KR20220116884A - Apparatus for automatically extinguishing fire in an engine room of a car - Google Patents

Abstract

Disclosed is an apparatus for automatically extinguishing fire (100) in an engine compartment of a vehicle, which is able to be flexibly detachable from a part over a gap of the engine compartment (400) of the vehicle and a hood (500), be conveniently installed, detect the possibility of fire in an early stage by a temperature sensor, a smoke sensor, and an olfactory sensor when a fire occurs because of overheat of the engine compartment, generate a warning sound to the surroundings, automatically extinguish the fire at the same time, prevent a secondary damage, protect human lives and property, recharge the fire-extinguishing solution after use, and be reusable. A large number of temperature sensors (112), a large number of smoke sensors (114), and a large number of olfactory sensors (116) are installed to detect whether abnormal overheating, smoke or odor occurs at an early stage of a fire in the engine compartment (400) of the vehicle. A warning sound generator (122), a display (124), and a location information transmitter (126) are installed to warn of the risk of a fire at an early stage of the fire in the engine compartment (400) of the vehicle. A fire-extinguishing solution container (210) of an automatic fire extinguishing unit (200) for extinguishing a fire by spraying a fire-extinguishing solution in the event of the fire in the engine compartment (400) of the vehicle is installed inside the engine compartment (400) of the vehicle, and is made of a soft synthetic resin material in the form of a bag. A large number of magnets (218) are attached to a rear surface of the fire-extinguishing solution container (210).

Description

Automatic extinguishing fire in an engine room of a car {Apparatus for automatically extinguishing fire in an engine room of a car}

The present invention relates to an automatic fire extinguishing system for an automobile engine room, and more particularly, it can be flexibly attached and detached over a gap and a bonnet of an automobile engine room, so it is easy to install and a temperature sensor when a fire occurs due to overheating of the engine room By detecting the possibility of fire early by the smoke sensor and olfactory sensor, a warning sound is generated and the fire is automatically extinguished at the same time, thereby preventing secondary damage and protecting people and property. It relates to an automatic fire extinguishing system in an automobile engine room that can be recharged and recycled.

Recently, the occurrence of automobile fires due to defects in the body of foreign automobiles has become a big social issue. Automobile companies around the world are researching the causes and countermeasures of fires in relation to the occurrence of automobile fires. .

In particular, due to the characteristics of fires in automobiles, it takes time to take out a fire extinguisher from the trunk after an emergency stop while driving and move to the engine room, which is the ignition point. This makes it difficult to manually open the bonnet, making it virtually impossible to extinguish the fire. Therefore, since it is a situation that avoids the fire site and pays attention only to the promotion of body safety, it is inevitable to waste opportunity cost due to the after-the-fact response as well as enormous property damage. In addition, it may cause secondary damage to nearby vehicles or people.

Meanwhile, countries around the world are forcing and supporting the conversion of all automobiles to electric vehicles by around 2050 with the goal of reducing carbon emissions for the improvement of the global environment. is putting In line with this trend, securing the safety of electric vehicle batteries is emerging as an important task. That is, there is a growing need to prepare countermeasures to protect the valuable life of the driver and passengers and prevent damage to property from fires that may occur in the fuel and electric parts around the vehicle, including the battery of the vehicle.

In line with this trend, various fire extinguishing devices for vehicles are being developed in the related industry to suppress fires occurring in the engine room of a vehicle.

For example, Republic of Korea Patent Registration No. 10-0821142 (registration date: April 03, 2008) discloses a fire suppression in the engine room of an automobile that protects the lives of passengers including the driver by detecting the occurrence of a fire in the engine room and extinguishing the fire. An apparatus is disclosed. However, in this fire suppression device, the forward and backward transfer means, the left and right transfer means, and a pair of forward and reverse motors for moving the fire extinguisher to the fire position must be installed on the lower surface of the hood that opens and closes the upper part of the engine room. There were many limitations and complicated configuration, so it was installed during the automobile assembly process in an automobile manufacturing plant, so economic feasibility was low, and versatility and scalability were poor.

