CN2230956Y

CN2230956Y - Book-shape keyboard for baby's audio-video player

Info

Publication number: CN2230956Y
Application number: CN 95222062
Authority: CN
Inventors: 李毅辉
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-09-25
Filing date: 1995-09-25
Publication date: 1996-07-10
Anticipated expiration: 2005-09-25

Abstract

The utility model relates to a book-shaped music keyboard for a baby's audio-video player. The book-shaped music keyboard comprises an upper and a lower covers (1) and book pages which are bound with pictures and music books. The lower part of a bottom page is provided with a music keyboard (3), the inner part of the pedestal of the keyboard is respectively provided with pure sound integrated circuits (4), 3 A (7#) with 12 to 15 sounds, batteries (5), the printed circuit board (6) of a piano keyboard touch switch and a loudspeaker (7), and the upper side of the keyboard is fastened with an upper cover (8). The front side of the printed circuit board and a sounder is provided with the keyboard which is composed of a plurality of touching piano keyboards (9). The utility model has the advantages of low price, easy use, convenient portability, clear pronunciation musical scale, smooth timbre, long after tone, loud sound and stable and exact tone quality.

Description

The in-book form child music keyboard of sightsinging

The utility model belongs to preschool music character learning teaching material, is specifically related to a kind of in-book form child music keyboard of sightsinging.

Existing toy piano, the price comparison costliness, and also keyboard peace down stroke is longer, and volume is big, and children play also certain difficulty, carries also inconvenient.

It is that the scale of one is clear that the purpose of this utility model is to provide a kind of music score, music keyboard of collecting, and tone color is mellow and full, and timbre is sane, accurately, the fullmouthed in-book form child music keyboard of sightsinging.

The in-book form child of the present utility model music keyboard of sightsinging, it is characterized in that comprising that the sightsing top binding of music keyboard of in-book form child in front cover, the front cover up and down has the page of band picture and music score, page background page or leaf bottom is provided with music keyboard, place printed circuit board (PCB) and the acoustical generator that has integrated circuit, battery, key soft-touch control in the base of keyboard respectively, its top buckles a loam cake; The keyboard that is made of several touch keys is set in the place ahead of printed circuit board (PCB) and acoustical generator.

Described integrated circuit is a 12-15 sound pure tone integrated circuit, and acoustical generator adopts and adds the loudspeaker that triode drives, and battery adopts 3V (7#) battery.

The in-book form child of the present utility model music keyboard of sightsinging, the picture that collection is exquisite, grace and interesting music score and music keyboard is one, carry, use all very convenient, and it is cheap again, the positive manner that cooperates keyboard to play with the correct method of fingering hand formula, from the easier to the more advanced, layer by layer deeply, induce children to pass through to drop into music learning, the process of appreciating, grasp playing technique obtains the good development of health, spirit and individual character comprehensively; Since adopted 12-15 sound pure tone integrated circuit, long lingering sound, and timbre is sane and accurate; Because adopt 3V (7#) battery to replace button cell, the electric weight energy storage is big, has guaranteed the bright and tonequality of sound; Add the sound horn that triode drives owing to adopted, coupling is reasonable, and dynamic range is big, and therefore, tone color is mellow and full, megaphonia.

Below in conjunction with accompanying drawing the in-book form child of the present utility model music keyboard of sightsinging is described further:

Fig. 1 is the sightsing structural representation of music keyboard of in-book form child of the present utility model.

Fig. 2 is the sightsing structural representation of music keyboard of music keyboard of in-book form child of the present utility model.

Fig. 3 is that the in-book form child of the present utility model music keyboard circuit of sightsinging connects sterogram.

Fig. 4 is the in-book form child of the present utility model music keyboard circuit board synoptic diagram of sightsinging.

Fig. 5 is the in-book form child of the present utility model music keyboard circuit theory synoptic diagram of sightsinging.

As shown in Figure 1, 2, the in-book form child of the present utility model music keyboard of sightsinging, comprise that the sightsing top binding of music keyboard of up and down front cover [1], interior the in-book form child of front cover [1] has the page [2] of being with picture and music score, the in-book form child sightsings, and the page or leaf bottom is provided with music keyboard [3] at the bottom of the music keyboard, place printed circuit board (PCB) [6] and the acoustical generator [7] that has integrated circuit [4], battery [5], key soft-touch control in the base of keyboard respectively, its top buckles a loam cake [8]; The place ahead at printed circuit board (PCB) and acoustical generator is provided with the keyboard that is touched key [9] formation by several.

Shown in Fig. 3,4,5, the utility model adopts the power supply of 3V (7#) dry cell [5] as integrated circuit, and the electric weight energy storage is big, has guaranteed the bright and tonequality of sound; Integrated circuit [4] adopts 12-15 sound pure tone integrated circuit, long lingering sound, and timbre is sane and accurate; Employing adds loudspeaker [7] sounding that triode drives, and coupling is reasonable, and dynamic range is big, and therefore, tone color is mellow and full, megaphonia.Each key soft-touch control correspondence different scale positions, and different scale position correspondences the different built-in oscillation frequency of the oscillator formation of integrated circuit, thereby forms the series standard scale.Push touch key [9] according to music score, the pleasure that just can emit a dulcet sound is unclamped key [9], and system cuts off the electricity supply automatically, quits work.

Claims

1. in-book form child music keyboard of sightsinging, it is characterized in that: the described in-book form child music keyboard of sightsinging comprises that the sightsing top binding of music keyboard of front cover (1) up and down and the in-book form child in front cover has the page [2] of band picture and music score, the in-book form child sightsings, and the page or leaf bottom is provided with music keyboard [3] at the bottom of the music keyboard, place printed circuit board (PCB) [6] and the acoustical generator [7] that has integrated circuit [4], battery [5], key soft-touch control in the base of keyboard respectively, its top buckles a loam cake [8]; Be provided with by touching the keyboard that key [9] constitutes in the place ahead of printed circuit board (PCB) and acoustical generator.

2. the in-book form child as claimed in claim 1 music keyboard of sightsinging is characterized in that described integrated circuit [4] adopts 12-15 sound pure tone integrated circuit.

3. the in-book form child as claimed in claim 1 music keyboard of sightsinging is characterized in that described acoustical generator is to add the loudspeaker that triode drives.

4. the in-book form child as claimed in claim 1 music keyboard of sightsinging is characterized in that described battery [5] adopts 3V (7#) dry cell.