JPH11252222A - Mounting structure of receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain productivity and to unnecessitate assembly screws by arranging a speaker and a sub substrate on an upper case side, arranging a main substrate on a lower case side and also making the sub substrate push the speaker. SOLUTION: A sub substrate 9 on an upper case side has a speaker yoke 6d insertion hole, a rubber bush 10 insertion hole, notch parts on both sides of the center and projecting parts on both sides of a front end. The upper case 5 is provided with a boss 5d where the bush 10 is pressed into through a substrate hole, the notch part of the substrate 9 and a slide fixed groove to the projecting parts. A cushion material 11 is inserted into the yoke 6d so as to intervene between the substrate 9 and a speaker 6, a head part 10a of the bush 10 lies between a power supply transformer 2 on a lower main substrate and the substrate 9 and a bottom 12a of a button 12 puts the substrate 9 between.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a receiving apparatus, and more particularly, to a receiving apparatus in which a speaker is mounted and arranged in an office or each home to receive disaster prevention information and instructions from a master station. The present invention relates to a small receiving device for reporting.

[0002]

2. Description of the Related Art FIGS. 8 to 10 show a conventional mounting structure of a small receiving apparatus of this kind. As shown in FIGS. 8 and 9, the lower case 1 includes a main board 3 on which the power transformer 2 is mounted.
, A plurality of claws 1b and 1c for fixing the upper case 5, and a hole 1e for fixing the guide boss 4a of the battery storage case 4. There are locking claws 5a on both sides of the speaker 6 of the upper case 1, and the speaker 6 is fixed by the elasticity of the holding metal 7 via the holding metal fitting 7. The power transformer 2 on the main board 3 is sandwiched from above and below via a rubber cap 8 press-fitted into the boss 5d of the upper case 5 and a rubber cap 8 press-fitted into the boss 1d of the lower case 1. . Conventionally, the receiving device for receiving and notifying the disaster prevention information has no recording function, and has a structure in which only one main substrate 3 is mounted as described above. FIG. 10 shows an example of the dimensions of the conventional receiving apparatus, which is 185 mm wide × 118 mm deep ×
Those having a size of about 45 mm in height have been put to practical use.

[0003]

In recent years, the importance of disaster prevention has significantly increased, and it has become necessary for the above-mentioned receiving apparatus to record a report or the like from a master station.
However, it is difficult to mount the recording circuit components on the main board of the conventional receiver, so it has been necessary to increase the number of mounting boards to two. In such a structure, not only the size of the apparatus is remarkably increased, but also the productivity of the assembling work and the like is significantly deteriorated. The present invention has been made in view of such a situation, and a first object of the present invention is to maintain the same productivity as a conventional apparatus in a receiving apparatus in which two boards are mounted, and to use a screw for assembly. An object of the present invention is to provide a receiving device having a structure not to be used. A second object of the present invention is to provide a receiving device having a structure for reducing the fluctuation caused by minute vibration of a built-in speaker and a power transformer. Further, a third object of the present invention is to make the apparatus main body thin.

[0004]

In order to achieve the first to third objects, the present invention relates to a receiving apparatus having a housing composed of an upper case and a lower case. And the main board is arranged on the lower case side, and the sub-board is configured to hold down the speaker. In addition, a groove is provided on the upper case side for slidingly inserting and fixing the sub-board, and the board is prevented from coming off with a rubber bush, and the sub-board is connected to a speaker or power transformer via an elastic body (rubber bush, cushion material). It is made to hold down.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will now be described with reference to FIGS.
This will be described with reference to FIG. As shown in FIGS. 1 to 3, an upper case 5 has a speaker 6 and a sub-board 9, and a lower case 1 has a main board 3 on which a power transformer 2 is mounted and a battery housing 4. The sub-substrate 9 on the upper case side has a speaker yoke 6d insertion hole 9a, a rubber bush 10 insertion hole, a notch 9c on both sides in the center, and a projection 9d on both ends. The upper case 5 is provided with a boss 5d into which the rubber bush 10 is press-fitted through the board hole 9b, a notch 9c of the sub-board 9, and a slide fixing groove for the protruding portion 9d. Further, the cushion material 1 is attached to the speaker yoke 6d.
1 is inserted between the sub-board 9 and the speaker 6 so that the head 10a of the rubber bush 10 is interposed between the power transformer 2 on the lower main board and the sub-board 9 and the button 12 Is configured so that the sub-substrate 9 is sandwiched between the bottoms 12a.

