CN200965991Y - A car fuse box with the buzzer - Google Patents

Abstract

The utility model relates to an automobile disaster box with buzzer and pertains to car electronics. The utility model comprises an outer shell, one side of which is provided with a terminator port, and the other side of the outer shell is provided with a fuse port. A combined laminated plate of three layers and a buzzer circuit board are positioned inside the shell. The buzzer circuit board comprises an input terminator which is connected with the amplifying circuit, and the amplifying circuit is connected with a low tone frequency generator which is provided with a feedback circuit one. The low tone frequency generator is connected with a high tone frequency generator with is provided with a feedback circuit two which is connected with the buzzer.

Description

Car insurance box with buzzer

Technical field

The utility model belongs to automotive electronics, refers in particular to the improvement to safety box.

Background technology

At present, the structure of the safety box of kart adopts plastic casing more, and one side has last lead-out terminal interface, the another side wire connection mouth of insuring, and there are three layers of combination inside in flakes.The shortcoming that this product exists is when breaking down in a certain section circuit, can not carry out clear and definite prompting to the driver, as send alarm sound, and it is where out of joint that the driver can not be found at once, brings hidden danger to traffic safety easily.

Summary of the invention

The utility model provides a kind of car insurance box with buzzer, does not have the problem of alarm sound to solve present safety box.The technical scheme that the utility model is taked is: comprise shell, on this shell one side terminal interface is arranged, the another side wire connection mouth of insuring, there are three layers of combination inside in flakes, it is characterized in that: the fixedly connected buzzer circuit plate of portion in the enclosure, this buzzer circuit comprises, input terminal is connected with amplifying circuit, this amplifying circuit is connected with the bass generator with feedback circuit one, this low frequency generator is connected with the high audio generator with feedback circuit two, and this high audio generator is connected with buzzer.

During use, with being arranged on the automobile, the lead-out terminal interface on relevant wire and plug and the shell pegs graft, when the buzzer input terminal is received input signal, after amplifying circuit amplifies, enter the bass generator, open low frequency generation circuit, low frequency signal produces the bass oscillator signal through feedback circuit one, by the effect of bass oscillator signal, impel the high audio oscillating circuit to open, the high audio signal forms the high audio oscillator signal through feedback circuit two, this signal through ovennodulation is an acoustic oscillations, produce basic buzzer according to input mode is different, weak sound and buzzing continuously make the buzzer sounding.

Advantage of the present utility model is novel structure, by place buzzer in safety box, makes circuit breaking down or close the door when tight, can remind the driver to note by sound, so that in time find fault, is beneficial to traffic safety.

Description of drawings

Fig. 1 is the utility model shell mechanism schematic diagram.

Fig. 2 is the utility model outer casing bottom lead-out terminal interface schematic diagram.

Fig. 3 is the utility model buzzer circuit theory diagram.

Fig. 4 is the utility model buzzer circuit schematic diagram.

Embodiment

Referring to Fig. 1, Fig. 2 and Fig. 3, comprise shell, on this shell one side terminal interface 1 is arranged, the another side wire connection mouth 2 of insuring, there are three layers of combination inside in flakes, the fixedly connected buzzer circuit plate 3 of portion in the enclosure, this buzzer circuit comprises that input terminal is connected with amplifying circuit, and this amplifying circuit is connected with the bass generator with feedback circuit one, this bass generator is connected with the high audio generator with feedback circuit two, and this high audio generator is connected with buzzer.

