CN201086696Y

CN201086696Y - Anti-theft oil-locking device for vehicle

Info

Publication number: CN201086696Y
Application number: CNU2007201213212U
Authority: CN
Inventors: 陈煜�; 夏含信
Original assignee: ChinaGPS Co Ltd Shenzhen
Current assignee: ChinaGPS Co Ltd Shenzhen
Priority date: 2007-07-06
Filing date: 2007-07-06
Publication date: 2008-07-16
Anticipated expiration: 2017-07-06

Abstract

The utility model relates to a vehicle antitheft fuel lock device that comprises a relay J to control ON/OFF of fuel circuits and a relay driving circuit connected with the relay; the driving circuit is also connected with a switch control device arranged on the driving circuit valid/invalid status, a trigger circuit to start the driving circuit in case of illegal ignition, and a sustaining circuit to maintain the driving voltage during the illegal ignition, wherein the movable contact K1 on the relay is connected with an ACC circuit; the NC contact K2 connects with the oil pump output and the trigger circuit; the NO contact K3 is linked to the sustaining circuit. The relay J is connected with an afterflow protection circuit. The utility model of the vehicle fuel antitheft device has the performances of low power consumption, preventing dismantling and being safe and reliable.

Description

Anti-theft lock for vehicle oil device

Technical field

The utility model relates to automobile, more particularly, relates to a kind of anti-theft lock for vehicle oil device.

Background technology

Now a lot of automobiles all are equipped with burglar alarm, and some also is equipped with GPS location burglar alarm, but these technology just crack in stolen car group, make GPS locate the antitheft meaning that lost.The producer of many production Car Burglar Alarms, the system that has also developed many kind lock oil or locked motor, its effect is exactly to make joyriding can't start automobile immediately, thereby prolongs the crime time of joyriding, for public security officer's track and localization is got the time.But present a lot of lock oil system all is to adopt initiatively lock oil, and promptly host computer control is locked oil system oil-break immediately, and circuit is simple, but reliability is lower, does not possess the tamper function.Also have some anti-theft column lock oil systems to possess the tamper function, but the oily detatching-proof system of this lock just disconnect normally closed relay, locked oil circuit after setting up defences.Because the relay power consumption is bigger, if vehicle does not start often, working current may exhaust the electric weight of storage battery, and automobile can't be started.

The utility model content

The technical problems to be solved in the utility model is, at the big defective of above-mentioned anti-theft column lock oil device repeat circuit consumption of current of prior art, provides the anti-theft lock for vehicle oil device that a kind of power consumption is little and have the tamper function.

The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of anti-theft lock for vehicle oil device, comprise the relay J that is used for the control oil channel break-make and the relay drive circuit that links to each other with described relay, described driving circuit also be connected be used to be provided with described driving circuit effectively/switch controlling device of disarmed state, start the trigger circuit of described driving circuit when being used to meet with illegal igniting and be used at the holding circuit of illegally keeping driving voltage between burn period; Wherein, the moving contact K1 of described relay is connected in that ACC circuit, normally closed contact K2 link to each other with trigger circuit with oil pump output, open contact K3 links to each other with holding circuit.

In anti-theft lock for vehicle oil device described in the utility model, described relay J is connected with the afterflow protective circuit.

In anti-theft lock for vehicle oil device described in the utility model, described relay J is an electromagnetic relay, and described relay drive circuit comprises NPN transistor Q1 and PNP transistor Q2; Wherein, the collecting electrode of described NPN transistor Q1 links to each other with the base stage of PNP transistor Q2 by the 4th resistance R 4, and is connected in the emitter of PNP transistor Q2 by the coil of the 5th resistance R 5 and relay J; The collecting electrode of PNP transistor Q2 is by the 6th resistance R 6 ground connection; The base stage of NPN transistor Q1 is connected to described trigger circuit, holding circuit and ON-OFF control circuit; The grounded emitter of NPN transistor Q1 is parallel with first resistance R 1 and capacitor C 1 between base stage and the emitter; Described the 5th resistance R 5 also links to each other with the ACC circuit by the second diode D2 with the point of connection of the coil of relay J, and wherein the positive pole of the second diode D2 links to each other with the ACC circuit.

In anti-theft lock for vehicle described in the utility model oil device, described switch controlling device comprises photoelectrical coupler U, and the one mouth is connected in the base stage of NPN transistor Q1, another output head grounding by the 3rd resistance R 3.

In anti-theft lock for vehicle oil device described in the utility model; described afterflow protective circuit comprises direct supply and the 3rd diode D3 of 12V; wherein, the positive pole of the 3rd diode D3 connects direct supply, and negative pole links to each other with the point of connection of the coil of relay J with the 5th resistance R 5.

