JPH11275194A - Portable telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable telephone set capable of being thinned even make in a straight shape by arranging a speaker, a liquid crystal display device and a battery on one surface side of a circuit board. SOLUTION: This portable telephone set 10 is composed of a main body case 11 provided with an almost rectangular parallelepiped shape and the inside of the main body case 11 is almost bisected by the circuit board 17. A speaker part 13 for reception, an information display part 14 and a dial part 15 where plural operation keys are arrayed are arranged on the front surface 11a of the main body case 11 and a speaker device 18, the liquid crystal display device 19 and the battery 20 are all provided on one surface side of the circuit board 17 inside the main body case 11. Also, an opening 11c is provided on the front surface 11a of the main body case 11 and the opening 11c is opened and closed by the dial part 15 turnably supported to the main body case 11 by a hinge 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone having a display device, a battery, and the like mounted inside a main body case in addition to a circuit board.

[0002]

2. Description of the Related Art With the spread of mobile phones, the size and thickness of mobile phones have been reduced. The appearance of such a conventional mobile phone will be described with reference to FIG.
Has a substantially rectangular parallelepiped thin main body case 2 and an antenna 3 erected from the top of the main body case 2. A plurality of operation keys 6 a including a speaker unit 4, a liquid crystal display unit 5 and a numeric keypad are provided on a front surface 2 a of the main body case 2. Are provided. On the other hand, the main body case 2 includes a circuit board 7 that divides the inside of the main body case into approximately two parts, and the speaker S and the liquid crystal display device L are provided on one side of the circuit board 7 (the front side 2a of the main body case 2), and the other side ( The battery B is provided on the back surface 2b). Note that the battery B is inserted / removed / replaced via an opening 2c provided on the back surface 2b of the main body case 2.

[0003]

However, in the above-mentioned conventional portable telephone 1, the speaker S and the liquid crystal display device L are arranged on the front surface 2a side of the circuit board 7 in the upper part of the main body case 2. The space on the front surface 2a side with respect to the circuit board 7 must be larger than that on the back surface 2b side,
On the other hand, in the lower part of the main body case 2, the battery B
, The space on the back surface 2b side with respect to the circuit board 7 must be larger than that on the front surface 2a side. For this reason, the conventional mobile phone 1 cannot have an outer shape that is linear (straight shape) in a side view, and if the shape is to be made straight according to design requirements or the like, the thickness T0 increases. As a result, there is a structural problem that the thickness cannot be reduced.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above problem by devising the arrangement of components inside the main body. That is, in the invention according to the first aspect, the speaker, the display device, and the battery are arranged on one surface side of the circuit board inside the main body case which is roughly divided into two by the circuit board. According to this structure, it is not necessary to increase the space on the other surface side of the circuit board in the main body case, so that a thin and straight mobile phone can be provided.

In the above construction, the invention according to claim 2 is provided with an opening through which the battery can be inserted and removed from the surface of the main body case facing the battery, and the main body case holds an opening / closing plate for opening and closing the opening. Thus, it is possible to provide a mobile phone which is excellent in design and whose battery can be easily replaced. The opening may be provided not only on the so-called front surface (one surface side of the circuit board) of the main body case, but also on the surface of the main body case, such as the side surface or the bottom surface, facing the battery.

Further, in the portable telephone according to the third aspect, the opening is provided in the main body case located on one surface side of the circuit board, and the opening and closing plate is electrically connected to the circuit board by a flat wire. Is provided with a dial surface having the following operation keys. That is, the telephone dial part of the conventional mobile phone constitutes a part or the whole of the open / close plate. Accordingly, a large area for battery insertion / removal can be ensured, so that a mobile phone that facilitates battery replacement can be provided.

According to a fourth aspect of the present invention, a speaker device, a display device, and a battery are disposed between a circuit board and one surface of a main body case (a surface on which a speaker portion, a dial portion, etc. are disposed), and a battery replacement battery is provided. An opening is provided on the one surface of the main body case, facing the battery, and the dial is rotatably supported by the main body case so as to open and close the opening. It is possible to provide a mobile phone having a straight shape and easily replacing a battery.

[0008]

1A, 1B and 1C show a front view, a side view and a longitudinal sectional view, respectively, of a mobile phone according to an embodiment of the present invention. The mobile phone 10 has a substantially rectangular parallelepiped and thin main body case 11.
And an antenna 12 erected from the upper part of the main body case 11. On the front surface 11a of the main body case 11, a speaker unit (having a plurality of small holes for receiving) is provided in order from the top.
13, a liquid crystal display section 14, a dial section 15 in which operation keys 15a including ten keys for dial and mode setting keys are arranged, a microphone section 16 and the like are arranged.

FIG. 1C, which is a cross section taken along the line AA of FIG.
As shown in the figure, the inside of the main body case 11 is formed such that a circuit board 17 having a flat plate shape and mounted with various control parts substantially divides the inside of the main body case 11 into two parts (a front surface 11a is formed inside the main body case 11). Side space and a space on the back surface 11b side).

The space on one surface side (front surface 11a side) of the circuit board 17, ie, the front surface 11a of the main body case 11 and the circuit board 1
7, a speaker 18 is arranged at a position facing the speaker unit 13 on the front surface 11a (a position corresponding to the back surface of the speaker unit 13), and a liquid crystal display device 19 is arranged at a position facing the liquid crystal display unit 14. Have been. The speaker 18 is an electric unit for outputting a reception sound from the speaker unit 13, and the liquid crystal display device 19 is an electric unit for displaying information such as a telephone number on the liquid crystal display unit 14.