Next, the Republic of Korea Public Utility Model No. 20-2015-0003540 (published date: September 30, 2015) discloses a fire extinguishing system for a vehicle, which fires and overheats an engine or a vehicle due to overheating of a radiator. It is a device designed to extinguish a fire by quickly responding to a vehicle fire caused by a collision between them and spraying the extinguishing liquid. In this vehicle fire extinguishing system, the fire extinguisher and push switch are installed in the lower part of the vehicle's interior, and the extinguishing liquid supply line is extended from the vehicle's fire extinguisher to the engine room through the engine room supply line, the primary injection nozzle, and the indoor supply line and the secondary injection nozzle. It is configured to spray extinguishing fluid.

However, in the case of a vehicle fire, the driver operates the fire extinguishing system by pressing the push switch located around the driver's seat. It has a fatal drawback that it cannot work. In addition, there is a problem in that it is difficult to respond quickly when the driver does not notice the fire even though the vehicle fire is already in progress.

Republic of Korea Patent Registration No. 10-0821142 (Registration Date: April 03, 2008) Republic of Korea Public Utility Model No. 20-2015-0003540 (Publication date: September 30, 2015)

The technical problem to be solved by the present invention is that it can be flexibly attached and detached over a gap and a bonnet of an automobile engine room, so installation is easy, and when a fire occurs due to overheating of the engine room, a temperature sensor, a smoke sensor and an olfactory sensor This is to provide an automatic fire extinguishing system for the engine room of an automobile that can prevent secondary damage and protect lives and property by detecting the possibility of a fire early and automatically suppressing the fire while generating a warning sound in the vicinity. .

In addition, the technical problem to be solved by the present invention is to provide an automatic fire extinguishing device for an automobile engine room that can be recycled by recharging the extinguishing liquid after extinguishing a fire in the automobile engine room.

In order to solve the technical problem as described above, the present invention,

As an automatic fire extinguishing system in an automobile engine room,

a sensing unit for detecting whether abnormal overheating, smoke generation, and odor are generated at the initial stage of a fire in an automobile engine room, wherein the sensing unit includes a plurality of temperature sensors, a plurality of smoke sensors, and a plurality of olfactory sensors;

a warning unit for warning the driver, occupants, and surroundings of the danger of fire at the initial stage of a fire in the engine room of the vehicle, wherein the warning unit includes a warning sound generator, a display, and a location information transmitter;

An automatic fire extinguishing unit for extinguishing a fire by spraying a fire extinguishing liquid when a fire occurs in an automobile engine room - The automatic fire extinguishing unit is a fire extinguishing liquid container installed inside the automobile engine room and manufactured in the form of a bag made of a soft synthetic resin material, the A pump for pumping the extinguishing fluid stored in the extinguishing fluid container to the outside, a extinguishing fluid injection pipe assembly fluidly connected with the pump extension pipe of the pump to circulate and spraying the extinguishing fluid, and installed in the middle of the pump extension pipe to control the release of the extinguishing fluid Includes a check valve for -; and

According to the detection signal transmitted from the detection unit, MCU (Micro Controller Unit) for controlling the overall operation of the warning unit and the automatic fire extinguishing unit;

A solenoid valve for controlling the operation of the pump is installed between the MCU and the pump.

A digestive juice inlet is formed at the upper front position of the digestive juice container, and the digestive juice injection hole is closed to be opened and closed by a stopper. and a plurality of magnets are attached to the rear surface of the extinguishing liquid container.

The fire extinguishing fluid injection pipe assembly is characterized in that it is installed over the bonnet (bonnet) lower surface of the vehicle.

The pump extension pipe extending from the digestive fluid container is fluidly connected to the main branch pipe of the injection pipe assembly, and a plurality of longitudinal branch pipes extend from the main branch pipe, and a plurality of longitudinal branch pipes are disposed between the plurality of longitudinal branch pipes. Transverse branch pipes are arranged to extend in the transverse direction of the engine room, and the main branch pipe, the plurality of longitudinal branch pipes, and the plurality of transverse branch pipes are each fixed to a plurality of fixed branches installed at their intermediate positions. It is fixed on the lower surface of the bonnet by the pieces, and a plurality of injection nozzles are disposed in the plurality of longitudinal branch pipes and the plurality of transverse branch pipes to be spaced apart from each other by a predetermined distance, and the plurality of injection nozzles It is characterized in that it can be set by changing the injection angle and the injection distance.

