CN204978549U

CN204978549U - Car theftproof circuit

Info

Publication number: CN204978549U
Application number: CN201520524989.6U
Authority: CN
Inventors: 杨先明; 余阳; 操成; 刘路; 陈新玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-07-20
Filing date: 2015-07-20
Publication date: 2016-01-20
Anticipated expiration: 2025-07-20

Abstract

(B, ) the utility model relates to a car theftproof circuit, it includes oil pump power supply, electronic switch, (b) (b) RF (b) (b) control module and car oil pump, (B, ) (b) RF (b) (b) control module's signal output part is connected with electronic switch's control end, and oil pump power supply is connected with (b) (b) RF (b) (b) control module's power end, electronic switch for according to the level signal of (b) (b) RF (b) (b) control module's signal output part output, the switching on and break off of the feeder ear of control oil pump power supply and car oil pump. The utility model discloses can solve problems bulky, that the line is many, the disguise is poor. (B, )

Description

Automobile burglar circuit

Technical field

the utility model relates to automobile burglar circuit.

Background technology

the principle of current car alarm as shown in Figure 1.RF control module is arranged on below automobile instrument panel, and oil circuit relay is arranged near oil pump, and the normal open switch K of oil circuit relay is serially connected in oil pump supply line.After car owner presses remote controller key, after RF control module receives signal, export corresponding oil-break road signal, receive on the control coil L of relay through line, normal open switch K is disconnected or closes, thus control oil pump Y works or stops, to reach the object of antitheft car locking.

but the RF control module of current Car Burglar Alarm and relay are two independently parts, this is because the volume of relay is comparatively large, can not be encapsulated in a box body, and connection lead is more, cause safe inconvenience, and disguise is also poor with RF control module.

Utility model content

the purpose of this utility model is to propose a kind of automobile burglar circuit, and it can solve, and volume is large, line is many, the problem of disguised difference.

in order to achieve the above object, the technical scheme that adopts of the utility model is as follows:

automobile burglar circuit, it comprises oil pump power supply, electronic switch, RF control module and automobile fuel pump; The signal output part of RF control module is connected with the control end of electronic switch, and oil pump power supply is connected with the power end of RF control module; Described electronic switch, for the level signal exported according to the signal output part of RF control module, the conducting of the feeder ear of control oil pump power supply and automobile fuel pump and disconnection.

preferably, described electronic switch is PMOS, and the grid of PMOS is described control end, and the drain electrode of PMOS is connected with oil pump power supply, and the source electrode of PMOS is connected with the feeder ear of automobile fuel pump.

preferred further, the model of described PMOS is TPC8106.

preferably, electronic switch and RF control module are positioned on same pcb board.

preferably, electronic switch and RF control module are encapsulated in same housing.

preferred further, described housing is plastic casing.

the utility model has following beneficial effect:

because the power consumption of RF control module only has several mA, power consumption is minimum, so can directly be powered by oil pump power supply.Substitute relay with electronic switch, volume is very little, and can be contained on same circuit card with RF control module, and seal up plastic cement, just draw single line as on eraser, volume is very little, and reliability is high, good concealment, and it is also very convenient, easy to install.

Accompanying drawing explanation

fig. 1 is the circuit diagram of the car alarm of prior art;

fig. 2 is the circuit diagram of the car alarm of the utility model preferred embodiment.

Detailed description of the invention

below, by reference to the accompanying drawings and detailed description of the invention, the utility model is described further.

as shown in Figure 2, a kind of automobile burglar circuit, it comprises oil pump power supply VDD, electronic switch M, RF control module and automobile fuel pump Y.

the signal output part of RF control module is connected with the control end of electronic switch M, and oil pump power supply VDD is connected with the power end of RF control module; Described electronic switch M, for the level signal exported according to the signal output part of RF control module, the conducting of the feeder ear of control oil pump power supply VDD and automobile fuel pump Y and disconnection.

preferably, the electronic switch M of the present embodiment preferably adopts PMOS, and the grid of PMOS is described control end, and the drain electrode of PMOS is connected with oil pump power supply VDD, and the source electrode of PMOS is connected with the feeder ear of automobile fuel pump Y.

the model of the PMOS of the present embodiment preferably adopts TPC8106.

electronic switch M and the RF control module of the present embodiment are positioned on same pcb board.Electronic switch M and RF control module are encapsulated in same housing.Described housing can be plastic casing.

the working process of the present embodiment is as follows:

oil pump power supply VDD is that RF control module is powered, when car owner presses car locking key, the signal output part of RF control module sends oil-break road signal to the grid of PMOS, PMOS is ended, thus the feeder ear of oil pump power supply VDD and automobile fuel pump Y is disconnected, when car owner press separate locking key time, the signal output part of RF control module sends to the grid of PMOS and recovers oil circuit signal, make PMOS conducting, thus make the feeder ear conducting of oil pump power supply VDD and automobile fuel pump Y.

for a person skilled in the art, according to technical scheme described above and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection domain of the utility model claim.

Claims

1. automobile burglar circuit, is characterized in that, comprises oil pump power supply, electronic switch, RF control module and automobile fuel pump; The signal output part of RF control module is connected with the control end of electronic switch, and oil pump power supply is connected with the power end of RF control module; Described electronic switch, for the level signal exported according to the signal output part of RF control module, the conducting of the feeder ear of control oil pump power supply and automobile fuel pump and disconnection.

2. automobile burglar circuit as claimed in claim 1, is characterized in that, described electronic switch is PMOS, and the grid of PMOS is described control end, and the drain electrode of PMOS is connected with oil pump power supply, and the source electrode of PMOS is connected with the feeder ear of automobile fuel pump.

3. automobile burglar circuit as claimed in claim 2, is characterized in that, the model of described PMOS is TPC8106.

4. automobile burglar circuit as claimed in claim 1, is characterized in that, electronic switch and RF control module are positioned on same pcb board.

5. automobile burglar circuit as claimed in claim 1, is characterized in that, electronic switch and RF control module are encapsulated in same housing.

6. automobile burglar circuit as claimed in claim 5, is characterized in that, described housing is plastic casing.