JPH0716456Y2 - Sound card - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound generating card used for celebration or greeting.

[0002]

2. Description of the Related Art Generally, as an example of a conventional sound generation card, a sound generation circuit with a built-in memory such as a melody IC for generating a melody sound and an ultra-thin speaker connected to the sound generation circuit. And a battery power supply that supplies power to the sound generation circuit and the speaker, and a switch that interrupts power supply from the battery power supply.The sound generation circuit, the battery power supply, and the switch are formed on a card mount. The speaker is directly attached to the card mount while being mounted in the recess.

As another conventional example, there is a structure in which the speaker of the sound generating card is covered with a plastic or metal cover and the cover is attached to the card mount.

In any of these sound generating cards, a switch is turned on to supply electric power from the battery to the sound generating circuit, so that a sound signal is supplied to the speaker for a predetermined time to convert the sound into electric sound. It is designed to listen to sounds such as melody sounds.

[0005]

In the conventional sound generating card, the speaker is directly adhered to the card mount, and in addition to the purpose of using the card itself, the melody is a melody that doubles the purpose. There is a problem that the sound is small and hard to hear, and it is not possible to obtain a soft timbre.

Further, in the structure in which the speaker is covered with the cover and the cover is attached to the card mount, the audible sound becomes a hard sound like a metal sound, and when listening to the melody sound, a rich and soft sound is heard. There was a problem that I could not hear.

The present invention has been made in order to solve the above-mentioned problems, and an object thereof is to provide a sound generation card capable of listening to a loud sound and obtaining a soft tone color.

[0008]

A sound generating card according to the present invention has a structure in which a sound generating circuit having a built-in memory for outputting a sound signal for a predetermined time, a speaker connected to the sound generating circuit, and the sound generating circuit. A battery power source for supplying power to the speaker and a switch means for connecting and disconnecting the power supply from the battery power source are attached to the card mount, a window hole is formed in the card mount, and the resonance plate is covered by covering the window hole. The speaker is bonded to the card mount and the speaker is bonded to the resonance plate.

[0009]

In the sound generating card according to the present invention, the timbre output from the speaker is softened and expanded by the resonance plate and is heard by bonding the speaker to the card mount via the resonance plate.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes a sound generation circuit with a built-in memory for outputting a sound signal such as a melody sound for a predetermined time. The sound generation circuit 1 is composed of a melody IC such as a single-tone melody IC or a chord melody IC. Reference numeral 2 is an ultra-thin speaker connected to the sound generating circuit 1. This speaker 2 is a piezoelectric speaker in which a ceramic electrode 2a is bonded to a metal electrode 2b such as aluminum or brass. Three
Is a thin battery power source for supplying power to the sound generation circuit 1 and the speaker 2, 4 is a switch means for connecting and disconnecting the power from the battery power source 3, and the switch means 4 is a so-called push button switch. The switch means 4 is not limited to the push button switch shown in this embodiment, but may be a so-called membrane type switch or an optical switch. In addition, 10 is a resistance.

Reference numeral 5 denotes a card mount such as a greeting card / congratulatory card, 6 denotes the sound generating circuit 1, a battery power source 3
And a printed board provided with a pattern to which the switch means 4 is connected. The printed board 6 is fitted into the rectangular window hole 5a formed in the card mount 5 and is bonded to the card mount 5 via the adhesive sheet 7. Has been done.

Reference numeral 8 denotes a resonance plate made of styrene foam or the like, and the resonance plate 8 is adhered at its periphery to a rectangular window hole 5b formed in the card mount 5. Also, the resonance plate 8
A circular hole 8a is formed in the circular hole 8a, and the speaker 2 is bonded to the circular hole 8a with an adhesive sheet 9.

Next, the operation will be described. When the switch means 4 is operated to supply electric power to the sound generating circuit 1 and the speaker 2, a sound signal such as a melody sound output from the sound generating circuit 1 for a predetermined time is output to the outside via the speaker 2.

The sound output from the speaker 2 is softened and expanded by the resonance plate 8, and a richer sound suitable for listening to a melody can be heard.

Moreover, if the melody IC of the sound generating circuit 1 is a chord melody IC, a much richer tone color can be heard.

In the above-mentioned embodiment, the speaker 2 is adhered to the resonance plate 8 by the adhesive sheet 9, but the speaker 2 is directly attached to the resonance plate 8 by applying an adhesive on the outer periphery of the speaker 2.
You may adhere so that the circular hole 8a of may be covered.

[0017]

As described above in detail, according to the sound generating card of the present invention, a sound generating circuit with a built-in memory for outputting an audio signal for a predetermined time, a speaker connected to the sound generating circuit, and the above-mentioned sound. A battery power supply for supplying power to the generation circuit and the speaker and a switch means for connecting and disconnecting the power supply from the battery power supply are attached to the card mount, and the resonance plate is covered with the window hole formed in the card mount to mount the resonance plate on the card mount. Since the speaker is bonded to the resonance plate and the speaker is bonded to the resonance plate, there is an effect that a loud sound can be heard and a soft timbre can be obtained.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a sound generating card according to the present invention.

FIG. 2 is a sectional view taken along line II-II of the above.

FIG. 3 is a sectional view taken along line III-III of the above.

[Explanation of symbols]

 1 sound generating circuit 2 switch means 3 battery power supply 4 speaker 5 card mount 5b window hole 8 resonance plate

Claims (1)

[Scope of utility model registration request] 1. A sound generating circuit with a built-in memory for outputting an audio signal for a predetermined time, a speaker connected to the sound generating circuit, a battery power source for supplying power to the sound generating circuit and the speaker, and a battery power source from the battery power source. In the sound generating card in which the switch means for connecting and disconnecting the power supply to the card mount are attached to the card mount, a window hole is formed in the card mount, and the resonance plate is adhered to the card mount while covering the window hole and the resonance A sound generation card characterized in that the speaker is adhered to a plate.