CN2842590Y - A kind of vehicle safety burglar alarm - Google Patents

Abstract

The utility model discloses a kind of at automobile, big minibus or motorcycle power supply or automobile-used electricity consumption facility (as car light etc.) is stolen or electric wire is cut off, when not working, the work loop can send the structure of a kind of vehicle safety burglar alarm of alerting signal, be characterized in that alarm has independent current source and is provided with relay, when existing burglar alarm inefficacy can not be worked, report to the police, ensured the safety of vehicle.The utility model is simple in structure, and is easy for installation, with prior art compatibility, complementation.

Description

A kind of vehicle safety burglar alarm

Technical field

The utility model relates to a kind of vehicle safety alarm device, is specifically related to can send when the stolen or breaking out of fire hidden danger of electrical equipment facility on a kind of vehicle causes circuit breaker the vehicle safety alarm of sound and light alarm.

Background technology

Existing vehicle anti-theft alarm all directly uses vehicle power, when car or motorcycle suffer that sled is stolen or moved arbitrarily by the people, because the vibration or the undesired sound send alerting signal.Because warning device does not have independent current source, in case lead is cut off by the lawless person, or electrical equipment facility such as car light is stolen on the vehicle power, car, and when electric current can not cause the loop, warning device just performed practically no function, and can not bring into play the warning effect.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of independent current source is arranged, under static state the electrical equipment facility is stolen on the vehicle, or cause open circuit conditions to issue out the vehicle safety burglar alarm of alarm signal because of other reasonses such as fire trouble.

For achieving the above object, the technical scheme that adopts is: a kind of vehicle safety burglar alarm comprises that vehicle power and acoustic-optic alarm, its characteristics are: transfer contact, the normally opened contact of described vehicle power and vehicle-mounted load and the relay work loop that is electrically connected to form; Acoustic-optic alarm is electrically connected with transfer contact, the normally closed contact of warning power supply and relay, constitutes alarm circuit; Have only a loop conducting in work loop and the alarm circuit, alarm circuit disconnects and not working when promptly working the loop conducting, or the work loop disconnects, the alarm circuit conducting is reported to the police.

Under normal circumstances, connect vehicle power and switch on, produce magnetic field suction after the electromagnet winding energising owing to relay inside, make the interior normally opened contact closure of relay and keep self-locking, not conducting of alarm circuit this moment, not activating alarm; In case factors such as vehicle power lost efficacy or vehicle-mounted load (as car light) is stolen, electric wire is cut off cause the work loop to disconnect, the relay internal magnetic field disappears, and then normally opened contact disconnects, the normally closed contact closure, and alarm circuit work is reported to the police.

The beneficial effects of the utility model are: stolen at the storage battery of automobile, motorcycle or car light, electronic components, the work loop disconnects, existing alarm is because of under the inoperable situation of non-transformer, the utility model sends the sound and light alarm signal, remedy the deficiency of existing alarm, ensured the safety of vehicle.The utility model is simple in structure, and is easy for installation, with prior art compatibility, complementation.

Description of drawings

Fig. 1 is an electrical schematic diagram of the present utility model

Among the figure: 1. relay; 2. normally closed contact; 3. normally opened contact; 4. vehicle-mounted load; 5. work loop; 6. vehicle power; 7 warning power supplys; 8. alarm circuit; 9. acoustic-optic alarm; 10. transfer contact.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

A kind of vehicle safety burglar alarm comprises that vehicle power 6 and acoustic-optic alarm 9, its characteristics are: transfer contact 10, the normally opened contact 3 of vehicle power 6 and vehicle-mounted load 4 and the relay 1 work loop 5 that is electrically connected to form; Transfer contact 10, the normally closed contact 2 of acoustic-optic alarm 9 and warning power supply 7 and relay 1 alarm circuit 8 that is electrically connected to form; Have only a loop conducting in work loop 5 and the alarm circuit 8, alarm circuit 8 disconnects and not working when promptly working loop 5 conductings, or work loop 5 disconnects, alarm circuit 8 conductings are reported to the police.

Claims (1)

1. vehicle safety burglar alarm, comprise vehicle power (6), acoustic-optic alarm (9), it is characterized in that: described vehicle power (6) is electrically connected with transfer contact (10), the normally opened contact (3) of vehicle-mounted load (4) and relay (1), constitutes work loop (5); Described acoustic-optic alarm (9) is electrically connected with transfer contact (10), the normally closed contact (2) of warning power supply (7) and relay (1), constitutes alarm circuit (8); Have only a loop conducting in described work loop (5) and the described alarm circuit (8), alarm circuit (8) disconnects and not working when promptly working loop (5) conducting, or work loop (5) disconnects, alarm circuit (8) conducting is reported to the police.

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