As mentioned above, the conventional fire extinguisher does not have an automatic detection and automatic fire extinguishing function when a fire occurs, causing enormous damage to life and property due to a delay in extinguishing timing when a fire occurs. The device makes the extinguishing liquid container, which is a key part of the automatic fire extinguishing unit for directly extinguishing fire, made of soft plastic, and its shape can be conveniently bent or deformed depending on the installation location, such as round, oval, triangle, or square, and there are many at the rear. Because the magnets are arranged, it can be conveniently installed even in small gaps between parts installed in the engine room.

In addition, since the existing fire extinguisher is metal, there is a risk of large engine thermal expansion due to compressed gas, whereas the fire extinguishing liquid container of the present invention is made of a soft plastic material and has chemical resistance and impact resistance, so damage is prevented and leakage of fire extinguishing liquid is prevented. can be prevented. In addition, the manufacturing cost is low compared to the existing metal fire extinguishers, and even after being used once, only the extinguishing liquid can be recharged and reused. In addition, since the fire extinguishing liquid is sprayed through the injection nozzles of the small pump and injection pipe assembly, there is no risk of high-pressure inert gas filling and leakage, and the fire can be extinguished by efficiently spraying the extinguishing liquid at a free injection angle.

The automatic fire extinguishing system of an automobile engine room according to the present invention is equipped with a temperature sensor, a smoke sensor and an olfactory sensor in order to extinguish a fire at an initial stage, thereby preventing the risk of spreading into a large fire in advance and extinguishing it. It can prevent property damage and fully preserve the functions of key parts such as the vehicle's control box.

1 is a view schematically showing the overall configuration of an automobile engine room automatic fire extinguishing system according to a preferred embodiment of the present invention;
FIG. 2 is a diagram schematically illustrating a fire extinguishing liquid container, its peripheral devices, and a fire extinguishing liquid injection pipe assembly among the automatic fire extinguishing apparatus shown in FIG. 1; FIG.
3 is a view showing a general automobile engine room, and is a view showing an installation possible point of the extinguishing fluid container and its peripheral devices shown in FIG. 2;
4 is an exemplary view in which the fire extinguishing fluid injection pipe assembly shown in FIG. 2 is installed on the bonnet of a general automobile; and
5 is a block diagram showing an operation process of an automatic fire extinguishing system in an automobile engine room according to a preferred embodiment of the present invention.

It is a well-known fact that fires gradually go from the smoke generation stage to the high temperature stage, and then reach the flash point, causing a flame to occur and spread. The automatic fire extinguishing system of the engine room of an automobile according to the present invention detects smoke at the beginning of a fire and operates immediately, thereby eliminating the cause of the fire at the initial stage to prevent loss of life and property, and at the same time deliver an alarm sound to the surroundings. Secondary damage can be prevented.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the configuration and operation of the automatic fire extinguishing apparatus in an engine room of an automobile according to a preferred embodiment of the present invention.

1 schematically shows the overall configuration of an automatic fire extinguishing system 10 for an automobile engine room according to a preferred embodiment of the present invention.

Referring to FIG. 1 , the automatic fire extinguishing apparatus 10 for an engine room of an automobile includes a detection unit 110 for detecting abnormal signs at an early stage of occurrence of a fire in the engine room of the vehicle. The detection unit 110 includes a plurality of temperature sensors 112 for detecting abnormal overheating of the vehicle engine room, and a plurality of smoke for detecting the generation of smoke that is a precursor of flame generation due to abnormal overheating of the vehicle engine room. It includes sensors 114 and a plurality of olfactory sensors 116 for detecting the generation of a burning smell that is a precursor of flame generation due to abnormal overheating of the engine room of the vehicle. The temperature sensors 112, smoke sensors 114, and olfactory sensors 116 are basically installed in an adjacent frame of a vehicle body or parts in an engine room of a vehicle, but, if necessary, outside the engine room. Those skilled in the art will readily understand that it can be installed in various locations, such as a location around a fuel tank or inside a trunk.