Referring to Fig. 4, buzzer circuit adopts 4011 chips, pin 7 ground connection of 4011 chips, and pin 14 connects power supply, and pin 3 connects buzzer, input terminal J ₁Ground connection; Input terminal J ₂Through diode D ₁, resistance R ₁₁Ground connection, also meet diode D ₂Negative pole, this input terminal J ₂Also with resistance R ₇, capacitor C ₄Connect, and be connected C with 4011 pin 12 ₄Other end ground connection; Input terminal J ₃Through diode D ₃, resistance R ₁₂With triode T ₂Base stage and resistance R ₁₀Connect this input terminal J ₃Also with diode D ₄, resistance R ₈Pin 14, another road are through resistance R ₁₄Meet triode T ₃Base stage is also with triode T ₃Emitter, resistance R ₁₅Ground connection; Input terminal J ₄Connect diode D ₅Negative pole, resistance R ₁₆, an end and resistance R ₁₃, triode T ₃Base stage connect another terminating diode D ₆Negative pole, diode D ₆Positive pole meet input terminal J ₆, input terminal J ₅Meet diode D ₇Anodal, diode D ₇Negative pole connects resistance R ₈, connecting pin 14, this input terminal also with diode D ₈The anodal connection, this diode cathode connects resistance R respectively ₉, triode T ₂Collector electrode, another terminating diode D ₉Negative pole, D ₉Positive pole and triode T ₁Base stage connects, triode T ₁Collector electrode connects resistance R ₄, ground connection, also and resistance R ₁, pin 5 connects, also with diode D ₁₀Negative pole connects, pin 10 and diode D ₁₀Anodal connection, triode T ₁Emitter and diode D ₂Anodal, resistance R ₁₁Ground connection, diode D ₂Negative pole and D ₁Negative pole connects, triode T ₁Emitter and triode T ₃Collector electrode connect, pin 10 connects capacitor C ₁, meet D simultaneously ₁₀Positive pole, capacitor C ₁Other end connecting resistance R ₅, pin 11, pin 8 and pin 9, also and resistance R ₆, pin 13 connects, and the pin 1 of chip, pin 2 and pin 4 are connected, and pin 3 one tunnel connects buzzer, and another road is through capacitor C ₃, resistance R ₂Connecting pin 6, capacitor C ₃Also with resistance R ₃Connect, chip pin 5 meets diode D ₁₀Negative pole, pin 8, pin 9 are connected with pin 11.

Three kinds of way of outputs:

1, when J2, J3 are high level, is output as basic buzzer;

2, when J2, J5 are high level, be output as basic buzzer;

3, when J2, J3 be that high level, J4 are continuous buzzer during for low level;

4, when J2, J6 are high level, be output as weak sound.

Claims (2)

1, a kind of car insurance box with buzzer, comprise shell, on this shell one side terminal interface is arranged, the another side wire connection mouth of insuring, there are three layers of combination inside in flakes, it is characterized in that: the fixedly connected buzzer circuit plate of portion in the enclosure, this buzzer circuit comprises, input terminal is connected with amplifying circuit, this amplifying circuit is connected with the bass generator with feedback circuit one, this low frequency generator is connected with the high audio generator with feedback circuit two, and this high audio generator is connected with buzzer.

2, the car insurance box with buzzer according to claim 1, it is characterized in that buzzer circuit comprises: buzzer circuit adopts 4011 chips, pin 7 ground connection of 4011 chips, pin 14 connects power supply, and pin 3 connects buzzer, input terminal J ₁Ground connection; Input terminal J ₂Through diode D ₁, resistance R ₁₁Ground connection and diode D ₂Negative pole, this input terminal J ₂Also with resistance R ₇, capacitor C ₄Connect, and be connected C with 4011 pin 12 ₄Other end ground connection; Input terminal J ₃Through diode D ₃, resistance R ₁₂With triode T ₂Base stage and resistance R ₁₀Connect this input terminal J ₃Also with diode D ₄, resistance R ₈Pin 14, another road are through resistance R ₁₄Meet triode T ₃Base stage is also with triode T ₃Emitter, resistance R ₁₅Ground connection; Input terminal J ₄Connect diode D ₅Negative pole, resistance R ₁₆, an end and resistance R ₁₃, triode T ₃Base stage connect another terminating diode D ₆Negative pole, diode D ₆Positive pole meet input terminal J ₆, input terminal J ₅Meet diode D ₇Anodal, diode D ₇Negative pole connects resistance R ₈, connecting pin 14, this input terminal also with diode D ₈The anodal connection, this diode cathode connects resistance R respectively ₉, triode T ₂Collector electrode, another terminating diode D ₉Negative pole, D ₉Positive pole and triode T ₁Base stage connects, triode T ₁Collector electrode connects resistance R ₄, ground connection, also and resistance R ₁, pin 5 connects, also with diode D ₁₀Negative pole connects, pin 10 and diode D ₁₀Anodal connection, triode T ₁Emitter and diode D ₂Anodal, resistance R ₁₁Ground connection, diode D ₂Negative pole and D ₁Negative pole connects, triode T ₁Emitter and triode T ₃Collector electrode connect, pin 10 connects capacitor C ₁, meet D simultaneously ₁₀Positive pole, capacitor C ₁Other end connecting resistance R ₅, pin 11, pin 8 and pin 9, also and resistance R ₆, pin 13 connects, and the pin 1 of chip, pin 2 and pin 4 are connected, and pin 3 one tunnel connects buzzer, and another road is through capacitor C ₃, resistance R ₂Connecting pin 6, capacitor C ₃Also with resistance R ₃Connect, chip pin 5 meets diode D ₁₀Negative pole, pin 8, pin 9 are connected with pin 11.

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