JP2005143856A - Automatic fire extinguishing system for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automatic fire extinguishing system for an automobile which eliminates an erroneous release of an extinguishing agent from inside an extinguishing agent holding container because the inside of the extinguishing agent holding container keeps un-compressed in a normal condition, and enables the an extinguishing agent 100% of release because the distal end of a siphon tube moves to the position corresponding to the bottom of the inside of the extinguishing agent holding container in whichever direction the automobile turns over to stop. <P>SOLUTION: The system comprises a gas generator 1 operating equally with an air bag or others, the extinguishing agent holding container 3 compressed with a gas operated with the gas generator 1, the siphon tube 6 arranged inside of the extinguishing agent holding container 3 and whose distal end 6a can move to any position inside of the extinguishing agent container 3 with its tare weight and a nozzle 4 with a fire detecting function arranged guided out from the siphon tube 6. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an automatic fire extinguishing system for automobile fires.

  Conventionally, as an automatic fire extinguishing system for an automobile fire, there are a system that uses a pressure-accumulation type as a fire extinguisher storage container and a system that uses a pressure-type fire extinguisher storage container.

  The problem to be solved is that when a pressure-accumulating type is used for the fire extinguisher storage container, the fire extinguisher in the fire extinguisher storage container is accidentally released due to vibration or light impact of the car, and the pressure extinguishing agent storage container is of the pressure accumulating type Of course, when using a pressurized type, the tip of the siphon tube may come out in the gas and the fire extinguishing agent cannot be released depending on the direction in which the automobile has fallen and stopped.

  The present invention includes a gas generator that operates in the same manner as an air bag, a fire extinguisher storage container that is filled with a gas generated by the operation of the gas generator, a fire extinguisher storage container, and the tip of the gas generator It is characterized by comprising a siphon tube that can be moved by its own weight to any position in the extinguishing agent storage container, and a nozzle with a fire detection function that is led out from the siphon tube and deployed.

  In the present invention, when there is a possibility of a fire, the inside of the extinguishing agent storage container is filled with pressure, so that the inside of the extinguishing agent storage container is always in a non-pressure state. There is no accidental release, and even if the car falls down and stops in any direction, the tip of the siphon tube moves to the position where it hits the bottom in the fire extinguisher storage container. There is.

  When there was a possibility of a fire, the gas generator was activated to fill the fire extinguisher storage container with gas, and the fire-extinguishing nozzle was released to release the fire extinguisher.

  FIG. 1 is a schematic view showing an embodiment of the system of the present invention. In the figure, 1 is a gas generator provided in the engine room 2, 3 is a fire extinguisher storage container that is charged with gas generated by the operation of the gas generator 1, and 4 is an engine connected from the fire extinguisher storage container 3 by a pipe 5. Nozzle 6 with a fire detection function provided in the room 2, 6 is a siphon pipe connected to the pipe 5 and in the extinguishing agent storage container 3, and the extremity 6a of the extinguishing agent storage container 3 is provided by two universal pipe joints 7 and 8. It moves to any of the positions by its own weight.

  The gas generator 1 is operated in the same manner as an air bag or the like, for example, when there is a risk of a fire due to an accident or the like of the automobile 9. Therefore, the installation position is not limited to the illustrated one.

  Now, when the gas generator 1 is operated, the gas from the gas generator 1 is charged into the extinguishing agent storage container 3 and the inside of the extinguishing agent storage container 3 is in a pressurized state. When the nozzle 4 with a fire detection function detects a fire in the engine room 2 and opens it, the fire extinguisher in the fire extinguisher storage container 3 is discharged from the nozzle 4 with the fire detection function through the pipe 5 from the siphon pipe 6. The

  At that time, when the automobile 9 is in a straight normal state as shown in the figure, the extinguishing agent in the extinguishing agent storage container 3 also enters the tip 6a of the siphon tube 6 in the illustrated state, for example, the automobile 9 falls. Even if the fire extinguisher storage container 3 is turned upside down, the tip 6a of the siphon tube 6 rotates at the universal joint 8 due to its own weight and changes its position in the fire extinguisher. Since it also rotates at the universal pipe joint 7, the tip 6 a of the siphon pipe 6 changes its position to the bottom side where the extinguishing agent is present due to its own weight in any state of the automobile 9, so that the extinguishing agent enters.

  When NOVAC 1230 (registered trademark of Sumitomo 3M) is used as a fire extinguishing agent, the drug is liquid when stored in the fire extinguishing agent storage container 3, but from the nozzle 4 with a fire detection function in a pressurized state. Since it vaporizes when released, it exhibits a strong fire-extinguishing effect in this type of engine fire.

  As described above, since the inside of the fire extinguishing agent storage container 3 is not pressurized when the automobile 9 is used in a normal state, the fire extinguishing agent in the fire extinguishing agent storage container 3 is erroneously released due to daily vibration of the automobile or a light impact. There is nothing to do. That is, since the inside of the extinguishing agent storage container 3 is charged by the gas generator 1 only when there is a risk of fire, the use of the automobile 9 is the same as the conventional one.

  In the above embodiment, the siphon tube 6 is connected by the two universal pipe joints 7 and 8 so that the tip 6a can be swung. The swivel structure of the tip 6a is shown in the figure. Of course, not limited to.

  The present invention can be widely used for fires throughout automobiles.

It is the schematic which shows one Example of this invention.

Explanation of symbols

1: Gas generator 2: Engine room 3: Fire extinguisher storage container 4: Nozzle with fire detection function 5: Piping 6: Siphon pipe 6a: Tip of siphon pipe 6 7: Universal pipe joint 8: Universal pipe joint

Claims (1)

  A gas generator that operates in the same manner as an air bag, a fire extinguisher storage container that is charged with a gas generated by the operation of the gas generator, and the extinguisher storage container that is provided in the fire extinguisher storage container and that has a leading end. An automatic fire extinguishing system for an automobile, comprising a siphon tube that can move to any position within itself by a dead weight, and a nozzle with a fire detection function that is led out from the siphon tube and deployed.

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