JP2001129111A - Automatic fire extinguisher for vehicle using pressure of air bag system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system for preventing a fire by detecting a vehicle fire caused by a collision, etc., not with its temperature but by its impact and automatically operating a fire extinguisher. SOLUTION: A flat container 1 is filled with a pressurizing air bag 2 and a fire extinguishing agent 3, and high pressure gas generated when an air bag system used in an automobile operates is connected to an introduction port 4 through a pipe to destroy the bottom of the container by using expanding pressure of the air bag mounted within the container. Thus, the fire extinguishing agent is scattered in an engine room at a moment to prevent a fire from occurrence and to execute fire-extinguishing activity.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic fire extinguisher system for automatically extinguishing a fire such as a fire when a vehicle such as an automobile receives a large impact due to a serious accident. It is in the field of fire extinguisher.

[0002]

2. Description of the Related Art Although vehicle fires due to collisions and the like are increasing year by year, there are almost no automatic fire extinguisher and automatic fire extinguisher for vehicles. The system operates by sensing a rise in temperature at a time, and has no function of preventing the occurrence of fire beforehand, and therefore cannot sufficiently play a role in vehicle fires such as automobiles.

[0003]

With the development of expressways and the speeding up of automobiles, the number of vehicle fires caused by automobile collisions and the like has been increasing year by year, and the number of casualties has also increased.
In the case of a collision accident, passengers cannot escape quickly in many cases, and because fuel such as gasoline is installed, once a fire occurs, the area around the fire is fast and it is extremely difficult to extinguish it. Many. Therefore, in the case of a vehicle fire, the most important function is not only a fire extinguishing function when a fire occurs, but also a function for automatically preventing the occurrence of a fire.

[0004]

In the case of an automobile accident, fuel such as gasoline leaks more than immediately after a collision, and a secondary fire often occurs from a place where the engine is mounted due to factors such as an electric system. Therefore, in the event that a serious accident occurs, the fire extinguishing agent can be diffused into the engine room at the stage before the fire starts to prevent the fire from occurring. The most important function is to detect the degree of impact and automatically activate the fire extinguisher. Therefore, the problem is solved by using high-pressure gas generated by the operation of an air bag system which has already been technically completed as an automobile part and mass-produced.

[0005]

[Function] The high-pressure gas generated when the air bag system is activated by sensing the impact applied to the vehicle due to a collision or other accident, inflates the air bag in the container, forcibly destroying the bottom of the container. Disperse the fire extinguisher instantly. Therefore, if a certain level of impact is applied, the fire extinguisher will operate regardless of whether a fire has occurred or not, and prevent fires from occurring. I can do it.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flat container formed of a material such as heat-resistant hard plastic. 2 is an air bag attached to the upper part of the container. 3 is a fire extinguisher filled in a container. Reference numeral 4 denotes a high-pressure gas inlet, which is connected to an air bag system by a pipe. The high pressure gas generated when the air bag system is activated inflates the air bag in the container through 4 to increase the internal pressure, forcibly destroying the bottom 7 of the container and extinguishing the fire extinguishing agent. Is instantaneously diffused. 5 is a reinforcing material such as an iron plate that is protected except for the bottom container. Reference numeral 6 denotes an enclosing plate that is filled with an air bag and a fire extinguisher and then bonded and sealed.

[0007] Depending on the structure, the airbag system is economical in cost if used in combination with the original self-defense system.

The fire extinguishing agent used can be either a powder fire extinguishing agent that can cope with an oil fire or a reinforced liquid fire extinguishing agent. Agents are believed to be more advantageous.
In this case, it is desirable to use a chemical having a large fire extinguishing effect, a chemical which adheres to the surface of a high-temperature object, blocks oxygen to prevent relapse, and a foaming surfactant.

The amount of the extinguishing agent to be charged is 3 kg to 5 kg.
A degree is desirable. Therefore, the inner volume of the container is 70 cm x 7
If it is 0 cm × 1 cm, 4900 cc can be secured, so that the volume and the shape can be stored in the gap between the bonnet and the engine.

Since the shape of the hood varies greatly depending on the type of vehicle, the container can be molded in accordance with the shape.

There is also a method of making a cut in a grid pattern on the surface of the bottom of the container so that the bottom is easily broken by internal pressure.

When a liquid fire extinguisher is used, it is necessary to provide a certain space in order to allow for expansion due to temperature.

As described above, since a large amount of fuel is mounted on a vehicle such as an automobile, fires often occur after the fuel leaks out, and once the fire occurs, it is extremely difficult to extinguish the fire. As a result, it is possible to exhibit the function of preventing the occurrence of fire by sensing the degree of impact instead of detecting the occurrence of fire, thereby greatly reducing the number of casualties due to vehicle fire. effective.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a structure of the present invention as viewed from a side.

FIG. 2 is a cross-sectional view of the container of the present fire extinguisher when viewed from a plane.

[Explanation of symbols]

 1 Fire extinguisher container 2 Air bag mounted in container 3 Fire extinguisher 4 High pressure gas inlet 5 Reinforcement protective material for container 6 Sealing plate 7 Bottom container destroyed by internal pressure

Claims (2)

[Claims] 1. A container having a bottom shape made of a material such as a hard plastic, which has a flat shape so that it can be mounted inside a bonnet of an automobile, and which is instantaneously destroyed when a certain strain is applied due to an increase in internal pressure. After installing an air bag in the upper part of the fire extinguisher, the fire extinguisher is configured to be filled with a fire extinguishing agent. An automatic fire extinguisher for vehicles that uses the pressure of an air bag system that breaks the bottom of the container with the expanding pressure and instantly diffuses the fire extinguishing agent. 2. The operation of the air bag system,
A system for automatically operating a fire extinguisher or a fire extinguisher for a vehicle using generated high-pressure gas and a system for diffusing a fire extinguishing agent using the pressure.