CN202448918U

CN202448918U - Automobile gating warning device

Info

Publication number: CN202448918U
Application number: CN2011205211227U
Authority: CN
Inventors: 刘德军; 黄勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-13
Filing date: 2011-12-13
Publication date: 2012-09-26
Anticipated expiration: 2021-12-13

Abstract

The utility model relates to an automobile gating warning device. The warning device consists of a 12V DC (Direct Current) power supply, a gating switch and level balancing circuit, a time delay circuit, an imbalance signal amplifying circuit and a unidirectional silicon-controlled rectifier control and trigger circuit; in the gating switch and level balancing circuit, an anode of a silicon diode D1 is connected with one end of a gating switch AN2; after being connected in series with a gating switch AN 1, the other end of the gating switch AN2 is connected with an anode VCC (Voltage To Current Converter) of the 12V DC power supply; a cathode of the silicon diode D1 is connected with a cathode of a silicon diode D2 and one end of a resistor R1; and the other end of the resistor R1 is connected with a circuit ground GND. The automobile gating warning device made of few discrete components, which is disclosed by the utility model, is an auxiliary warning and reminding device aiming at the condition that a certain automobile door of a vehicle is accidentally opened or the vehicle door is not closed well. Once the warning device enters a warning state, a person who is not an owner cannot reset a warning device circuit and the working power supply of the warning device can be switched off only by an automobile key, or a piezoelectric buzzer in the circuit can continuously buzz.

Description

The car door controller alarm device

Technical field

The utility model belongs to Eltec and vehicle electric field, relates to a kind of car door controller alarm device.

Background technology

Popular in the market alarms and security systems for automobiles mainly contains:

First kind of electronic alarm system is the flash of light warning system, and light-emitting diode is housed on Automobile instrument, both can let the car owner know the mode of operation of this system, also can play the threatening effect to the car thief of spying upon the compartment;

Second kind of electronic alarm system can be sent threatening property signal, in case there is the people to swarm into the compartment without authorization, this warning system can give the alarm to car owner at a distance.Concrete principle is that the receiver of carrying to the car owner sends warning signal when car door, luggage compartment lid or car bonnet are removed by the people by force;

The third is the super sonic annunciator, the similar cassette recorder size of super sonic annunciator.This annunciator is to utilize ultrasonic transmitter to send pulse ultrasonic wave.In the time of in the people slips into car, the super sonic receiver just is interfered, and annunciator starts warning at once.Be provided with the microwave signal handler in this warning, switch is the coded lock of one group of 4 bit digital.In the time of in the car owner is seated in car, there is 15 seconds time to let the car owner initiatively turn off siren horn, to avoid the mistake ring.And the burglar can't close siren horn owing to do not know password, no matter where automobile is reached, always annunciator is ceaselessly piping.

The described car door controller alarm device of the utility model uses a small amount of discrete component to make, and it is to be opened or car door does not close good a kind of minor alarm, alarm set to certain car door accident.This alarm device is in case alert state is reported in entering, and non-car owner can't make warning circuit reset, and reset to use automobile key could cut off the working power of this alarm device, otherwise piezoelectric buzzer will ceaselessly pipe in the circuit.Under normal circumstances, when the car owner into the car after, have time of 10 seconds initiatively to close the power supply of alarm device approximately.Can know that from the circuit working principle the utility model can also not closed the alarm set that puts in place as car door.

Below specify this car door controller alarm device and make related relevant technologies measure.

The utility model content

Goal of the invention and beneficial effect: the car door controller alarm device that the utility model uses a small amount of discrete component to make is to be opened or car door does not close good a kind of minor alarm, alarm set to automobile car door accident.In a single day this alarm device gets into alarm status, and non-car owner can't make the circuit reset of alarm device, can only use automobile key could cut off the working power of alarm device, otherwise the piezoelectric buzzer in the circuit will ceaselessly pipe.Under normal circumstances, in the car owner gets into automobile after, can in 15 second time, initiatively close the working power of alarm device.Can know that from the circuit working principle the utility model can also not closed the alarm set that puts in place as car door.

The circuit working principle: when the source switch SW of automobile connected the 12V direct supply, the 12V battery tension of automobile was added on the circuit, and this moment, the circuit of gate alarm device was in readiness for action.

When automotive door was shut, mutual series connected door contact AN1～AN2 all was in " connection " state, and 12V direct supply voltage all is added in the two ends of resistance R 1, and silicon rectifier diode D2 is ended.It is thus clear that the effect of resistance R 1 is to stop silicon transistor VT1 conducting, at this moment the circuit of gate alarm device is in readiness for action.If when having the people to open a certain car door of automobile; Corresponding door contact AN becomes off-state, after circuit was delayed time 10 seconds through chemical capacitor C1, and silicon transistor VT1 conducting; Then make triggering one-way SCR VS conducting cause piezoelectric buzzer YA to pipe, show that this moment non-car owner has opened car door.Even if at this moment shut automotive door rapidly, one-way SCR VS still keeps conducting, piezoelectric buzzer YA pipes and can not stop.

Make the circuit reset of gate alarm device, can only use automobile key power cutoff switch SW, when the circuitry cuts 12V of gate alarm device direct supply, piezoelectric buzzer YA just can stop to pipe.Under normal circumstances, the car owner has 10 second time initiatively to turn off the 12V direct supply of gate alarm device after being seated in the car approximately.

