CN201345145Y - Battery anti-theft device - Google Patents

Abstract

The utility model discloses a battery anti-theft device, which is characterized by being provided with a power switch, a battery, an alarm control relay, an alarm power supply, an alarm, a loudspeaker, and an alarm circuit switch. The power switch and the electrical appliance are connected in series between the two poles of the battery, the alarm control relay is connected in parallel between the two poles of the battery, the normally closed contacts of the alarm control relay, the alarm switch, and the alarm are connected in series between the two poles of the alarm power supply, and the loudspeaker is connected in parallel at both ends of the alarm. When the alarm circuit is connected, the loudspeaker sounds. When the battery is stolen, the utility model will start and alarm, generating a harsh alarm sound, thereby playing the role of an anti-theft alarm to warn people and scare off thieves. The utility model has the advantages of simple structure, low cost, and good anti-theft effect.

Description

Battery anti-theft device

Technical field:

The utility model relates to an anti-theft device for a storage battery externally connected to a battery.

Background technique:

Batteries in today's vehicles and other machines are so often stolen that it's hard to guard against them. I use another group of alarm systems, which are usually closed when powered by the main battery. When the accumulator is stolen, the alarm system of this group will start to alarm, and generate harsh alarm sound, thereby playing the anti-theft alarm function of warning people and scaring off thieves.

Invention content:

The technical problem to be solved by the utility model is to overcome the above-mentioned deficiencies in the prior art, and provide a storage battery anti-theft device with low cost and good anti-theft effect.

The technical solution adopted by the utility model to solve the above problems is: the storage battery anti-theft device is characterized in that it is provided with a power switch, a storage battery, an alarm control relay, an alarm power supply, an alarm, a loudspeaker, an alarm circuit switch, a power switch and an electrical appliance It is connected in series between the two poles of the battery, the alarm control relay is connected in parallel between the two poles of the battery, the normally closed contact of the alarm control relay, the alarm switch, and the alarm are connected in series between the two poles of the alarm power supply, and the speaker is connected in parallel between the two poles of the alarm end.

The utility model has the advantages of simple structure, low cost and good anti-theft effect.

Description of drawings:

Fig. 1 is a schematic diagram of the circuit structure of the embodiment of the utility model.

Detailed ways:

As shown in Figure 1, the storage battery anti-theft device of the embodiment of the utility model includes a power switch K, a storage battery DC1, an alarm control relay KA, an alarm power supply DC2, an alarm JD, a loudspeaker Y, and an alarm circuit switch S. Among them, the power switch K and the vehicle (machine) electrical appliance D are connected in series between the two poles of the storage battery DC1 to form a main circuit to control the start and stop of the vehicle or machine. The alarm control relay KA is connected in parallel between the two poles of the battery DC1, and is continuously powered by the battery DC1. The normally open contact of the alarm control relay KA is connected in series with the alarm power supply DC2, the alarm circuit switch S (normally closed) and the alarm JD are also connected in series between the two poles of the alarm power supply DC2, and the speaker Y is connected in parallel between the two poles of the alarm JD end. The alarm circuit includes an alarm control relay KA, an alarm power supply DC2, an alarm JD, a loudspeaker Y, and an alarm circuit switch S. When the alarm circuit is connected, the loudspeaker Y sounds. The alarm circuit is independent, and there is a separate alarm power supply DC2 to supply power, so after the main circuit storage battery DC1 is taken out, it can supply power to the alarm circuit to alarm.

When in use, turn off the power switch K, and the vehicle or machine starts. When the storage battery DC1 is taken out, the alarm control relay KA is powered off, the normally open switch controlled by it is closed, and the alarm circuit is connected, it will start and alarm, and generate a harsh alarm sound, so as to warn people and scare away thieves. Alarm function.

When the storage battery DC1 is replaced, the alarm circuit switch S is turned off, and the alarm circuit is disconnected, so that unnecessary alarms will not interfere with people's normal work.

Claims (1)

1, a kind of accumulator anti-theft device, it is characterized in that: be provided with power switch, accumulator, controlling alarm relay, alarm power supply, alarm, loudspeaker, warning circuit switch, power switch and electrical appliance are connected in series between accumulator the two poles of the earth, the controlling alarm relay is connected in parallel between accumulator the two poles of the earth, the normally closed contact of controlling alarm relay, alarm switch, alarm are connected in series between the alarm two poles, and loudspeaker is connected in the alarm two ends in parallel.

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