The automotive engine room automatic fire extinguishing device 100 is an automatic fire extinguishing unit 200 to be described below according to the detection signals transmitted from the temperature sensors 112, smoke sensors 114 and olfactory sensors 116. and a microcontroller unit (hereinafter referred to as MCU) 300 for controlling the operation of the warning unit 120 as a whole.

In addition, the automatic fire extinguishing apparatus 100 for the engine room of the vehicle includes the warning unit 120 for warning the risk of fire to the driver, passengers, and vehicles or people around the vehicle at the initial stage of the occurrence of a fire in the engine room of the vehicle. The warning unit 120 preferably includes a warning sound generator 122 composed of an MP3 player, a display 124 composed of preferably an LED display, and a location information transmitter 126 composed of a GPS transmitter.

As mentioned above, the automatic fire extinguishing device 100 for the engine room of the vehicle includes the automatic fire extinguishing unit 200 configured to directly suppress the fire by spraying the extinguishing liquid at the ignition point when a fire occurs in the engine room of the vehicle. Preferably, the automatic fire extinguishing unit 200 is installed over the inside of the engine room 400 (refer to FIG. 3) of the vehicle and the lower surface of the bonnet 500 (refer to FIG. 4) of the vehicle.

The automatic fire extinguishing unit 200 is a flexible digestive fluid container 210 manufactured in the form of a bag made of a soft synthetic resin material, and for pumping the extinguishing fluid stored in the extinguishing fluid container 210 to the outside. The pump 220, the fire extinguishing fluid injection pipe assembly 230 for circulating and spraying the fire extinguishing fluid in fluid connection with the pump extension pipe 222 of the pump 220, and installed in the middle of the pump extension pipe 222 to discharge the extinguishing fluid Includes a check valve 224 for regulating the. A solenoid valve 130 for controlling the operation of the pump 220 is installed between the MCU 300 controlling the automatic fire extinguishing unit 200 and the pump 220 .

The accompanying drawings FIG. 2 schematically shows the extinguishing fluid container 210 and its peripheral devices and the extinguishing fluid injection pipe assembly 230 .

As mentioned above, the digestive fluid container 210 is made of a soft synthetic resin material in the form of a bag and is flexible. Unlike conventional fire extinguishers made of iron, in the present invention, the fire extinguishing liquid container 210 is made of synthetic resin in the form of a bag. ) for convenient installation and use. Since the fire extinguishing liquid container 210 made of a soft synthetic resin material can be conveniently bent or deformed depending on the installation location such as round, oval, triangle, or square, depending on the conditions of the installation location, the engine room 400 of the vehicle ( 3) It can be conveniently installed even in a small gap between parts inside, and can respond to shock and vibration.

A digestive fluid inlet 212 is formed in the upper front position of the digestive fluid container 210 , and the extinguishing fluid inlet 212 is closed so as to be able to open and close by a stopper 214 . A pair of latches 216 are installed at positions separated from the digestive fluid inlet 212 in both lateral directions in the upper front of the digestive fluid container 210 . A pair of clasps 216 are attached to parts, frames, or car bodies around the extinguishing fluid container 210 when installing the extinguishing fluid container 210 inside the engine room 400 (see FIG. 3) of the vehicle to fix and support the extinguishing fluid container 210. it is for A plurality of magnets 218 are attached to the rear surface of the digestive fluid container 210 . A plurality of magnets 218 are attached to the surrounding parts, frame, or vehicle body when the extinguishing fluid container 210 is installed inside the engine room 400 (refer to FIG. 3) of the vehicle to fix and support the extinguishing fluid container 210. it is to do

The pump 220 of the automatic fire extinguishing unit 200 may be integrally assembled and disposed on the surface of the front or rear surface of the fire extinguishing liquid container 210. In contrast, the pump 220 of the automatic fire extinguishing unit 200 is fluidly connected with the inside of the fire extinguishing liquid container 210. They may be disposed apart from each other by a predetermined distance through a separate pipeline (reference sign omitted). The pump 220 may vary the capacity of the pump according to the fire target and fire conditions under the control of the MCU 300 . A check valve 224 for controlling the flow of the extinguishing liquid is disposed at an intermediate position of the pump extension pipe 222 extending from the discharge port of the pump 220 . Preferably, the fire extinguishing liquid container 210, the pump 220, and a part of the pump extension pipe 222 of the automatic fire extinguishing unit 200 are installed inside the engine room 400 of the vehicle.

