JPH1188975A - Support structure for speaker in portable electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To support the speaker more simply by fitting the speaker to a recessed part formed to a case of the device and providing a torus rib to a support member placed above the recessed part and pressing the torus rib into contact with the speaker. SOLUTION: The speaker 10 is assembled to a handy transceiver by fitting the speaker 10 to a recessed part of a front case 1 at first tentatively and placing a key top member 11 thereon. Then a printed circuit board 3 is placed on the key top member 11 and the printed circuit board 3 is fixed to a proper part of the case 1 by screws or the like. In this case, a torus rib 12b of a support 12 of the key top member 11 is pressed into contact with the speaker 10 to press the speaker 10 onto the case 1 for support. The key top member 11 acts like a packing and the torus rib 12b of the support 12 acts like a water- proof packing in addition to support the speaker 10 by adopting the water-proof speaker for the speaker 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a speaker holding structure in a portable electronic device.

[0002]

2. Description of the Related Art A speaker holding structure in a conventional portable electronic device (for example, a handy transceiver or the like) includes a speaker 10 fitted in a recess 1a formed in a housing 1 as shown in FIG. 10 by the fixing member 20 attached to the printed circuit board 3 from the back side,
As shown in FIG. 6, the speaker 1 fitted in the recess 1a
No. 0 was bonded to the side wall over the entire circumference. 5 and 6, both of the holding structures of FIGS. 5 and 6 are provided with some temporary fixing strong fitting ribs on a part of the side wall forming the concave portion 1a of the housing 1, as shown in FIG.
When the speaker 10 was fitted into the recess 1a, it was necessary to temporarily fix it.

[0003]

However, the above-described conventional speaker holding structure requires separate parts dedicated to holding the speaker, resulting in an increase in cost and an increase in the number of assembly steps due to the necessity of a bonding operation. Was. Further, in the holding structure by bond bonding, there is a problem that when the speaker is to be replaced, the entire housing is replaced.

It is an object of the present invention to solve the above-mentioned conventional problems and to provide a simpler structure for holding a speaker in a portable electronic device.

[0005]

According to a first aspect of the present invention, there is provided a speaker holding structure in a portable electronic device, wherein the speaker is fitted into a recess formed in a housing of the portable electronic device. A speaker holding structure that is held by a holding member disposed above the concave portion, wherein the holding member includes an annular rib, and the annular rib is held in contact with the speaker.

[0006] Further, a speaker holding structure in a portable electronic device according to the present invention is as follows.
The holding structure according to claim 1, wherein the holding member is integrally formed with a key top of the key operation unit.

According to a third aspect of the present invention, a speaker holding structure in a portable electronic device according to the present invention is provided.
In the holding structure according to claim 1 or 2, the speaker is of a waterproof type, and the holding member serves as both holding of the speaker and waterproof packing.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows one embodiment of a speaker holding structure in a portable electronic device according to the present invention, and shows a case where the present invention is applied to a handy transceiver. As shown in FIG. 1 (A), the handy transceiver comprises a printed circuit board 3 on which various electric components for performing various functions are mounted, which is formed of a front case 1 and a back case 2 and is made of plastic or the like. It is built in. Front case 1
, The display panel 4, the operation keys 5, the ten keys 6,
A sound output hole 7 and the like are provided. On the printed circuit board 3, for example, a display device (for example, a liquid crystal display device) 8, a key switch 9, and the like are mounted.

As shown in FIG. 1B, on the back side of the front case 1, a speaker 10 fitted in a speaker holder concave portion 1a integrally formed with the case 1 and a key top member 11 are provided. Installed. The key top member 11 is made of rubber, and as shown in FIGS. 1C and 1D, the key top 13 and the speaker holding portion 12 are integrally formed. The speaker holding portion 12 includes the concave portion 12 a and the annular rib 1.
2b.

At the time of assembly, as shown in FIG. 2, first, the speaker 10 is fitted into the recess 1a of the housing 1 and temporarily fixed, and the key top member 11 is placed thereon. Next, the printed circuit board 3 is placed on the key top member 11, and the printed circuit board 3 is fixed to a proper position of the housing 1 with screws 14 or the like. At this time, the annular rib 12b of the holding portion 12 of the key top member 11 abuts on the speaker 10, and presses and holds the speaker 10 against the housing 1. Here, the key top member 11 plays a role of packing, and if a waterproof type speaker is used, the annular rib 12b of the holding portion 12 serves as a waterproof packing in addition to holding the speaker 10.

In the above-described speaker holding structure, the bond bonding of the speaker becomes unnecessary. (No man-hours are required.) Further, by merely attaching the annular rib 12b to the holding portion 12 integrally formed with the key top member 11, it is possible to have two functions of waterproofing and speaker holding.

[0012]

The shape of the annular rib 12b of the holding portion 12 integrally formed with the key top member 11 may be the shape shown in FIGS.

[0013]

According to the present invention, a speaker holding structure which is simpler than the conventional one can be obtained.

[Brief description of the drawings]

FIG. 1 is an embodiment of a speaker holding structure in a portable electronic device according to the present invention, showing a case where the present invention is applied to a handy transceiver, (A) is an exploded perspective view, and (B) is a back surface of a front housing. FIG. 4 is a perspective view, FIG. 4C is a perspective view of a key top member, and FIG. 4D is a cross-sectional view taken along line AA in FIG.

FIG. 2 is a view for explaining the time of assembling the structure of FIG. 1;
(A) shows a state before assembly, and (B) shows a state after assembly.

FIG. 3 is a partial cross-sectional view showing another example of the shape of the annular rib of the holding unit.

FIG. 4 is a partial sectional view showing still another example of the shape of the annular rib of the holding unit.

FIG. 5 is a sectional view showing an example of a conventional speaker holding structure.

FIG. 6 is a cross-sectional view showing another example of a conventional speaker holding structure.

FIG. 7 is a perspective view illustrating temporary fixing of the speakers in FIGS. 5 and 6.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front case 2 Back case 3 Printed circuit board 4 Display panel 5 Operation key 6 Numeric keypad 7 Sound emission hole 8 Display device 9 Key switch 10 Speaker 11 Key top member 12 Holding part 13 Key top 14 Screw

Claims (3)

[Claims] 1. A speaker holding structure in which a speaker is fitted into a recess formed in a housing of a portable electronic device and held by a holding member disposed above the recess, wherein the holding member has an annular rib. A holding structure for the speaker in a portable electronic device, wherein the ring-shaped rib is held in contact with the speaker. 2. A speaker holding structure in a portable electronic device according to claim 1, wherein the holding member is formed integrally with a key top of the key operation section. 3. The speaker holding structure in a portable electronic device according to claim 1, wherein the speaker is of a waterproof type, and the holding member serves as both the holding of the speaker and the waterproof packing.