CN202694770U

CN202694770U - Music box with singlechip

Info

Publication number: CN202694770U
Application number: CN 201220369794
Authority: CN
Inventors: 吴德权; 喻异双; 胡海成; 王玉玺; 蔡佳佳; 段姗姗; 姚亮
Original assignee: Hubei University of Automotive Technology
Current assignee: Hubei University of Automotive Technology
Priority date: 2012-07-30
Filing date: 2012-07-30
Publication date: 2013-01-23
Anticipated expiration: 2022-07-30

Abstract

The utility model relates to a music box with a singlechip. The music box comprises a box body, wherein a circuit board is arranged in the box body and is respectively connected with a singlechip, a key group, a display screen, a data interface, a power switch and a storage battery at the same time; the circuit board is also provided with a plurality of parallel relays; and armatures in the relays are corresponding to sound producing reeds arranged in the box body. The music box is accessed to a computer through a USB (Universal Serial Bus) data interface, Mp3 (Moving Picture Experts Group Audio Layer-3) music is downloaded and stored in the music box, a certain music file is selected through the key group and is compiled into electric signals through the singlechip, the armatures in the relays are driven and metal reeds are knocked by the armatures to produce sound. The data memory space of the music box is large, the playing time is long, the control is precise, the tone quality is exquisite and the music box is more beautiful under the fluorescent effect of the display screen.

Description

A kind of single-chip microcomputer music box

Technical field

The utility model relates to a kind of music box, especially a kind of single-chip microcomputer music box.

Background technology

At present, known music box is mechanical type or electronic type.The mechanical type music box drives a speed stabilizing mechanism with the clockwork spring that tightens by the series of gears group, so that band rotates with constant speed by the cam drum of certain music score establishment, drives the pronunciation reed and plays music; But the mechanical type music box is subjected to the restriction of clockwork spring length and cylinder size, can only record one section single melody, and song can't be changed, and playing time is short, and is subjected to clockwork spring degree of tightness and gear train Accuracy, and bent speed is play inhomogeneous.The electronic type music box produces the square wave of different frequency by the timer of control single chip computer inside, drives the music that loudspeaker send different tones, and the music storage capacity is large, the easy distortion but loudspeaker pronounce, and tonequality is relatively poor, has weakened the quality of music box.

Summary of the invention

The utility model proposes a kind of single-chip microcomputer music box, this music box combines the advantage of electronic musical case and mechanical music box, has increased amount of data storage, has prolonged reproduction time, can also send graceful sound.

The technical solution of the utility model is: a kind of single-chip microcomputer music box, comprise box body, be provided with circuit board in the box body, circuit board is connected respectively with single-chip microcomputer, key groups, display screen, data-interface, power switch, accumulator simultaneously, it is characterized in that: the relay that also is provided with a plurality of parallel connections on the circuit board, armature in the relay is corresponding with the pronunciation pornographic movie in being arranged on box body, and armature knocks the pronunciation reed by the electric signal of single-chip microcomputer output.

Beneficial effect: a kind of single-chip microcomputer music box, this music box is by usb data interface access computer, downloaded stored MP3 format music, select certain music file by key groups, be electric signal by single chip compilation, drive the armature in the relay, make armature knock metal spring leaf and sound.This music box memory data output is large, and reproduction time is long, and control is accurate, and tonequality is graceful, and more attractive in appearance under the fluorescent effect of display screen.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is electrical block diagram of the present utility model.

Fig. 3 is circuit theory diagrams of the present utility model.

1 is box body among the figure, the 2nd, and circuit board, the 3rd, single-chip microcomputer, the 4th, key groups, the 5th, display screen, the 6th, data receiver mouth, the 7th, power switch, the 8th, accumulator, the 9th, relay, the 10th, pronunciation reed, the 11st, driving circuit.

Embodiment

As shown in Figure 1, a kind of single-chip microcomputer music box, comprise box body 1, be provided with circuit board 2 in the box body 1, circuit board 2 is connected respectively with single-chip microcomputer 3, key groups 4, display screen 5, data-interface 6, power switch 7, accumulator 8 simultaneously, also be provided with the relay 9 of a plurality of parallel connections on the circuit board 2, the armature in the relay 9 is corresponding with the pronunciation pornographic movie 10 in being arranged on box body 1, and armature knocks pronunciation reed 10 by the electric signal of single-chip microcomputer 3 outputs.

Claims

1. single-chip microcomputer music box, comprise box body, be provided with circuit board in the box body, circuit board is connected respectively with single-chip microcomputer, key groups, display screen, data-interface, power switch, accumulator simultaneously, it is characterized in that: the relay that also is provided with a plurality of parallel connections on the circuit board, armature in the relay is corresponding with the pronunciation pornographic movie in being arranged on box body, and armature knocks the pronunciation reed by the electric signal of single-chip microcomputer output.