CN2100925U

CN2100925U - Electronic imitation fire crackers

Info

Publication number: CN2100925U
Application number: CN 91226781
Authority: CN
Inventors: 叶科泰
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-10-10
Filing date: 1991-10-10
Publication date: 1992-04-08

Abstract

The utility model discloses electronic imitation firecrackers, comprising a firecrackers model and a body. The body is filled with a firecrackers-sound generator and a music felicitate generator. When imitates and sets off, an igniting start switch is touched, firecrackers sound and light are sent out, the utility model can play music congratulation automatically after the firecrackers sound over, and the utility model has sound, light and form. When a music congratulation card is changed, the celebration form can also be changed. As the device uses no powder, the utility model has safe production, safe transportation, safe storage, safe use, no pollution and repeated use, the expenses is saved, and the utility model can replace traditional firecrackers.

Description

Electronic imitation fire crackers

The utility model relates to the applying electronic generator and produces musical sound technology, especially electronic simulation firecrackers.

Market finding tradition firecrackers adopt multilayer toilet paper sealed envelope gunpowder, the centre is formed by connecting with a fuse cord, the firecrackers of some quantity link into a string by lead-in wire, set off the time point combustion wire, the gunpowder flash fire produces gas and makes volume crowded paper roll explosion, generation explosive sound, flicker flame and the smog opened of expansion rapidly.Because sparks flying off in all directions, cause fire easily, paper scrap, the smell of gunpowder also cause severe contamination to environment; Because it is traditional firecrackers are made raw material based on gunpowder, inflammable and explosive again, all dangerous property of its processing, transportation, storage and use, very dangerous.No Fireworks in the explicit order urban district, many cities.

The purpose of this utility model is to provide a kind of to the public can satisfy Chinese traditional habit requirement, produces, transports, stores, uses all very safety electronic simulation firecrackers free from environmental pollution again.

In order to achieve the above object, the utility model adopts following technical solution: the miniature bulb that at least one drive circuit drives flash of light is installed, the flash of light shape when being used for Simulation firecracker and setting off on the firecrackers model of bunchiness; A firecrackers sound signal generator, be used to produce Simulation firecracker acoustical signal and trigger impulse, the firecrackers acoustical signal that it is exported respectively is fed to the input of audio-frequency power amplifier that load is a loudspeaker and the input of described driving flasher circuit respectively, after firecrackers sound finishes, by independent pulse output end output trigger impulse; A music congratulatory words signal generator, be used to produce melody and language congratulatory words signal, the triggering input of this generator is connected with the pulse output end of described firecrackers sound signal generator, have only through the pulse-triggered of described firecrackers sound signal generator output and just work, the music congratulatory words signal of its output also is fed to the input of described audio-frequency power amplifier; Rectification and voltage-stabilized power supply are used for providing required working power to foregoing circuit.

The utility model is owing to adopt the electronic installation Simulation firecracker acoustic luminous, without gunpowder, thereby produce, transport, store, use all very safe, save gunpowder, paper, pollution-free, can use repeatedly, newly-increased simultaneously music congratulatory words function, change music congratulatory words card and can distinguish the celebration form, increase celebrating atmosphere, also can make the usefulness of interior decoration at ordinary times.

Fig. 1 is an overall structure diagrammatic sketch of the present utility model.

Fig. 2 is a circuit diagram.

Below in conjunction with accompanying drawing the utility model is described in further detail:

As can be seen from Figure 1, whole device is made up of body and firecrackers model two parts.Wherein the firecrackers model is a discrete parts.

Body 1 is prismatic, can certainly be designed to other shape, hook 2 is equipped with on the plane, top, power line is drawn from the plane, top, two fronts of symmetry are decorative pattern 3, pattern can be the happiness word, it also can be the pattern that other symbol is had good luck, power transformer T is installed in the abdominal cavity, loudspeaker B and circuit board 5, the luminous connection lead of control flash of light miniature bulb is drawn by the lower end breach of body 1, the firecrackers model about 7 minutes two rows aerial by the suspention that strings of lead and rope 6 woollen yarn knittings, flash of light miniature bulb H sporadicly distributes, the surface is coated with colourful, colorful when luminous, resplendent, but rendered atmosphere, and foot is equipped with sets off starting switch S, plug 4 plugs in during use, two refer to gently press S, and firecrackers sound promptly sends from loudspeaker, and miniature bulb and firecrackers sound synchronous light-emitting simultaneously glisten, after firecrackers sound finishes, there are music and language congratulatory words to broadcast.

