height of the trimming frame 14, so that the trimming frame 14 has a two-tiered structure, and the tempered glass 9b of a slightly larger size is provided in the first-tiered frame and the second stage. Slightly small sapphire glass 9a in the eye frame
Is fitted. Sapphire glass 9a and tempered glass 9b
Stick together to make one. The trimming frame 14 is used to easily increase the precision of the sticking positions of comrades of different sizes and to shorten the manufacturing time.
First, the sapphire glass 9a was fitted into the frame of the step, and then the tempered glass 9b coated with the optical adhesive was fitted into the frame of the first step and adhered to be integrated. Impact resistance and the like are greatly improved by integrating the sapphire glass 9a and the tempered glass 9b.

When the protective glass 9 can be attached to the step portion 10 with the trimming frame 14, the aluminum panel 2 is then attached.
Install. The attachment was performed by thermocompression bonding. Furthermore, in order to prevent the aluminum panel 2 from floating, pins 15 are press-fitted in the four corners. The role of the four pins 15 is not only to prevent the aluminum panel 2 from floating from the front housing 1a but also to be a design point.
The aluminum panel 2 presses the trimming frame 14 and sandwiches the protective glass 9 to increase the mounting strength of the protective glass 9.

As described above, the present invention is effective in increasing the strength of the housing, preventing damage to the housing, and preventing characters from disappearing on the housing. Further, these are realized without greatly affecting the antenna characteristics and without deteriorating the electric field strength and the call quality.

Although one embodiment of the present invention has been described above, the present invention is not limited to this, and can be appropriately realized based on the description of the claims.

[0021]

As described above, the present invention is effective in increasing the strength of the housing, preventing damage to the housing, and preventing characters from disappearing on the housing. Further, these are realized without greatly affecting the antenna characteristics and without deteriorating the electric field strength and the call quality.

[Brief description of drawings]

FIG. 1 is a front view of a mobile phone showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a main part of a mobile phone showing an embodiment of the present invention.

FIG. 3 is a sectional view of a main part of a mobile phone showing an embodiment of the present invention.

[Explanation of symbols]

 1: Housing 1a: Front housing 2: Aluminum panel 3: Ear speaker part 4: Liquid crystal (LCD) display part 5: Operation part 6: Microphone part 7: Antenna cap 8: Telescopic antenna knob 9: Protective glass 9a: Sapphire glass 9b : Tempered glass 12: Double-sided tape 13: Trimming frame 14: Pin

Claims (6)

[Claims] 1. A part or all of the housing is made of a metal material at a position distant from the fed antenna so as not to substantially affect a telephone call, and a part of the housing other than the metal material is made of a resin material. A mobile communication device characterized by the above. 2. A portable communication device having a housing made of a resin material, the housing being made of a metal at a position apart from the fed antenna so as not to substantially affect a call except at least the periphery of the fed antenna in the housing. A mobile communication device with an exterior panel attached. 3. The housing is provided with an operation button array portion at a position distant from the antenna to be fed so that the housing does not substantially affect the communication by the exterior panel, and the exterior panel projects the arranged operation buttons. The hole is opened, and a groove is formed in the shape of a character, a figure, or a symbol indicating the function name of the operation button or the like near the hole, and the groove is attached to the operation button array portion. Mobile communication device. 4. A portable communication device having a housing made of a resin material, wherein the housing has an antenna housing section and an ear speaker section arranged in an upper part, and a liquid crystal display section and an operation button array section arranged in that order below the housing. A metal exterior panel is attached which covers the display section and the operation button array section and has openings for exposing the liquid crystal and projecting the respective operation buttons. The liquid crystal display section and the operation button array section are located at the outer panel. The mobile communication device is characterized in that the mobile communication device is separated from the antenna storage portion so as not to substantially affect the call. 5. The portable communication device according to claim 4, wherein sapphire glass for protecting the liquid crystal is arranged on the liquid crystal display portion of the housing, and the sapphire glass is sandwiched between the housings by the exterior panel. 6. A portable communication device in which sapphire glass is attached to a window of a housing in which a liquid crystal is arranged.