JP2001069587A - Mounting structure for loudspeaker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of a loudspeaker, where a fixing force of the loudspeaker is strengthened and components can be mounted, even between the upper part of a printed circuit board and the loudspeaker by mounting the loudspeaker to a position close to the outward face of a panel. SOLUTION: In this mounting structure, a loudspeaker mount boss 209 is provided around the mounting position of a loudspeaker 200. A flange 215 of the loudspeaker is retained by a 2nd face 302 of a mount metallic fixture 211, a 1st face 301 of the mount metallic fixture 211 which does not retain the flange 215 is screw-fastened to the insertion port of a boss hole 219 of the loudspeaker mount boss with a screw head 213 to be fixed to the panel 201.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loudspeaker mounting structure, and more particularly, to a loudspeaker mounting structure that emits a ringing tone and outputs the other party's voice during a hands-free conversation.

[0002]

2. Description of the Related Art A conventional speaker mounting structure will be described with reference to FIGS. FIG. 5 is a perspective view of the back surface of panel 400, which shows a state before a loudspeaker is installed in loudspeaker installation recess 401. As shown in FIG. 5, on the back surface of the panel 400, a loudspeaker installation concave portion 401, a transmitter / receiver receiver mounting convex portions 404 and 403, and an LCD window 40 are provided.
5. A button hole 407 is provided. A speaker hole 409 is provided in the loudspeaker installation recess 401 so that a sound emitted from a loudspeaker (not shown) can be heard outside. A loudspeaker mounting boss 411 is provided around the loudspeaker installation concave portion 401, and is used to fix the loudspeaker.

[0003] For example, when a handset of a cordless telephone or a handset connected to a base unit by a curl cord is in an on-hook state, a receiver unit (not shown) of the handset is placed on the receiver mounting projection 403. ) Is installed, and the transmitter mounting projection 4 is set.
In the on-hook state, a transmission unit (not shown)
Is installed. The LCD window 405 is provided so that an LCD display unit (not shown) mounted on a circuit board provided inside the base unit of the cordless telephone can be seen from the outside. In addition, the button hole 40
Numeral 7 is provided to enable operation by taking out a numeric keypad, an answering key, and other function keys from the upper surface of the panel. FIG. 6 is a cross-sectional view of a case where a conventional loudspeaker 500 is attached to the loudspeaker installation recess 401 in FIG. 5 described above. As shown in FIG. 6, the periphery of the loudspeaker 500 of the telephone adopting the mounting structure of the conventional loudspeaker 500 has a panel 501 that forms the exterior of the telephone body above the loudspeaker 500, and a lower part of the loudspeaker 500. Has a circuit board 503. The panel 501 has a speaker hole 505 and a cushion 507.
And a loudspeaker mounting boss 509, and the speaker hole 505 extends from the surface of the panel 501 to the panel 5.
01 penetrates the back surface. The cushion 507 prevents chattering of the loudspeaker 500 in a used (driving) state, and also sets the screw 513 to the boss 5 for mounting the loudspeaker.
By screwing into 09, the force holding down the loudspeaker 500 by the washer 511 is also absorbed.

[0004] A screw 513 having a washer 511 is fitted into the loudspeaker mounting boss 509, and the washer 5 is mounted.
The loudspeaker 500 is fixed to the panel 501 by eleven flanges. The loudspeaker 500 has a flange 515
And the speaker unit 517, and the flange unit 5
15 was fixed to the panel 501 by pressing it with a washer 511 of a screw 513. It is needless to say that the washer 511 may have a structure integrated with the screw 513. Here, in order to increase the fixing force of the loudspeaker 500,
It is necessary to secure the length of the screw 513 and the boss hole 519. Flange 515 washer 511 with screw 513
In the conventional mounting method in which the speaker is pressed down, the loudspeaker is installed at a position away from the external surface of the panel 501. To this end, as shown in FIGS. 5 and 6, the loudspeaker mounting ribs 52 are provided inside the loudspeaker mounting boss.
0 was also provided from the surface of the panel 501 to a position somewhat higher.