FIG. 3 illustrates the dimensions of the sub-substrate 9.
As shown in FIG. 7, the dimensions are 100 mm × 110 mm, and the dimensions of the speaker yoke hole 9a are practically about 25 × 29φ. On this sub-substrate 9, for example, a voice recording IC, D
A RAM, an operational amplifier, a tact switch, and the like are mounted. The dimensions of the main substrate 3 are, for example, 100 mm × 150 mm as shown in FIG. On the main board 3, for example, a power transformer, an AC inlet, a VCO, various filters, a power switch, a microcomputer, and the like are mounted. FIG. 5 shows an example of the dimensions of the speaker 6. FIG. 7 shows the mounting structure of the present embodiment described above.

FIG. 6 shows an example of the dimensions of the receiving apparatus according to the present embodiment. The receiving apparatus has a size of about 185 mm in width × 118 mm in depth × 50 mm in height, on which two substrates are mounted, and provided with recording means. Can be realized.

[0008]

According to the present invention, in a small receiving device having a recording function and having two substrates mounted thereon, no screws are required for assembling, and a speaker retainer is not required. At the same time, since the speaker can be fixed, the number of assembling steps can be significantly reduced, and the productivity can be significantly improved. In addition, the rubber bush, cushion material and SW button in contact with the front and back of
The vibration phenomenon of each part of the main body due to the micro vibration of the transformer can be absorbed and reduced. Further, it is possible to reduce the impact applied to the transformer, which is a heavy object, due to dropping of the main body. In addition, since the speaker yoke is projected from the hole of the sub-board, the thickness of the apparatus main body can be reduced.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of one embodiment of the present invention.

FIG. 2 is a cross-sectional view of one embodiment of the present invention.

FIG. 3 is a perspective view of a sub-board according to one embodiment of the present invention.

FIG. 4 is a perspective view of a main board according to one embodiment of the present invention.

FIG. 5 is a sectional view of a speaker according to an embodiment of the present invention.

FIG. 6 is a perspective view showing the overall dimensions of a receiving apparatus according to one embodiment of the present invention.

FIG. 7 is a diagram showing details of a mounting structure according to an embodiment of the present invention.

FIG. 8 is a longitudinal sectional view of a conventional example.

FIG. 9 is a cross-sectional view of a conventional example.

FIG. 10 is a perspective view showing the overall dimensions of a conventional example.

[Explanation of symbols]

1: Lower case, 2: Power transformer, 3: Main board, 4: Battery storage section, 5: Upper case, 6: Speaker, 7: Holder, 8: Rubber cap, 9: Sub-board, 1
0: rubber bush, 11: cushion,
12: button, 1a, 1b, 1c, 5c: nail,
1d, 4a, 5d: boss, 1e, 9a, 9b: hole,
5a, 5b: groove, 6d: yoke,
9c: Notch, 9d: Projection.

Claims (3)

[Claims] In a receiving apparatus having a housing composed of an upper case and a lower case, a speaker and a sub board are arranged on an upper case side, a main board is arranged on a lower case side, and the sub board is A mounting structure of a receiving device, wherein the receiving device is configured to hold down the speaker. 2. The mounting structure of a receiving device according to claim 1, wherein said upper case is provided with a groove for slidingly inserting and fixing said sub-board. 3. A main board having a speaker and a sub board on an upper case side and a power transformer mounted on a lower case side.
A receiving device having a battery storage portion, wherein a sub-board on the upper case side has a speaker yoke insertion hole, a rubber bush insertion hole, a cutout on both sides of the center, and protrusions on both sides of the tip, and the upper case has A boss into which the rubber bush is press-fitted through the board hole, a cutout in the sub-board, and a slide fixing groove for a protruding portion are provided. The head of the rubber bush having a T-shaped cross section and having a minute projection on the surface of the circular thin head is interposed between the power transformer and the sub-board on the lower main board. There is a receiving device.