Technical scheme: the car door controller alarm device, to form by 12V direct supply, door contact and potential balance circuit, time delay circuit, unbalance signal amplification circuit, one-way SCR control and trigger circuit, its characteristic comprises:

Door contact and potential balance circuit: form by door contact AN1～AN2 and silicon diode D1, silicon diode D2 and resistance R 1; The positive pole of silicon diode D1 connects the end of door contact AN2; Link to each other with the anodal VCC of 12V direct supply behind the other end serial connection door contact AN1 of door contact AN2; The negative pole of silicon diode D1 connects the negative pole of silicon diode D2 and an end of resistance R 1, the other end connection circuit ground GND of resistance R 1;

Time delay circuit: form the emitter of a termination silicon transistor VT1 of the positive pole of chemical capacitor C1 and resistance R 2, the other end connection circuit ground GND of the negative pole of chemical capacitor C1 and resistance R 2 by chemical capacitor C1 and resistance R 2;

Unbalance signal amplification circuit: the base stage of silicon transistor VT1 connects the positive pole of silicon diode D2, and the collecting electrode of silicon transistor VT1 meets the anodal VCC of 12V direct supply, and the emitter of silicon transistor VT1 connects the positive pole of silicon diode D3;

One-way SCR control and trigger circuit: the negative pole with silicon diode D3 behind the control utmost point series resistor R3 of one-way SCR VS joins; The anode of one-way SCR VS meets the anodal VCC of 12V direct supply, and the negative electrode of one-way SCR VS is connected in series connection circuit ground GND behind the high loudness piezoelectric buzzer YA.

Description of drawings

Accompanying drawing 1 is the embodiment circuit working schematic diagram that the utility model provides a car door controller alarm device; Circuit ground GND in the accompanying drawing 1 is the bonding of automobile; The number of required door contact AN should be confirmed according to the arrangements for automotive doors number in the circuit, and the circuit in the accompanying drawing 1 is an example with 2 door contacts.

The specific embodiment

Implement according to the circuit working schematic diagram of car door controller alarm device shown in the accompanying drawing 1 and the components and parts technical requirements of description of drawings and the following stated, can realize the utility model.

The selection of components and parts and technical parameter

The model of silicon transistor VT1 is selected BC557 for use, or selects 2SC9013 type silicon transistor for use;

D1～D3 is a silicon rectifier diode, can select models such as IN4001 for use;

Resistance all uses RTX-1/4W shaped metal film resistance, and the resistance of resistance R 1 is 100k Ω, and the resistance of resistance R 2 is 1.0M Ω, and the resistance of resistance R 3 is 10k Ω;

The model of chemical capacitor C1 is the CD11-25V type, and its capacity is 100 μ F;

VS is an one-way SCR, and model can be selected models such as BT169 for use;

AN1～AN2 is a door contact, selects the one pole button switch for use, and required number Control of Automobile car door number is as required confirmed; SW is the key-type automobile power supply switch;

YA is the piezoelectric buzzer of high loudness, and operating voltage is 9～15V.

The making of circuit and adjustment thereof

In the circuit of car door controller alarm device; As long as the electronic devices and components performance of selecting for use is intact; And the components and parts annexation in the accompanying drawing is welded to specifications, the physical connection line of circuit and welding quality through scrutiny correct after, but circuit need not debugged just normal operation basically;

If the car owner feels that the delay time of circuit is not enough, can suitably increase the capacity of chemical capacitor C1 or the resistance of increase resistance R 2.If the sound during sensation piezoelectric buzzer YA work is big inadequately, can suitably reduce the resistance of resistance R 3.Require the hidden installation of door contact AN1～AN2, and require the reliable in action of door contact.

Claims

1. car door controller alarm device, it is made up of 12V direct supply, door contact and potential balance circuit, time delay circuit, unbalance signal amplification circuit, one-way SCR control and trigger circuit, and its characteristic comprises:

Door contact and potential balance circuit are made up of door contact AN1～AN2 and silicon diode D1, silicon diode D2 and resistance R 1; The positive pole of silicon diode D1 connects the end of door contact AN2; Link to each other with the anodal VCC of 12V direct supply behind the other end serial connection door contact AN1 of door contact AN2; The negative pole of silicon diode D1 connects the negative pole of silicon diode D2 and an end of resistance R 1, the other end connection circuit ground GND of resistance R 1;

Time delay circuit is made up of chemical capacitor C1 and resistance R 2, the emitter of a termination silicon transistor VT1 of the positive pole of chemical capacitor C1 and resistance R 2, the other end connection circuit ground GND of the negative pole of chemical capacitor C1 and resistance R 2;

The base stage of silicon transistor VT1 connects the positive pole of silicon diode D2 in the unbalance signal amplification circuit, and the collecting electrode of silicon transistor VT1 meets the anodal VCC of 12V direct supply, and the emitter of silicon transistor VT1 connects the positive pole of silicon diode D3;

Join with the negative pole of silicon diode D3 behind the control utmost point series resistor R3 of one-way SCR VS in one-way SCR control and the trigger circuit; The anode of one-way SCR VS meets the anodal VCC of 12V direct supply, and the negative electrode of one-way SCR VS is connected in series connection circuit ground GND behind the high loudness piezoelectric buzzer YA.