[0005]

However, when the boss hole is lengthened, the loudspeaker is mounted at a position distant from the external appearance of the panel, and the loudspeaker is mounted between the circuit board provided inside the telephone body and the loudspeaker. Could not place the parts. SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a circuit provided inside a telephone body by maintaining the fixing force of a loudspeaker strong as before and mounting the loudspeaker at a position close to the external surface of a panel. An object of the present invention is to provide a mounting structure of a loudspeaker in which components can be arranged between a board and a loudspeaker.

[0006]

In order to achieve the above object, according to the present invention, a speaker mounting boss is provided around a speaker mounting position, and the speaker mounting boss is formed in an L-shape at a fitting entrance of a boss hole. The speaker is fixed to the panel by fixing the speaker to the panel by screwing the first surface of the mounted mounting bracket and pressing the flange of the speaker at the tip of the second surface of the mounting bracket that is not screwed. It is configured as a speaker mounting structure. Further, the height from the bottom of the speaker to the tip of the speaker is lower than the height of the speaker mounting boss. Further, the tip of the second surface presses the flange portion of the speaker at a point contact.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a speaker mounting structure according to the present invention will be described in detail with reference to FIGS. FIG. 1 is an exploded perspective view of a telephone employing a speaker mounting structure according to the present invention, and FIG. 2 is a perspective view of the back surface of the panel. FIG. 3 is a cross-sectional view around a loudspeaker according to the present invention, and FIG. 4 is a perspective view of a mounting bracket for mounting the loudspeaker.

In the telephone shown in FIG. 1, a key top 107 is housed between a circuit board 101 and a panel 103 so as to be overlaid on a keyboard 105. The panel 103 includes a receiver mounting recess 109 and an LCD window 1.
11, a button hole 113 and a speaker hole 115 are provided. Normally, the receiver is placed in the receiver mounting recess 109 when on-hook. A front glass 117 is attached to the LCD window 111.
Through the display, various information displayed on the LCD display unit 119 can be viewed. The key 121 on the key top is protruded from the button hole 113 to enable key operation.

The sound output from the loudspeaker 123 can be heard outside through the speaker hole 115. When fixing the loudspeaker 123 to a predetermined position on the panel 103 and attaching it, the loudspeaker 1
In order to prevent chattering of 23 and absorb the pressing force, a cushion 125 is interposed therebetween. When the loudspeaker 123 is fixed to the panel 103, the screw 127 is attached to the mounting bracket 12.
9 and press down the flange portion 131 of the loudspeaker 123 on the surface forming the mounting bracket 129.

FIG. 2 is a perspective view of the back surface of the panel 103 shown in FIG. As shown in FIG. 2, on the rear surface of the panel 103, there are provided projections 603 and 602 for placing a transmitter / receiver, an LCD window 604, and a button hole 605. Handset mounting projection 6
02, handset (not shown) when in on-hook state
Of the speaker unit, and the transmitter mounting convex portion 603 includes:
At the time of the on-hook state, the microphone unit of the receiver (not shown) is installed. The LCD window 604 is provided so that an LCD display unit (not shown) provided on the circuit board can be viewed from outside. In addition, button holes 605
The keypad is provided so that ten keys, answering keys, and other function keys can be operated by exposing the keys from the upper surface of the panel. The receiver mounting protrusion 602 and the transmitter mounting protrusion 6
03 and the speaker 200 is installed.
A loudspeaker mounting boss 2 is provided around the loudspeaker 200.
09 is provided. The loudspeaker 200 is fixed by a mounting bracket 211, and the mounting bracket 211 is screwed to a loudspeaker mounting boss 209. At this time, since the loudspeaker 200 is fixed at point contacts by the mounting bracket 211, the loudspeaker 200 is configured to be able to absorb rattling of the loudspeaker 200 due to vibration of the telephone body.

