KR20000007949U - Fire prevention device in case of vehicle crash - Google Patents

Abstract

The present invention relates to a fire occurrence prevention device in a vehicle collision, in particular, a signal detector for detecting an ignition signal output from the airbag unit of the airbag system (Air Bag System) to the inflator, and the detection result of the signal detector And a fire prevention device in a vehicle crash by providing a fuel blocking means for shutting off fuel supply from a fuel tank and a power cut-off means for shutting off power of a battery according to a detection result of the signal detector. It prevented the occurrence so that property damage and casualties are reduced in case of an accident.

Description

Fire prevention device in case of vehicle crash

The present invention relates to a fire prevention device during a vehicle crash. In particular, the air bag system prevents the leakage of fuel when the vehicle collides with the air bag system, and at the same time, cuts off the power supply to prevent the fire. It relates to a fire prevention device.

When the vehicle collides, the fuel pipe is damaged and fuel is frequently leaked to the outside. When the electrical leakage of the electrical equipment occurs in this state of fuel leakage, the possibility of a vehicle fire is increased.

However, since the conventional vehicle is not equipped with a device to prevent fuel leakage and cut off the power when the vehicle crashes, the risk of fire in a vehicle crash is very high, and the vehicle and the occupant are exposed to the risk of such a fire. There was a problem that property damage and casualties were increased during the accident.

The present invention was devised to solve the above problems, and when the collision of the vehicle is recognized, the structure prevents the leakage of fuel and cuts off the power, thereby preventing the occurrence of fire during the collision of the vehicle, resulting in property damage and casualties. It is an object of the present invention to provide a fire prevention apparatus in the event of a vehicle crash to be reduced.

1 is a block diagram showing a fire prevention apparatus when a vehicle collision according to the present invention.

<Explanation of symbols for the main parts of the drawings>

20: signal detector 30: solenoid valve

40: relay

In order to achieve the above object, there is provided a fire prevention device in a vehicle collision according to the present invention, a signal sensor for detecting an ignition signal output to an inflator from an airbag unit of an airbag system, and the detection of the signal detector. As a result, it is composed of a fuel cut-off means for cutting off the fuel supply from the fuel tank, and a power cut-off means for cutting off the power of the battery according to the detection result of the signal detector.

The present invention configured as described above has the advantage of preventing the occurrence of fire in the event of a vehicle collision to reduce property damage and casualties in the event of an accident.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a block diagram showing a fire prevention apparatus when a vehicle collision according to the present invention.

Referring to FIG. 1, the apparatus for preventing fire in a vehicle collision according to the present invention includes a signal detector 20 for detecting an ignition signal output from the airbag unit 13 of the airbag system to the inflator 15, and the signal detector. A fuel cutoff means for shutting off the fuel supply from the fuel tank 31 according to the detection result of 20, and a power cutoff means for shutting off the power of the battery 41 according to the detection result of the signal detector 20; do.

Here, the signal detector 20 has a built-in backup battery for supplying backup power in an emergency, and the fuel blocking means is installed in the fuel pipe 33 so as to be located at the inlet side of the fuel tank 31, the fuel pipe 33 ) Is composed of a solenoid valve 30 to open and close, the power cut-off means is installed between the signal sensor 20 and the battery 41 relay (40) for applying / blocking the power of the battery 41 to the electrical equipment Consists of

The fire prevention apparatus at the time of a vehicle collision according to the present invention configured as described above is operated as follows.

When the vehicle collides in the airbag system, the collision sensor 11 detects the collision of the vehicle and outputs a vehicle collision signal toward the airbag unit 13, and the airbag unit 13 receives the vehicle collision signal of the collision sensor 11. After inputting the airbag, it is determined whether the airbag installed in the driver's seat or the passenger seat side is deployed according to the strength of the impact.

Then, when the airbag needs to be deployed, the airbag unit 13 outputs an ignition signal from the airbag unit 13 to the inflator 15 mounted on the airbag to combust the gas generating agent in the inflator 15, thus generating the gas thus burned. The airbag is inflated by the agent.

As the airbag is deployed as described above, fuel leakage is prevented by the signal detector 20 and the power of the battery is cut off. First, the signal detector 20 is output from the airbag unit 13 to the inflator 15. The ignition signal is detected and outputs the fuel tank cutoff signal and the battery cutoff signal to the solenoid valve 30 and the relay 40, respectively.

Thereafter, the solenoid valve 30 receiving the electric signal of the signal sensor 20 is operated to shut off the fuel pipe 33 so that the fuel supply from the fuel tank 31 is stopped, and at the same time, the relay ( 40 is operated to cut off the power supply of the battery 41 to stop the power supply to the electrical equipment.

Therefore, the present invention, even if the fuel leakage caused by damage to the fuel pipe 33 during the collision of the vehicle, the fuel leakage is extremely small, the electrical spark in the electrical equipment can not be generated to prevent the fire of the vehicle.

The fire occurrence prevention device in the event of a vehicle collision according to the present invention constructed and operated as described above has a structure that prevents leakage of fuel and cuts off power at the same time when the collision of the vehicle is recognized, thereby preventing the occurrence of fire during a vehicle collision. The loss of the vehicle due to the fire is prevented and the safety of the occupants is secured, thereby reducing the property damage and casualties in case of an accident.

Claims (4)

A signal detector for detecting an ignition signal output from the air bag unit of the air bag system to the inflator, and fuel blocking means for shutting off fuel supply from the fuel tank according to the detection result of the signal detector; Fire prevention device in the event of a vehicle, characterized in that consisting of a power cutoff means for shutting off the battery power in accordance with the detection result of the signal detector. The method of claim 1, The signal detector includes a built-in backup battery for supplying backup power in an emergency. The method of claim 1, The fuel blocking means is installed in the fuel pipe so as to be located at the inlet side of the fuel tank, the fire prevention device in the event of a vehicle crash, characterized in that consisting of a solenoid valve for opening and closing the fuel pipe. The method of claim 1, The power cut-off means is installed between the signal sensor and the battery, the fire prevention device in the event of a vehicle crash, characterized in that consisting of a relay for applying / blocking the power of the battery to the electrical equipment.