CN2225075Y

CN2225075Y - Automatic electronic pronunciationt raining instrument

Info

Publication number: CN2225075Y
Application number: CN 94247567
Authority: CN
Inventors: 张叶基
Original assignee: ZHANG YEJI C
Current assignee: ZHANG YEJI C
Priority date: 1994-11-16
Filing date: 1994-11-16
Publication date: 1996-04-17
Anticipated expiration: 2004-11-16

Abstract

The utility model relates to an automatic electronic pronunciation training instrument, comprising a bottom casing, a base board, a built-in circuitboard, a loudspeaker, a speech chip fixed on the circuitboard, and an amplifying circuit. The automatic electronic pronunciation training instrument is characterized in that the amplifying circuit adopts an operational amplification manifold block; the triggered feet of the speech chip are controlled by keys arranged on the panel, and each triggered foot is corresponding to one key; the surfaces of the keys are provided with letter symbols or patterns; one key is pressed, which enables one corresponding triggered foot to be conducted, and then the speech chip sends out speech which is associated to the information on the surface of one key. The utility model has the advantages of simple structure, convenient operation, and clear pronunciation.

Description

The automatic sounding pronunciation of electronics device

The utility model relates to children's teaching aid toy, the automatic sounding pronunciation of particularly a kind of electronics that is used to learn by oneself device.

Disclose a kind of pinyin learning machine in patent CN2146752Y, its structure comprises the circuit part and several outer Pinyin cards that indicate different Chinese alphabetic writings and teach figure of casing in the casing.Its circuit is made up of speech chip, Yang Shengqi, triode, adopts single-valve amplification circuit.Pinyin card is provided with the pronunciation short-circuit conductors, its short-circuit conductors position difference of different cards, in card inserted casing, short-circuit conductors was connected the triggering pin of speech chip, make its send one with the pronunciation of card record identical information.This patent structure is simple, but the pronunciation exercise time looks for card and plug-in card comparatively loaded down with trivial details, and it is not ideal enough to adopt single tube to amplify tonequality.

The purpose of this utility model is the automatic acoustical generator of electronics of a kind of keyboard-type of design, and utilizes kind its sounding tonequality that changes of general integrated amplifier.

Task of the present utility model is finished like this: by bottom shell body, panel, internal circuit board and Yang Shengqi, and be fixed on the automatic sounding pronunciation of the electronics device that speech chip on the circuit board and amplifying circuit are formed.It is characterized in that amplifying circuit selects for use the computing amplifier integrated block with general peripheral circuit structure, the input end of computing amplifier integrated block is delivered in the output of speech chip after the change signal size of capacitor C 4 couplings and potentiometer, its output is connected with loudspeaker after capacitor C 6; Panel is provided with key-position area, key-position area is divided into each button, keytop is provided with literal, symbol or pattern, each button bottom surface is provided with a conductor piece, there is the triggering pin lead of a speech chip to become not alternative arrangement on the circuit board of conductor piece correspondence with the common port lead, push wherein a button and make one to trigger pin and common port conducting, speech chip sends one and the voice of keytop relevant information.

The utility model is simple in structure, compact to design, portably use conveniently, lamprophonia, favourable have in children learn by oneself, and help the standardization of pronunciation.

Below in conjunction with concrete legend the utility model is described further:

Fig. 1, the utility model circuit theory diagrams

Fig. 2, the utility model schematic appearance

Fig. 3, Fig. 2 A-A cut-open view

With reference to Fig. 1, speech chip IC can fire according to the design needs, the pronunciation device of this example is a Combining sound spelling device, determine the triggering pin of speech chip by the alphabetical number of phonetic, as 63 of phonetic alphabet, be that speech chip IC has at least 63 to trigger pin, 2 pin among the figure, 6～67 pin are the triggering pin, common port joins through resistance R 3 and positive source, 1 pin and 5 pin are for holding altogether and joining with power cathode, 3 pin are received power supply negative terminal through the R1C2 of parallel connection circuit, and the input end of 4 pin to be output pin deliver to after capacitor C 4 couplings and potentiometer W change signal size integrated package (LM be an example) amplifies, and amplify to export after capacitor C 6 to be connected with loudspeaker and improve tonequality.The peripheral circuit of above-mentioned speech chip IC and computing amplifier integrated block is general circuit structure.

With reference to the outside drawing of Fig. 2, panel 1 is provided with key-position area 2, and key-position area is divided into each concrete button 3, and the surface of button 3 is printed on phonetic symbol, and potentiometer knob 9 is located at the side.

With reference to the cut-open view of Fig. 3, bottom shell body 8, panel 1, be built-in with circuit board 5 and loudspeaker 6 is gone into battery 7, it is conductive rubber 4 that the bottom surface of button 3 is fixed with conductor, is used for connecting triggering pin and common port, button 3 can adopt the button that highlights on panel 1, also of resilient panel 1 itself.

Claims

1, the automatic sounding pronunciation of a kind of electronics device, comprise bottom shell body, panel, internal circuit board and loudspeaker and be fixed on speech chip and amplifying circuit on the circuit board, it is characterized in that amplifying circuit selects the computing amplifier integrated block for use, and general peripheral circuit structure, the input end of integrated package is delivered in the output of speech chip after the change signal size of capacitor C 4 couplings and potentiometer W, its output is connected with loudspeaker after capacitor C 6; Panel is provided with key-position area, key-position area is divided into each button, keytop is provided with literal, symbol or pattern, each button bottom surface is provided with a conductor piece, there is the triggering pin lead of a speech chip to become not alternative arrangement on the circuit board of conductor piece correspondence with the common port lead, push wherein a button and make one to trigger pin and common port conducting, speech chip sends one and the voice of keytop relevant information.