CN201882042U

CN201882042U - Burglar alarm for vehicle

Info

Publication number: CN201882042U
Application number: CN2010205954066U
Authority: CN
Inventors: 孙帅
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-10-28
Filing date: 2010-10-28
Publication date: 2011-06-29
Anticipated expiration: 2020-10-28

Abstract

The utility model discloses a burglar alarm for a vehicle, comprising a vehicle-mounted power supply and an acousto-optic alarm device. The burglar alarm for the vehicle is characterized in that the vehicle-mounted power supply is electrically connected with a vehicle-mounted load and a transfer contact and a normally open contact of a relay so as to form a work loop, the acousto-optic alarm device is electrically connected with the alarm power supply and the transfer contact and a normally closed contact of the relay so as to form an alarm loop, the work loop is conducted with one loop in the alarm loop, namely when the work loop is conducted, the alarm loop is switched off and does not work, or the work loop is switched off, and the alarm loop is conducted. The burglar alarm is simple in structure and convenient in installation, and is compatible and complementary with the prior art.

Description

A kind of vehicle anti-theft annunciator

Technical field

The utility model belongs to the electric equipment field, particularly a kind of vehicle anti-theft annunciator.

Background technology

At present, the vehicle anti-theft annunciator all is directly to use vehicle power, when automobile suffers that sled is stolen, because the vibration or the mal sound send alerting signal, because of annunciator does not have independent current source, in case lead is cut off by the lawless person or vehicle power is stolen, when electric current can not cause the loop, warning device just performs practically no function, and can not bring into play the warning effect.

Summary of the invention

Technical assignment of the present utility model is to provide a kind of vehicle anti-theft annunciator at above the deficiencies in the prior art.

The technical scheme that its technical matters that solves the utility model adopts is: a kind of vehicle anti-theft annunciator, comprise vehicle power and acoustic-optic alarm, wherein, the changeover contact of described vehicle power and vehicle-mounted load and relay, open contact is electrically connected, formation work loop, the changeover contact of described acoustic-optic alarm and warning power supply and relay, normally closed contact is electrically connected, constitute alarm loop, have only a loop conducting in described work loop and the described alarm loop, alarm loop disconnects the loop disconnection of not working or work when promptly working the loop conducting, the alarm loop conducting.

The beneficial effects of the utility model are: stolen at the storage battery of automobile, motor bike or car light, electronic components, the work loop disconnects, existing annunciator is because of under the out-of-action situation of non-transformer, the utility model sends the sound and light alarm signal, remedy the deficiency of existing annunciator, ensured the safety of vehicle.

Description of drawings

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

The specific embodiment

Below in conjunction with Figure of description the utility model is done following detailed explanation.

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

Claims

1. vehicle anti-theft annunciator, comprise vehicle power and acoustic-optic alarm, it is characterized in that: described vehicle power is electrically connected with changeover contact, the open contact of vehicle-mounted load and relay, formation work loop, described acoustic-optic alarm is electrically connected with changeover contact, the normally closed contact of warning power supply and relay, constitute alarm loop, have only a loop conducting in described work loop and the described alarm loop, alarm loop disconnects do not work or work loop disconnection, alarm loop conducting when promptly working the loop conducting.