FIG. 3 is a sectional view of the vicinity of a loudspeaker 200 according to the present invention. As shown in FIG. 3, the periphery of the loudspeaker 200 of the telephone employing the mounting structure of the loudspeaker 200 according to the present invention has a panel 201 forming the exterior of the telephone main body above the loudspeaker 200. A part 221 is provided at the lower part, and a part 22 is further provided.
1 has a circuit board 203 below. Panel 201
Has a speaker hole 205 and a loudspeaker mounting boss 20.
9 are provided, and the speaker hole 205 is provided in the panel 20.
It penetrates from one surface to the back surface of panel 201. A screw 213 is fitted into the loudspeaker mounting boss 209 to fix the loudspeaker 200 to the panel 201. When the loudspeaker 200 is attached to the panel 201, the cushion 20 is placed between the loudspeaker 200 and the panel 201.
7 in between. This cushion 207 is used for the loudspeaker 20.
This is for preventing chattering of zero and absorbing the force pressing down the loudspeaker 200 by the mounting bracket 211. The loudspeaker 200 includes a flange 215 and a speaker 217. The loudspeaker 200 is fixed to the panel 201 by pressing the flange 215 on a surface forming a mounting bracket 211 for mounting the loudspeaker 200.

Here, a mounting bracket 211 for mounting the loudspeaker 200 is formed in an L-shape and has a first surface 301.
And a second surface 302. Flange part 215
The first surface 301 of the mounting bracket 211 not holding down
Is fixed to the panel 201 with a screw head 213 at a fitting entrance of the boss hole 219. The second surface 302 is arranged in parallel with the loudspeaker mounting boss 209. Then, the flange portion 215 of the speaker 200 is pressed down by a point contact at the end of a surface parallel to the speaker mounting boss 209.

FIG. 4 is a perspective view of the mounting member 211 as viewed from the circuit board 203 side. The first surface 301 having the screw hole 212 corresponds to the surface of the screw head 213 which is screwed to the fitting hole of the boss hole 219, and the tip of the second surface 302 having no screw hole 212 is This corresponds to a surface on which the flange portion 215 of the loudspeaker 200 is pressed. Since the flange portion 215 of the loudspeaker 200 is pressed by the tip of the second surface 302 of the mounting bracket 211, the boss hole 219 can be longer than the conventional boss hole. That is, the second surface 302 of the mounting bracket 211 and the boss hole 2
By increasing the length of 19, the loudspeaker can be more firmly attached.

Further, since the height from the flange 215 (bottom of the loudspeaker) to the speaker 217 (the end of the loudspeaker) of the loudspeaker 200 shown in FIG. A space can be secured between the speaker 200 and the circuit board 203, and the component 221 can be arranged in the secured space.

[0015]

As described above, according to the present invention, it is possible to increase the fixing force of the loudspeaker, to prevent rattling due to the vibration of the telephone body, and to mount the loudspeaker at a position close to the external surface of the panel. Accordingly, it is possible to provide a mounting structure of a loudspeaker in which components can be arranged between the circuit board and the loudspeaker.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a telephone employing a speaker mounting structure according to the present invention.

FIG. 2 is a perspective view of the back surface of a panel employing the speaker mounting structure of the present invention.

FIG. 3 is a cross-sectional view around a loudspeaker according to the present invention.

FIG. 4 is a perspective view of a mounting bracket for mounting a loudspeaker according to the present invention.

FIG. 5 is a perspective view of the back surface of a panel employing a conventional speaker mounting structure.

FIG. 6 is a cross-sectional view around a loudspeaker employing a conventional loudspeaker mounting structure.

[Explanation of symbols]

 103, 201: Panel 123, 200: Loudspeaker 129, 211: Mounting bracket 131, 215: Flange part of loudspeaker 209: Boss for mounting loudspeaker 217: Tip of loudspeaker 219: Boss hole

Claims (3)

[Claims] 1. A speaker mounting structure in which a speaker is mounted inside a panel forming an exterior of a telephone body, wherein a speaker mounting boss is provided around a mounting position of the speaker, and a boss hole of the speaker mounting boss is fitted. Then, the first surface of the L-shaped mounting bracket is screwed, and the front end of the second surface of the mounting bracket, which is not screwed, presses the flange portion of the speaker to mount the speaker. A speaker mounting structure fixed to the panel. 2. The speaker mounting structure according to claim 1, wherein a height from a bottom portion of the speaker to a tip portion of the speaker is lower than a height of the speaker mounting boss. Mounting structure. 3. The speaker mounting structure according to claim 1, wherein the tip of the second surface is pressed against a flange of the speaker at a point contact. Construction.