In anti-theft lock for vehicle oil device described in the utility model, described trigger circuit comprise second resistance R 2, and described holding circuit comprises the 7th resistance R 7; Wherein, the normally closed contact K2 of second resistance R, 2 one relay termination J, the other end is connected in the base stage of NPN transistor Q1; The open contact K3 of the 7th resistance R 7 one relay termination J, the other end is connected in the base stage of NPN transistor Q1.

Implement anti-theft lock for vehicle of the present utility model oil device, have following beneficial effect: under the state of setting up defences because only when illegal ignition trigger, thus relay just can switch on and disconnect oil circuit, and circuit is in off position at ordinary times, power consumption is extremely low; In addition, because the effect of holding circuit, relay can not send sound by perseveration between illegal burn period, and more hidden being difficult for found by joyriding, can prevent effectively that joyriding from illegally dismantling.Thereby anti-theft lock for vehicle of the present utility model oil device has little power consumption, safe and reliable performance.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:

Fig. 1 is the functional block diagram of the anti-theft lock for vehicle oil device of the utility model design;

Fig. 2 is the anti-theft lock for vehicle oil manipulated or operated apparatus according to the utility model one embodiment.

The specific embodiment

Figure 1 shows that the functional block diagram of anti-theft lock for vehicle oil device of the present utility model.As shown in the figure, anti-theft lock for vehicle oil device of the present utility model comprises switch controlling device 3, trigger circuit 4, holding circuit 5 and the afterflow protective circuit 6 of relay J, relay drive circuit 2, relay drive circuit.Wherein, switch controlling device 3 is used for effective (enable) and invalid (unable) of control Driver Circuit 2, makes that under the state of setting up defences, driving circuit 2 is effective; And under the state of withdrawing a garrison, driving circuit 2 is invalid.That is to say that under the state of withdrawing a garrison, relay drive circuit is inoperative, oil circuit is unimpeded during ignition trigger.The moving contact K1 of relay J is connected in that ACC circuit, normally closed contact K2 link to each other with trigger circuit 4 with oil pump output, open contact K3 links to each other with holding circuit 5.Trigger circuit 4 are used for starting driving circuit 2 when meeting with illegal igniting, so that the moving contact K1 of relay J and normally closed contact K2 disconnect, are closed into open contact K3.Holding circuit 5 is used for keeping driving voltage between illegal burn period, makes relay J keep disconnecting, and sends sound to avoid relay owing to closure/disconnection repeatedly.

Anti-theft column lock of the present utility model oil device only when illegal starting ignition, just can disconnect oil circuit.Circuit is in off position at ordinary times, thereby power consumption is extremely low.In addition, because the effect of holding circuit, relay can not send sound by perseveration between illegal burn period, and is more hidden, be difficult for being found by joyriding, thus can tamper.

Fig. 2 is according to the anti-theft lock for vehicle oil manipulated or operated apparatus of the utility model one embodiment.As shown in the figure, relay J is an electromagnetic relay; Relay drive circuit 2 comprises NPN transistor Q1 and PNP transistor Q2.Wherein, the collecting electrode of NPN transistor Q1 links to each other with the base stage of PNP transistor Q2 by the 4th resistance R 4, and is connected in the emitter of PNP transistor Q2 by the coil of the 5th resistance R 5 and relay J; The collecting electrode of PNP transistor Q2 is by the 6th resistance R 6 ground connection; The base stage of NPN transistor Q1 is connected to described trigger circuit 4, holding circuit 4 and ON-OFF control circuit 3; The grounded emitter of NPN transistor Q1 is parallel with first resistance R 1 and capacitor C 1 between base stage and the emitter; Described the 5th resistance R 5 also links to each other with the ACC circuit by the second diode D2 with the point of connection of the coil of relay J, and wherein the positive pole of the second diode D2 links to each other with the ACC circuit.Switch controlling device 3 comprises photoelectrical coupler U, and the one mouth is connected in the base stage of NPN transistor Q1, another output head grounding by the 3rd resistance R 3.Afterflow protective circuit 6 comprises direct supply and the 3rd diode D3 of 12V, and wherein, the positive pole of the 3rd diode D3 connects direct supply, and negative pole links to each other with the point of connection of the coil of relay J with the 5th resistance R 5.Trigger circuit (4) comprise second resistance R 2, and holding circuit (5) comprises the 7th resistance R 7; Wherein, the normally closed contact K2 of second resistance R, 2 one relay termination J, the other end is connected in the base stage of NPN transistor Q1; The open contact K3 of the 7th resistance R 7 one relay termination J, the other end is connected in the base stage of NPN transistor Q1.

The principle of work of circuit shown in Figure 2 is: after setting up defences, the output stage of photoelectrical coupler U will disconnect and being connected of ground.After igniting takes place, the ACC electric current will be by normally closed contact K2, make NPN transistor Q1 conducting, PNP transistor Q2 is also with conducting, relay work then, at this moment the normally closed contact K2 of the moving contact K1 of the relay that links to each other with the ACC circuit and relay disconnects, with open contact K3 closure, this moment, ACC electric current process R7 feedback resistance fed back to the base stage of NPN transistor Q1, for NPN transistor Q1 continues to provide the conducting electric current.Relay will disconnect always like this.