Fig. 2 is a circuit diagram.Form by rectification and voltage-stabilized power supply, firecrackers sound signal generator, music congratulatory words signal generator, audio-frequency power amplifier and driving flasher circuit.

Rectification and voltage-stabilized power supply are by transformer T, bridge rectifier diode V ₁-V ₄, three end integrated voltage regulator source A ₁, filter capacitor C ₁-C ₃, divider resistance R ₁, R ₂Constitute.When T elementary has the civil power input, induce an induced voltage that is proportional to primary voltage at secondary two ends, through V ₁-V ₄Rectification, A ₁Voltage stabilizing, C ₁-C ₃Directly provide working power after the filtering, another route R to load ₁, R ₂Divide and press to A ₃, A ₄Working power is provided.

Firecrackers sound signal generator A, adopt solid recording playback sound technology will " the thunderbolt crack ... bang " firecrackers sound its data are solidificated in the soft encapsulated integrated circuit after by the A/D converter sampling, it has six outputs; Wherein output 8 and volume control potentiometer R ₃Input 18 be connected R ₃Movable contact be that output 19 connects audio-frequency power amplifier A ₂Input end capacitor C ₄, regulate R ₃Intrinsic standoff ratio can change the size of output volume; Output 10-13 respectively with drive flasher circuit V ₅-V ₈Input be connected; Output 9 direct A ₄Triggering input 16; 14,15 end outsides are connected to the aforesaid switch S of manually setting off, and every manual triggers once can produce continuous 20-60 the Simulation firecracker sound and a triggering signal in second.

Music congratulatory words signal generator A ₄Serve as by a soft encapsulated integrated circuit that is solidified with melody and language congratulatory words.Send into when input 16 has trigger impulse, output 17 promptly has the output of music congratulatory words signal to be fed to R ₃Input 18.A ₄Be designed to connected structure, every content is different, for example red-letter day congratulatory words, birthday congratulatory words, wedding celebration congratulatory words etc., can change flexibly according to the form of celebration needs.

Audio-frequency power amplifier is by power discharging integrated block A ₂, cross-talk device B, capacitor C ₄-C ₇Constitute.C wherein ₄Be input every straight coupling capacitance, C ₇Be every straight output capacitance.

Drive flasher circuit by transistor V ₅-V ₈, miniature bulb H ₁-H ₄Constitute.The quantity of every road miniature bulb can increase and decrease with the need, connected mode both can be used a plurality of parallel connections, also can use a plurality of series connection, and dotted portion illustrates form in parallel and series connection among the figure.

The course of work of entire circuit is: connect power supply, touching, S gives A ₃A triggering signal, circuit promptly starts up, A ₃ Output 8 output firecrackers acoustical signals through R ₃Dividing potential drop is by C ₄Be coupled to A ₂ Input 20 carry out after the power amplification by output 21 outputs, Alternating Component passes through C ₇Promote the B sounding, change R ₃The size of WITH THE ADJUSTABLE INTRINSIC STAND-OFF RATIO joint output volume.While A ₃10-13 end output with the firecrackers acoustical signal in turn the triggering level of upset each input of being fed to drive circuit respectively be V ₅-V ₈Base stage, control drives and to be serially connected in V ₅-V ₈The miniature bulb H of colelctor electrode ₁-H ₄With firecrackers sound synchronization flash.After firecrackers sound finishes, A ₃Output 9 output one pulse to A ₄Triggering input 16, trigger A ₄Work, at its output 17 outputting music congratulatory words signals through R ₃Dividing potential drop is sent into power amplifier and is carried out power amplification and remove to promote the B sounding.After this S circuit of every shake-up promptly repeats said process once.

Claims

1, a kind of electronic simulation firecrackers comprise that rectification and voltage-stabilized power supply, load are the audio-frequency power amplifier of Yang Sheng device, it is characterized in that:

At least one is installed on the firecrackers model of bunchiness drives miniature bulb of flash of light, the flash of light shape when being used for Simulation firecracker and setting off by at least one drive circuit;

A firecrackers sound signal generator, be used to produce Simulation firecracker acoustical signal and trigger impulse, the firecrackers acoustical signal that it is exported respectively is fed to described audio-frequency power amplifier respectively and drives the input of flasher circuit, after firecrackers sound finishes, by independent pulse output end output trigger impulse;

A music congratulatory words signal generator, be used to produce melody and language congratulatory words signal, the triggering input of this generator is connected with the pulse output end of described firecrackers sound signal generator, have only through the pulse-triggered of described firecrackers sound signal generator output and just work, the music congratulatory words signal of its output is fed to the input of described audio-frequency power amplifier.