CN202383780U - Musical buzzer - Google Patents

Abstract

The utility model provides a musical buzzer, comprising a buzzer, a control circuit, and a power supply used for providing a voltage enabling the buzzer to produce a music; wherein the control circuit consists of a music chip, a triode, a resistor and a horn; one pin of the music chip is connected with a base electrode of the triode, the other two pins of the music chip are respectively connected with a positive electrode and a negative electrode of the power supply; a collector electrode of the triode is connected with the positive electrode of the power supply through the resistor, an emitter electrode of the triode is connected with the negative electrode of the power supply; and the horn is connected in parallel with the resistor. The musical buzzer of the utility model utilizes a music sounder in the control circuit to produce a sweet music, thereby providing comfortable enjoyments for people, and overcoming the defect that the traditional buzzer can only produce one kind of sound which is tedious. In addition, an operating voltage of the musical buzzer is 3V, therefore, the musical buzzer of the utility model has the advantages of low energy consumption and energy saving.

Description

The hummer of band music

Technical field

The utility model relates to a kind of hummer, particularly relates to a kind of hummer with music.

Background technology

Pronunciation device adopts hummer mostly at present, and is as shown in Figure 1, adopts an output port just can control its sounding well; Control circuit is simple, as long as the square wave of importing about 4kHz at circuit input end just can make the hummer sounding, software is realized easily; Its shortcoming is when the signal input; Hummer can only send a kind of sound, and sound is dull, and the user is felt comfortably cool.

The utility model content

The utility model technical matters to be solved provides a kind of hummer with music, and this hummer can send music.Make the user feel comfortable melodious.WV is 3V, and energy consumption is low.Energy savings.

The technical scheme that the utility model technical solution problem is adopted is: a kind of hummer with music; Comprise hummer and control circuit, also comprise power supply, provide said hummer to send the voltage of music; Said control circuit is made up of Music Clip, triode, resistance and loudspeaker; The pin position of said Music Clip and the base stage of triode are joined, and two pin positions in addition of said Music Clip link to each other with the power supply positive and negative polarities respectively, and the collector of said triode passes through resistance and is connected with positive source; The emitter of said triode is connected with power cathode, and said loudspeaker are attempted by on the said resistance.

Further be: the rated voltage of said hummer is 3V, voltage range between 2.5 ~ 3.5V, rated current≤45mA, sound pressure level>=85dB.

The beneficial effect of the utility model is: the utility model adopts the music hummer; Music acoustical generator according in the control circuit sends melodious music, gives comfortable enjoyment; Overcome traditional hummer and can only send a kind of sound, the plodding deficiency of pronouncing.

Description of drawings

Fig. 1 is the synoptic diagram of existing pronunciation device,

Fig. 2 is the profile synoptic diagram of the utility model,

Fig. 3 is the synoptic diagram of the utility model control circuit.

1-control circuit 2-hummer 3-Music Clip 4-loudspeaker V0-triode R-resistance

Embodiment

The synoptic diagram of at present common pronunciation device is as shown in Figure 1, adopts its sounding of port controlling, and control circuit is simple, and input port needs only the square wave of importing about 4kHz at circuit just can make hummer 2 sounding.

As shown in Figure 2, the hummer profile of the utility model is cylindrical, and there are two stitch the below, and stitch is distinguished polarity through length.The utility model can be inserted in the various circuit and report to the police.

Preferred embodiment below in conjunction with description of drawings the utility model:

Above-mentioned control circuit is made up of Music Clip 3, triode V0, resistance and loudspeaker 4; The base stage of the right foot position of said Music Clip 3 and triode V0 is joined; The collector of triode V0 is connected with positive source through resistance; The emitter of triode V0 is connected with power cathode, and loudspeaker 4 are attempted by on the resistance R.When power connection, Music Clip 3 both positive and negative polarities get electric, and Music Clip 3 output signals amplify through triode V0 rectification, and input loudspeaker 4 play out music.The rated voltage of the utility model is 3V, voltage range between 2.5 ~ 3.5V, rated current≤45mA, sound pressure level>=85dB, resonance frequency is 2000 ± 200Hz, working temperature is-20 ~+45 ℃, storage temperature is-20 ~+60 ℃, weight is 2g.

The utility model makes hummer have the function of the music sent through in original hummer, increasing a Music Clip 3, can in various prompting devices, musical toy, alarm, use.Said Music Clip 3 can adopt DT64CD.

Claims (2)

1. hummer with music; Comprise hummer (2) and control circuit (1); It is characterized in that: also comprise power supply; The voltage that provides said hummer (2) to send music, said control circuit is made up of Music Clip (3), triode (V0), resistance and loudspeaker (4), and the pin position of said Music Clip (3) and the base stage of triode (V0) are joined; Two pin positions in addition of said Music Clip (3) link to each other with the power supply positive and negative polarities respectively; The collector of said triode (V0) is connected with positive source through resistance (R), and the emitter of said triode (V0) is connected with power cathode, and said loudspeaker (4) are attempted by on the said resistance (R).

2. the hummer of band music as claimed in claim 1 is characterized in that: the rated voltage of said hummer is 3V, voltage range between 2.5 ~ 3.5V, rated current≤45mA, sound pressure level>=85dB.

Images