CN2309253Y - Theft-proof device for automotive vehicles - Google Patents

Abstract

The utility model relates to a theft-proof device for automotive vehicles, comprising a microcrystalline sensor, an antenna, a decoding controller and a solid state relay; the microcrystalline sensor, the antenna, the decoding controller and the solid state relay are orderly connected; the solid state relay is connected with an ignitor for automotive vehicles., wherein, the microcrystalline sensor is arranged in a key head for the automotive vehicles, the antenna surrounds the periphery of a key hole of a locking head; the decoding controller and the igniter are integrally arranged in a control device for ignition. When the key is proper distance from the locking head, the code pulse emitted by the microcrystal sensor can be received through the antenna and the decoding controller; the code pulse can be compared with the set-in code, assuring that the code pulse is whether the same with the set-in code or not. When the codes are same, the igniter for the automotive vehicles can be started; inversely, the break of the igniter can be hold.

Description

Anti-theft device for motor vehicle

The utility model relates to a kind of anti-theft device for motor vehicle, particularly a kind of self-propelled vehicle firing unit is debated the knowledge anti-joyride device in conjunction with crystallite, establish the crystallite inductor in key bit, and establish antenna on every side in the tapered end key hole, and one is established decode controller and firing unit on ignition control device, and the mat antenna receives the password impulse singla of crystallite inductor, and by just making the firing unit action after the decode controller decipher comparison correctly, otherwise the holding point firearm opens circuit.

Commonly using the self-propelled vehicle firing unit is that the electric switch of directly being controlled by motor vehicle lock starts, in case motor vehicle lock is by pirate of the open, self-propelled vehicle can start and be stolen, thereby existing motor vehicle antitheft system all focuses on the protection motor vehicle lock, or establish a distance type warning system against theft, but the former mode burglar can keep away lockset and directly with junction style anti-theft system be lost efficacy, and then initial igniter and steal locomotive; As for distance type warning system against theft (can referring to Fig. 4), on the one hand easily wrong report (stop and self-propelled vehicle is shifted slightly) as other people, on the other hand, remote controller emission during password still very easily in by at pirate closely (in fact with the copy device, the existing on the market remote controller listing that can copy), dangerous all the better!

The purpose of this utility model is to provide a kind of self-propelled vehicle firing unit to debate the anti-joyride device of knowledge in conjunction with crystallite.

The utility model is the crystallite inductor in the mat key bit, can and compare the pulse of The built-in password through an antenna and a decode controller sensing around the key hole, if conform to and then make solid-state relay conducting between point of ignition control loop and decode controller and initial igniter, and contained password tool uniqueness in the microwafer, so when no password or password not to the time initial igniter and reach anti-antitheft effect not, more be located in the ignition control device, thereby can avoid by the pirate password or by with junction style pirate of the open firing unit because of the non-distance type of password transmission and decode controller.

Motor-driven anti-joyride device of the present utility model is characterized in that, comprising: bonded assembly crystallite inductor, antenna, decode controller and solid-state relay successively; Solid-state relay is connected to the self-propelled vehicle firing unit;

Described crystallite inductor is located in the self-propelled vehicle key bit, antenna loop is around in around the key hole, decode controller and firing unit one are located in the ignition control device, decode controller can receive and compare the password of crystallite inductor through antenna, whether conform to the built-in password of decode controller, and then the firing unit of unlatching self-propelled vehicle, otherwise firing unit is opened circuit.

Details are as follows to characteristics of the present utility model to reach accompanying drawing in conjunction with the embodiments:

Description of drawings:

Fig. 1: the system block diagrams of the utility model embodiment.

Fig. 2: the schematic perspective view of the utility model embodiment.

Fig. 3: the circuit diagram of the firing unit of the utility model embodiment (containing decode controller).

Fig. 4: the circuit diagram of commonly using firing unit.

As shown in Figure 1, 2, diagram of block and schematic perspective view for the utility model embodiment, it comprises crystallite inductor 11, antenna 21, decode controller 31 and firing unit 32, wherein crystallite inductor 11 is located in the key 1, antenna 21 then is surrounded on around the key hole 22 of tapered end 2, and decode controller 31 is located in the ignition control device 3 with 32 one of firing unit (CDI); In addition, the built-in password of crystallite inductor 11 is near antenna 21, the side be received and by built-in password with pulse mode transmission give decode controller 31 go decoding and with decode controller 31 built-in passwords comparisons, and storage battery 4 is used for power supply and gives decode controller 31, and whether decode controller 31 moves with controlling point firearm 32;

The circuit diagram of ignition control device 3 parts of the present utility model then as shown in Figure 3, Fig. 4 is then for commonly using the circuit diagram of ignition control device; Comparison diagram 3 and Fig. 4 can find that the utility model is to establish solid-state relay (SSR) 6 between the pulse input end of the decode controller 31 of ignition control device 3 and point of ignition control loop 7 and alternating current generator (ACG) 9, and decode controller 31 is powered by storage battery 4, and is connected to antenna 21; Wherein solid-state relay (SSR) 6 normalities keep opening circuit, have only when crystallite inductor 11 through the password pulse of antenna 21 transmission and the built-in password comparison of decode controller 3, if when conforming to, then can make its conducting, point of ignition control loop 7 is moved;

When the utility model is implemented, shown in Fig. 2 to 3, crystallite inductor 11 in key 1 head is suitable apart from (in 60mm) apart from antenna 21, can in the utmost point short time (as 0.1 second), receive and decode controller 31 its password pulses of decoding through antenna 21, and comparison is stored in the password in decode controller 31 memory devices, if comparison is correct, then make solid-state relay (SSR) 6 conductings, after the conducting then the pulse of alternating current generator (ACG) 9 input can pass through point of ignition control loop 7, and trigger silicon control (SCR) 8 and make capacitive strike output and ignition plug is lighted a fire; Otherwise, promptly can't make solid-state relay (SSR) 6 conductings as no password or password mistake, therefore, even someone destroys lockset, also can't make solid-state relay (SSR) 6 conductings and initial igniter (CDI) 32 with junction style, and because of non-distance type, also can't the pirate password.

The utlity model has following effect:

Because anti-theft device of the present utility model is provided with crystallite inductor and decode controller, utilize to be stored in decoding Cipher control in the controller storage, like this, even motor vehicle lock by pirate of the open, igniter also can't move, Thereby motor vehicle can't start, and motor vehicle still can not be stolen, solved in the past that anti-theft device for motor vehicle lost efficacy or Remote controller is by the problem of pirate.

Claims (1)

1, a kind of anti-theft device for motor vehicle is characterized in that, comprising: bonded assembly crystallite inductor, antenna, decode controller and solid-state relay successively; Solid-state relay is connected to the self-propelled vehicle firing unit;

Described crystallite inductor is located in the self-propelled vehicle key bit, antenna loop is around in around the key hole, decode controller and firing unit one are located in the ignition control device, decode controller can receive and compare the password of crystallite inductor through antenna, whether conform to the built-in password of decode controller, and then the firing unit of unlatching self-propelled vehicle, otherwise firing unit is opened circuit.

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