That is to say that after automobile was set up defences, perhaps when remote host met with illegal the dismounting, the remote controller main frame was with the ground circuit of releasing of parting system, if vehicle ignition, spark current will be fed on the relay drive circuit so, drive relay work, disconnect oil circuit.When the car owner withdraw from set up defences after, main frame is connected the ground circuit of releasing, after the igniting, spark current will flow to ground by leadage circuit, can't drive relay drive circuit, relay is closure still.Do not adopt R7 in the ifs circuit, relay is after disconnection so, and NPN transistor Q1 loses the conducting electric current, and relay will be closed again, can repeatedly disconnect with that and closure.Such cycle event, relay will send drone sound, cause the attention of joyriding, thereby find the hidden place of the oily normally closed relay of lock.The 3rd diode D3 provides the afterflow protection for the conducting of relay, can start by pulsation-free to guarantee relay.

As is known to the person skilled in the art, except that embodiment shown in Figure 2, in the anti-theft lock for vehicle oil device of the present utility model, relay J can also adopt the relay of other type, as temperature-sensitive dry reed relay, solid-state relay etc.; Correspondingly, relay drive circuit 2, switch controlling device 3, trigger circuit 4 and holding circuit 5 can be realized by alternate manner, as adopting state machine, field programmable gate circuit, IC chip and peripheral circuit thereof.

In sum, anti-theft lock for vehicle oil device of the present utility model provides the function of lock oil and tamper, and is hidden as long as the oily detatching-proof system of lock is installed, and just can delay the crime time of joyriding, for the monitoring and control centre location gains time.Overcome and initiatively locked defectives such as oil and oil-break overlong time in the prior art, provide a kind of automotive safety, failure-free lock oil and detatching-proof system.

Claims

1. anti-theft lock for vehicle oil device, comprise relay J that is used for the control oil channel break-make and the relay drive circuit (2) that links to each other with described relay, it is characterized in that, described driving circuit (2) also be connected be used to be provided with described driving circuit (2) effectively/switch controlling device (3) of disarmed state, start the trigger circuit (4) of described driving circuit (2) when being used to meet with illegal igniting and be used between illegal burn period, keeping the holding circuit (5) of driving voltage; Wherein, the moving contact K1 of described relay is connected in that ACC circuit, normally closed contact K2 link to each other with trigger circuit (4) with oil pump output, open contact K3 links to each other with holding circuit (5).

2. anti-theft lock for vehicle oil device according to claim 1 is characterized in that described relay J is connected with afterflow protective circuit (6).

3. anti-theft lock for vehicle oil device according to claim 2 is characterized in that described relay J is an electromagnetic relay, and described relay drive circuit (2) comprises NPN transistor Q1 and PNP transistor Q2; Wherein, the collecting electrode of described NPN transistor Q1 links to each other with the base stage of PNP transistor Q2 by the 4th resistance R 4, and is connected in the emitter of PNP transistor Q2 by the coil of the 5th resistance R 5 and relay J; The collecting electrode of PNP transistor Q2 is by the 6th resistance R 6 ground connection; The base stage of NPN transistor Q1 is connected to described trigger circuit (4), holding circuit (4) and ON-OFF control circuit (3); The grounded emitter of NPN transistor Q1 is parallel with first resistance R 1 and capacitor C 1 between base stage and the emitter; Described the 5th resistance R 5 also links to each other with the ACC circuit by the second diode D2 with the point of connection of the coil of relay J, and wherein the positive pole of the second diode D2 links to each other with the ACC circuit.

4. anti-theft lock for vehicle according to claim 3 oil device is characterized in that described switch controlling device (3) comprises photoelectrical coupler U, and the one mouth is connected in the base stage of NPN transistor Q1, another output head grounding by the 3rd resistance R 3.

5. according to claim 3 or 4 described anti-theft lock for vehicle oil devices; it is characterized in that; described afterflow protective circuit (6) comprises direct supply and the 3rd diode D3 of 12V; wherein; the positive pole of the 3rd diode D3 connects direct supply, and negative pole links to each other with the point of connection of the coil of relay J with the 5th resistance R 5.

6. according to claim 3 or 4 described anti-theft lock for vehicle oil devices, it is characterized in that described trigger circuit (4) comprise second resistance R 2, described holding circuit (5) comprises the 7th resistance R 7; Wherein, the normally closed contact K2 of second resistance R, 2 one relay termination J, the other end is connected in the base stage of NPN transistor Q1; The open contact K3 of the 7th resistance R 7 one relay termination J, the other end is connected in the base stage of NPN transistor Q1.