CN201296229Y - Battery anti-stealing device for vehicle - Google Patents

Abstract

The utility model discloses a device for preventing stealing batteries, which is mainly provided with a circuit board in a vehicle battery container, wherein the circuit board consists of three main loops; namely a main control MCU loop, a current detection loop and an anti-theft function starting loop, and one or two contacts capable of controlling the on-off function of the main control MCU loop are arranged on the anode output and the cathode output on line. The utility model discloses application electronic control circuit, the external power supply situation of control battery when being set for in the thief-proof situation, as long as sense supply current when being greater than the preset value, cut off the external power supply of whole battery promptly. That is, the thief cannot start the engine to drive the car away, so the thief can prevent theft.

Description

Battery is prevented the auto theft device

Technical field

The utility model relates to a kind of automobile burglar fender guard, relates in particular to a kind of utilization and turns off the anti-auto theft device of battery that battery supply can't start by automobile.

Background technology

Automobile batteries in the past is all lead-acid battery, and therefore can not install some controllers additional in inside controls outgoing current owing to stereotype and acid solution are housed in the container.Also therefore, car thief only needs the lock electric wire is cut off, and contact short circuit once just can start the engine and easily car be driven away.Can't utilize battery as anti-theft tool fully.

If, the power supply of battery can be turned off, the car thief can't be started the engine, then except using the method for towing, or outside the battery that changes the outfit, otherwise can't steal car.To the car owner and Yan Youduo one deck guarantee.

The inventor's above-mentioned problem that ruminates over, think if can utilize lithium cell not have the no service required characteristic of acid solution, the container that designs a kind of hermetic type is loaded on control desk in the container, is controlled the mouth of battery then by inside, can cut off the output of fgn power supply when needed; Burglar's vehicle that drives away that just can't start the engine then.

Therefore a kind of brand new battery current control setup of special design cuts off the supply of battery fgn power supply in case of necessity, allows car owner's car can reach safer anti-theft protection.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of battery to prevent the auto theft device, it utilizes a control circuit, come the external power supply situation of Control of Automobile battery, after the car owner starts anti-theft feature, to start engine as long as there is the burglar to invade in the car, then automobile batteries can be turned off the supply of fgn power supply at once, and engine can't be started, and the burglar just can't drive away car.

For solving the problems of the technologies described above, technical solution of the present utility model is:

A kind of battery is prevented the auto theft device, mainly installs a circuit card in the automobile batteries container, and this circuit card is made up of three main loops; Be that main control MCU loop, current sense loop and anti-theft feature start the loop, and export online arrangement one or two at both positive and negative polarity can be by the contact of its conducting of main control MCU loop control or cut-out function; An electric current decision content is preset in this main control MCU loop, as long as the battery outgoing current surpasses this decision content, action is promptly carried out according to predefined contents of program in this loop.

Described anti-theft feature starts the loop and uses wired or wireless mode to start the automobile batteries anti-theft feature, or utilizes the automobile remote-control device to start.

Described contact utilization relay or MOS have contact or contactless part.

After adopting such scheme, the utility model designs a circuit card, one current sense loop is arranged on it, after anti-theft feature starts, this current sense loop is transferred to main control loop with signal when as long as on detection of the outgoing current of battery is greater than preset value, is assigned the order of cutting off the electricity supply by MCU at once, allow the contact tripping at once of original conduction status, cut off circuit.At this moment, the output of automobile batteries fgn power supply has been electroless state, and car engine can't start.That is to say that the car thief can't start engine car is driven away this moment, also therefore can reach thief-proof purpose.

Description of drawings

Fig. 1 is a basic structure scheme drawing of the present utility model.

The main element nomenclature

10 batteries, 20 master control MCU loops

30 current sense loops, 40 anti-theft featuries start the loop

50 contacts

The specific embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Because therefore big a lot of when the current ratio of automobile when starting stopped usually are provided with an electric current decision content, as long as electric current surpasses this decision content, promptly represent automobile to be in just at starting state.If set anti-theft feature this moment, then the output of automobile batteries 10 fgn power supplys is turned off at once.

Please referring to shown in Figure 1, the utility model mainly on circuit card basic setup have three loops and one can open circuited contact 50.This contact 50 is installed on positive and negative arbitrary line end of battery mouth, and this circuit card is hidden in cell container inside.

On main control MCU loop 20, be provided with program and electric current decision content in advance, after anti-theft feature starts loop 40 startups, current sense loop 30 promptly begins to detect the outgoing current of automobile batteries 10, and with data transmission to main control MCU loop 20, when outgoing current surpassed predefined electric current decision content, main control MCU loop 20 move instructions at once allow contact 50 trippings become to open circuit.At this moment, the output of automobile batteries 10 fgn electric currents has become electroless state, and engine can't start.

After anti-theft feature started loop 40 startups, automobile batteries 10 still can power supply be given each electric parts of automobile in the current value of setting.Do not influence other normal running, just can not start engine.

And after anti-theft feature starts loop 40 and closes, main control MCU loop 20 promptly no longer docking point 50 make the order that tripping is opened circuit.

The utility model is a special and novel design, few and the tool clever thought intention of structure, if the little circuit that simply adds other is on the utility model, but full feature system utilization feature of the present utility model, only be that simple additional hours must belong to content of the present utility model, and specification sheets of the present utility model and graphic, be all the example of the preferable feasible enforcement of this creation, but be not therefore to arrest limit claim of the present utility model, so the equivalent structure that uses the utility model specification sheets and graphic content to do such as changes, must all belong in this creation claim, the spy gives Chen Ming.

Described anti-theft feature starts loop 40 and is used for starting automobile batteries 10 anti-theft featuries, and its startup method also can use wired or wireless mode to start, and also can utilize existing automobile remote-control device to be used in combination jointly.

Described contact 50 also can use relay or MOS etc. that contact or contactless part are arranged, and having the switching of may command contact, current flowing or break function with it is feature.

Claims (3)

1. A battery anti-theft car device, characterized in that: a circuit board is mainly installed in the car battery container, and the circuit board is composed of three main circuits; namely, the main control MCU circuit, the current detection circuit and the anti-theft function activation circuit, and place one or two contacts on the positive and negative output lines that can be controlled by the main control MCU circuit for its on or off function; the main control MCU circuit presets a current judgment value, as long as the battery output current exceeds this judgment value, The loop executes actions according to the preset program content. 2. The battery anti-theft car device as claimed in claim 1, characterized in that: the anti-theft function activation circuit uses a wired or wireless method to activate the car battery anti-theft function, or uses a car remote control to activate the car battery anti-theft function. 3. The battery anti-theft car device according to claim 1, characterized in that: said contacts use relays or MOS with or without contacts.