JPH11254864A - Voice card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a voice card for forming an echo section in a card main body of 1.5 mm thickness or less to improve the sound volume and also preventing an accident of swallowing a battery as a danger generated heretofore. SOLUTION: A voice card is constituted of a car base 2 formed at least of a voice IC control circuit, a speaker 5, a switch 12 and a thin battery 10, on which the thickness of respective components is 1.5 mm or less and holes whereon respective parts are disposed are formed, an upper face cover for covering the card base 2 and a lower face cover 3 for fixing the speaker and amplifying its vibration. Spaces are formed between the upper face cover and the lower face cover 3 and also between the upper face cover and a speaker face on speaker disposition hole sections of the card base 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a voice card having a thickness of 1 mm or less and a thickness of 1.5 mm or less for amplifying an acoustic effect of a speaker which is one of the components.

[0002]

2. Description of the Related Art A conventional voice card is a foldable type having a thickness of about 5 mm as represented by a Christmas card, a melody card, and a greeting card, and each part has a thickness of several mm. The speaker has a plastic cover as a reverberation box to increase the volume. A button battery or a coin battery is used as a battery as a power source. As a result, the thickness of the entire card is increased, the button battery and the coin battery can be easily removed, and there is a problem that a physical injury such as an infant swallows occurs.

In order to solve these problems, there has been proposed a method of manufacturing a thin voice card by using a thin battery or removing a reverberation cover as an improvement of the conventional card, but the volume is reduced. A problem arose. On the other hand, the use of a rectangular thin battery (for example, a lithium polymer battery) having a thickness of 0.5 mm or less has little risk of swallowing by an infant.

[0004]

As described above, the conventional voice card and the improved voice card have problems in terms of thickness and volume. However, the present invention reverberates inside a card body having a thickness of 1.5 mm or less. It is an object of the present invention to form a part and increase the sound volume, and also to prevent an accidental swallowing of the battery, which was conventionally dangerous.

[0005]

The present invention comprises at least a voice IC control circuit, a speaker, a switch, and a thin battery, and each component has a thickness of 1.5 mm or less,
A card board provided with a hole in which each component is arranged,
An upper cover that covers the card board, and a lower cover that fixes the speaker and amplifies the vibration of the speaker, and has a space between the upper cover, the lower cover, and the speaker surface at a speaker placement hole portion of the card board. By providing the voice card, the sound effect is enhanced and a voice card having a thickness of 1.5 mm or less is realized.

The speaker hole is circular, and the distance between the inner peripheral edge and the outer peripheral edge of the speaker is at least 1 m.
By increasing the distance between them, the vibration efficiency of the speaker is increased and the air vibration efficiency is amplified. Furthermore, by arranging the speaker and the thin battery at the corners, when the card is bent, the bending curvature is reduced, and the components are prevented from being damaged.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a voice card having a thickness of 1.5 mm or less according to the present invention will be described below with reference to FIGS.

FIG. 1 is a perspective view of a card component constituting a 1 mm-thick voice card. FIG. 1 shows a top cover 1 made of a resin film on which a product name of a voice card, a design photograph (for example, a photograph of a train) or the like can be printed, and the top cover 1 has a thickness of about 0.1 mm. FIG.
Shows a card substrate 2 having a thickness of about 0.8 mm provided with a slot and a through hole for disposing components such as a voice IC control circuit, a speaker, a switch, and a thin battery. FIG. 3 shows an inner surface of a lower cover 3 made of a resin film on which a notice of a voice card, a name of a manufacturing company, etc. can be printed, the lower cover 3 has a thickness of about 0.1 mm, and a diameter of the card substrate 2. A thin speaker 5 having a diameter of about 25 mm is adhered to a portion located in the through hole 4 having a diameter of about 31 mm.
Gap was made. The thin speaker 5
Is attached to the lower cover 3 after the attachment to the card substrate 2.

Next, the printed circuit board 7 on which the voice IC chip 6 was arranged was bonded in the slot 8 of the card board 2. In addition, a thin battery 10 having a thickness of 0.4 mm made of a lithium polymer battery using a polymer solid electrolyte was disposed in the slot 9 of the card substrate 2 and at least a part thereof was adhered. Next, the pressing switch 12 was arranged in the slot 11 of the card substrate 2 and at least a part thereof was bonded. Further, each pole terminal of the thin battery 10 was electrically connected to a connection terminal of the printed circuit board 7 by soldering or a conductive tape. Press switch 1
2 was connected to the printed circuit board 7 by soldering. next,
The lead wire of the thin speaker 5 is connected to the printed circuit board 7.
Soldered. FIG. 4 is a perspective view of the card substrate 2 in such a connected state. After such wiring, the top cover 1 was attached to the card substrate 2. In addition, in order to fix the thin battery 10 in the slot, a curable resin may be poured. However, in the present embodiment, the resin was not fixed so that the battery could be freely deformed in the slot. Further, the thin battery 10, the thin speaker 5 and the pressing switch 12 may be connected to the printed circuit board 7 in advance. Finally punched out the dimensions of the card. In the case where the sheet is cut into a card size in advance, it is only necessary to attach the card.

FIG. 5 is a cross-sectional view of a portion of the voice card of the present invention configured as described above including the thin speaker 5.
Shown in As is clear from FIG. 5, since the space is provided between the upper surface cover, the lower surface cover, and the speaker surface, the sound effect can be sufficiently exhibited.

The performance of the battery of the present invention, the improved product, and the conventional voice card were compared. The comparison items are (1) voice card thickness (minimum thickness that can be created), (2) sound sensing distance (maximum distance that can be sensed indoors), (3) safety in abuse test (heating, pressurizing, wrong Danger in drinking).

Table 1 shows the results.

[0013]

[Table 1]

As is clear from Table 1, the battery of the present invention has a longer acoustic detection distance in spite of the same thickness as the improved battery. Further, unlike the conventional battery, the battery of the present invention has no risk due to heating and accidental ingestion.

[0015]

As described above, the present invention can be applied to a card having a thickness of 1.5 mm or less, and there is no danger when heated or pressurized by using a lithium polymer battery. By using a rectangular battery of 0.5 mm or less, there is no danger to the infant due to accidental ingestion, and the contents can be discriminated sufficiently within a normal listening distance.

[Brief description of the drawings]

FIG. 1 is a perspective view of a card top cover constituting the present invention.

FIG. 2 is a perspective view of a card substrate constituting the present invention.

FIG. 3 is a perspective view of a card lower surface cover constituting the present invention.

FIG. 4 is a perspective view of a card board on which components constituting the present invention are arranged.

FIG. 5 is a cross-sectional view of a portion of the card substrate on which the thin speaker components constituting the present invention are arranged.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Top cover 2 Card board 3 Bottom cover 4 Through hole for speaker 6 Acoustic IC chip 7 Printed circuit board 10 Thin battery 12 Press switch

Claims (3)

[Claims] 1. A card substrate comprising at least a voice IC control circuit, a speaker, a switch, and a thin battery, each component having a thickness of 1.5 mm or less, and a hole provided with each component. And an upper cover that covers the card board, and a lower cover that fixes the speaker and amplifies the vibration, and is provided between the upper cover, the lower cover, and the speaker surface at the speaker placement hole portion of the card board. A voice card characterized by having a space. 2. The voice card according to claim 1, wherein the speaker hole is circular, and a distance between an inner peripheral edge of the speaker hole and an outer peripheral edge of the speaker is at least 1 mm. 3. The voice card according to claim 1, wherein the speaker and the battery are arranged at corners.