A thin rectangular parallelepiped is provided below the liquid crystal display device 19 in a space on one surface side (the front surface 11a side of the circuit substrate 17) where the speaker 18 and the liquid crystal display device 19 are arranged with respect to the circuit board 17. A battery (lithium ion battery) 20 having a shape is accommodated. Battery 20
A microphone 21 for transmitting voice is provided on the lower surface of the circuit board 17 on the one surface side of the circuit board 17 so as to face the microphone unit 16. In addition, a rectangular opening 11c sized to allow the battery 20 to be inserted into and removed from the main body case 11 is provided on the front surface 11a of the main body case 11 facing the battery 20.

The dial portion 15 is a flat plate having the same rectangular shape as the opening 11c. The upper end of the dial portion 15 has a hinge 22 whose axial direction is the width direction of the main body case 11. (Direction) Supporting (holding) so as to be rotatable on the main body case 11 at a substantially central position.
Have been. Therefore, as shown by an arrow in FIG. 1C, the dial portion 15 rotates by a predetermined angle such that the upper side of the dial portion 15 is the center of rotation and the lower portion is separated from the main body 11. The dial unit 15 includes a plurality of operation keys 15a electrically connected to a connection terminal (not shown) on the dial unit 15 through an internal connection member (not shown) such as a printed wiring. Surface. The connection terminal is a flat wire (a flat wire that is easy to bend) in order to absorb the amount of movement accompanying the rotation of the dial unit 15.
23, the circuit board 17 is connected, and the plurality of operation keys 15a and the circuit board 17 are electrically connected.

In this embodiment constructed as described above, the opening 11c is usually used with the dial portion 15 closed. When the battery 20 is exhausted and needs to be replaced, the dial unit 15 is rotated to open the opening 11c, and the battery 20 is inserted and removed. As described above, the mobile phone of this embodiment has no difference in operability from the conventional mobile phone.

In the present embodiment, the speaker 1
8, the liquid crystal display device 19 and the battery 20 are connected to the circuit board 1
7, these large parts do not exist on the back surface 11 b side of the circuit board 17, and the space on the back surface 11 b side is made up and down (longitudinal direction, vertical direction) of the body case 11. Direction) can be made small (thin thickness) over the whole. Therefore, even when the appearance of the main body case 11 is a straight shape, the thickness T1
(See FIG. 1C) can be made thinner than the conventional thickness T0 (see FIG. 2C), and a mobile phone excellent in design can be provided. In addition, since the dial part 15 which is an essential part of the mobile phone is used as an opening / closing door for the opening 11c for replacing the battery 20, the advantage that the number of parts is small is small.

The present invention is also applicable to the following modifications of the present embodiment. (1) A battery that can be inserted and removed by sliding the battery 20 from the bottom surface 11d of the main body case 11. In this case, an opening and a door are provided on the bottom surface 11d. (2) The battery 20 can be inserted and removed from the side surface 11e of the main body case 11. In this case, an opening and a door are provided on the side surface 11e. (3) The dial portion 15 rotates in the left-right direction to open the opening 11c.
The hinge 22 has an axial direction up and down (vertical direction) so that it can be opened and closed. (4) A battery adopting a battery that can be charged while being mounted on the main body case 11. In this case, the opening 11c is not necessarily required, and a charging terminal portion is provided in the main body case 11 instead.

[Brief description of the drawings]

FIG. 1 is a front view (FIG. 1 (A)), a side view (FIG. 1 (B)), and a vertical (A-) of an embodiment of a mobile phone according to the present invention.
FIG. 1A is a sectional view (FIG. 1C).

FIG. 2 is a front view of a conventional mobile phone (FIG. 2A);
A side view (FIG. 2B) and a vertical (AA) sectional view (FIG. 2)
(C)).

[Explanation of symbols]

10 mobile phone, 11 body case, 11a front,
11b: back surface, 11c: opening, 11d: bottom surface, 11e
... Side panel, 13 (for receiving) speaker unit, 14 ... Liquid crystal (information) display unit, 15 ... Dial unit, 15a ... Operation keys, 1
7 circuit board, 18 speaker, 19 liquid crystal display,
Reference numeral 20: battery, 22: hinge, 23: flat wire

Claims (4)

[Claims] 1. A mobile phone having a substantially rectangular parallelepiped main body case divided into two parts by a circuit board and having a speaker, a display device, and a battery inside the main body case, wherein the speaker, the display device, And a mobile phone in which the battery is disposed on one surface side of the circuit board. 2. The mobile phone according to claim 1, wherein an opening is provided on a surface of the main body case facing the battery so that the battery can be inserted and removed, and the main body case opens and closes the opening. A mobile phone that holds an open / close plate. 3. The mobile phone according to claim 2, wherein the opening is provided in a main body case located on the one surface side of the circuit board, and the opening / closing plate is electrically connected to the circuit board by a flat wire. A mobile phone comprising a dial surface having a plurality of operation keys. 4. The interior of a main body case having a substantially rectangular parallelepiped shape is substantially divided into two parts by a circuit board, and a receiving speaker unit, an information display unit, and a dial unit arranged with a plurality of operation keys are arranged on one surface of the main body case. A speaker device that emits a reception sound from the reception speaker unit, a display device for displaying information on the information display unit, and a battery inside the main body case, and the battery is inserted into and removed from the main body case. In a mobile phone provided with an opening that enables the speaker device, the display device, and the battery are disposed between the circuit board and the one surface of the main body case, and the opening is formed in the main body case. Provided on a surface facing the battery, and the dial portion is rotatably supported by the main body case to open and close the opening. A mobile phone characterized in that: