CN2207970Y

CN2207970Y - Anti-theft means for automotive vehicles

Info

Publication number: CN2207970Y
Application number: CN94244256U
Authority: CN
Inventors: 董建辉
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-01
Filing date: 1994-11-01
Publication date: 1995-09-20
Anticipated expiration: 2004-11-01

Abstract

The utility model provides an anti-theft device for automotive vehicles, which comprises an ignition switch, a theftproof control circuit and a controlled object. The utility model is characterized in that a specific electronic control element is arranged in an ignition switch to realize the control of the switch. When starting the switch, one path switches on an original vehicle circuit, and the other path switches on the electronic element. The electronic element is connected with the input end of the control circuit through a switch K3; the output end of the control circuit is connected with the controlled object; the controlled object can be a power supply main switch or an ignition coil or a fuel pump. No matter which controlled object is adopted, the thief can not start an engine by the conventional mode of disorderly picking wire so as to effectively obtain the purpose of preventing theft. The device has the advantages of simple structure, convenient operation, good theftproof effect, etc.

Description

Anti-theft means for automotive vehicles

The utility model relates to the antitheft control of power actuated vehicle.

At present, the anti-theft device for vehicle of the different control forms of various employing of Chu Xianing on the market, major part is cipher control and switch control two big classes.Anti-joyride device as shown in Figure 1 is to adopt the cipher control mode, and wherein block diagram 1 is an infrared emittance, and block diagram 2 is the key control panel, and block diagram 3 is the vehicle body vibration switch.Principle of work is: when the driver inputed corresponding password by correct way, signal via controller 4 identification backs promoted master cock K2 switch on.In this simultaneously, when the driver is turned round with the original key fire an engine, connect ignition lock simultaneously, turn round through high-tension coil 5 fire an engines.Hence one can see that, and the firing circuit of this anti-joyride device has only been gone here and there a master cock K2 than original automobile igniting circuit more, and when being unkitted this anti-joyride device, the robber need only unload ignition lock, but with lead with the K1 shorted on both ends just fire an engine that gets up.And anti-joyride device shown in Figure 1, the robber only needs the outer direct short circuit of lead A, B of controller is drawn at the K2 two ends, or draw a live wire at the engine room annex equally can fire an engine and reach the purpose of robber's car to high-tension coil.In sum, this type of anti-joyride device is the feasible antitheft effectively purpose of out of reach not only, but also exist trouble, complicated operation, the high deficiency of rate of false alarm is installed.

The purpose of this utility model provides a kind of simple in structure, and is easy to operate, the startup circuit of former car and two operations of opening of Car Burglar Alarm can be united two into one, and operates the anti-theft device for motor vehicles that just can realize vehicle launch and antitheft two big functions synchronously.

Technical solution of the present utility model is: it comprises ignition lock, compositions such as control circuit and controlled substance.Ignition lock adopts coupled twin switch (2 * 3) or (2 * 4), the control of a specific electronic component realization to Car Burglar Alarm is set in switch, when starting switch, one the tunnel connects this electronic component, the other end is connected former car circuit, this electronic component one end ground connection, the base stage of other end aerotron T3 in the K3 connection control circuit, the mouth of control circuit connects controlled substance.

The utility model has the advantages that: it need not change former fare road, do not need outside connected switch, on the basis of former circuit, only setting up a lead in ignition lock just can connect anti-theft controller, realize to start circuit and carry out synchronously with antitheft control, have simple in structurely, it is easy to install, easy to operate, good anti-theft effect.Can prevent effectively that the robber from adopting random contact live wire, short circuit Car Burglar Alarm switch pig-tail wire, means such as short circuit starter and destruction Car Burglar Alarm are stolen the purpose of car.

Below in conjunction with accompanying drawing the utility model is illustrated:

Fig. 1 is prior art control principle figure;

Fig. 2 is control circuit figure of the present utility model;

Fig. 3 is embodiment 1 scheme drawing of the present utility model;

Fig. 4 is embodiment 2 scheme drawings of the present utility model;

Fig. 5 is embodiment 3 scheme drawings of the present utility model.

As shown in Figure 2, the current foldback circuit that this controller 3 is made up of aerotron T1, T2, detection resistance R 0, its effect is when a point current potential ground connection, can cut off the electricity supply rapidly, makes the relay J 1 can not adhesive.Controlled substance is not worked.Form electronic switching circuit by T3 and relay J 1, when K switch 3 was connected, a point current potential and particular electronic component 2 were joined, so switch transistor T 3 conductings, storage battery E connects controlled substance 4 through relay contact J1c, makes controlled substance 4 be in slave mode.Another effect of aerotron T3 is when a point power connection is anodal, because T3 is in off condition, so no matter a point power connection negative or positive electrode all can not make circuit working, controlled substance no current and not working.

As shown in Figure 3: comprise that ignition lock 1, electronic component 2, controller 3 and controlled substance (battery isolator control 4) constitute.Wherein the particular electronic component 2 in the ignition lock is a biasing resistor, be antitheft control action, its end connects the intermediate point of K switch 3, other end ground terminal, the mouth of K switch 3 is connected to the base stage of controller T3 through lead, and the mouth of controller connects controlled substance (battery isolator control) 4.When the driver turns off key, the full car general supply of turned off in synchronization, simultaneously since in the ignition lock ad hoc resistance unit 2 bias voltage of its switch transistor T 3 is controlled, and make the robber adopt which kind of mode all can't fire an engine.

As shown in Figure 4: the controlled substance of this Car Burglar Alarm is a high-tension coil, on the basis on former fare road, utilize former fare road and silver contact 5, only need to increase a control line anti-theft controller 3 is connected with ignition lock 1 and high-tension coil 4 respectively, thereby make robber's impassabitity high-tension coil fire an engine.

As shown in Figure 5: the controlled substance of this Car Burglar Alarm is an automobile fuel pump.Controller 3 is connected with electric fuel punp 4, and both are designed to an integral body, utilizes former car power lead, only increases the end of a control line to dynamo-electric ignition lock K3, makes the circuit control that can finish car load.Make the robber under the situation that does not have the specific control element of ignition lock, can't fuel-oil priming pump work.Cut off the robber effectively and reached the possibility of stealing car by the fuel charger fire an engine.

Claims

1, a kind of anti-theft device for motor vehicles, comprise ignition lock (1), theft-proofing control circuit (3) and controlled substance (4) are formed, it is characterized in that: said ignition lock (1) is coupled twin switch (2 * 3) or (2 * 4), be provided with specific electronic component (2) in the ignition lock (1), when starting switch K1, one the tunnel connects former car circuit, electronic component (2) is connected on another road, this electronic component one end ground connection, the other end connects the base stage of aerotron T3 in the control circuit (3) through K3, and the mouth of controller (3) connects controlled substance (4).

2, anti-theft device for vehicle according to claim 1 is characterized in that: said control circuit (3) is by aerotron T1, T2, resistance R.The electronic switching circuit of forming is formed, and by this control circuit the unlike signal of holding from K3 is controlled, and is connected to controlled substance (4) through relay J 1c.

3, anti-theft device for vehicle according to claim 1 and 2 is characterized in that: controlled substance (4) is a battery isolator control.

4, anti-theft device for vehicle according to claim 1 is characterized in that: controlled substance (4) is a high-tension coil.

5, anti-theft device for vehicle according to claim 1 is characterized in that: controlled substance (4) is a fuel charger.