FIG. 3 is a view showing a typical automobile engine room, and is a view showing points where the extinguishing fluid container 210, the pump 220, and a part of the pump extension pipe 222 can be installed.

As shown in FIG. 3, according to the present invention, the extinguishing fluid container 210, the pump 220, and a part of the pump extension pipe 222 are located inside the engine room 400 in the engine room 400 of the vehicle. It can be installed in the space or gap between the pre-installed parts. That is, there are various spaces or gaps between the parts installed in the engine room 400 . The extinguishing fluid container 210 itself is made of a flexible synthetic resin material and the extinguishing fluid held in the extinguishing fluid container 210 . Also, since it is a liquid, it can be properly crumpled or deformed and installed. Therefore, the extinguishing liquid container 210 can be easily attached to a narrow space, and its shape can be diversified depending on the location.

A pair of latches 216 installed on both sides of the front upper part of the extinguishing fluid container 210 are hung on the surrounding parts, frame, or car body to fix and support the extinguishing fluid container 210, and at the same time, the rear surface of the extinguishing fluid container 210 By attaching a plurality of magnets 218 attached to the surrounding parts to the frame or the vehicle body, the magnetism of the magnets is used to fix and support the extinguishing fluid container 210 . As a result, the fire extinguishing liquid container 210 is easy to install in a space or a gap between the parts already installed in the engine room 400 and can be moved freely.

On the other hand, the pump extension pipe 222 extending from the extinguishing fluid container 210 is extended to face the lower surface of the bonnet 500 (see FIG. 4 ) covering the engine room.

Referring back to FIG. 2 , the pump extension pipe 222 extending from the extinguishing fluid container 210 is installed on the lower surface of the bonnet 500 to provide a fluid in the main branch pipe 232 of the injection pipe assembly 230 . Connected. Preferably, the main branch pipe 232 is disposed in the transverse direction to come to a position close to the rear of the engine room 400 on the lower surface of the bonnet (500).

4 is an exemplary view in which the fire extinguishing fluid injection pipe assembly 230 shown in FIG. 2 is installed on a bonnet 500 of a general automobile.

2 and 4 , a plurality of longitudinal branch pipes 234 extend from the main branch pipe 232 , and the plurality of longitudinal branch pipes 234 are the lower surface of the bonnet 500 . It extends forwardly to the engine room 400 from above. A plurality of transverse branch pipes 236 are arranged to extend in the transverse direction of the engine room 400 between the plurality of longitudinal branch pipes 234 . The main branch pipe 232 , the plurality of longitudinal branch pipes 234 , and the plurality of transverse branch pipes 236 of the injection pipe assembly 230 are fluidly connected to each other so that the digestive fluid can circulate. The main branch pipe 232, a plurality of longitudinal branch pipes 234, and a plurality of transverse branch pipes 236 of the injection pipe assembly 230 are a plurality of fixing pieces installed at their intermediate positions, respectively. It is fixed on the lower surface of the bonnet 500 by 237 .

A plurality of injection nozzles 238 are disposed in the plurality of longitudinal branch pipes 234 and the plurality of transverse branch pipes 236 . A plurality of injection nozzles 238 are spaced apart from each other by a predetermined interval. The plurality of injection nozzles 238 can be sprayed in a wide range, and the injection angle and the injection distance can be varied according to conditions. Preferably, the plurality of injection nozzles 238 are set to have a free injection angle to efficiently spray the extinguishing liquid.

Hereinafter, an operation process of the automatic fire extinguishing apparatus 100 for an automobile engine room according to a preferred embodiment of the present invention configured as described above will be briefly described. The vehicle engine room automatic fire extinguishing apparatus 100 configured as described above is electrically connected to the vehicle battery and operates by receiving basic power required for operation from the vehicle battery.

5 is a block diagram showing an operation process of an automatic fire extinguishing system in an engine room of a vehicle according to a preferred embodiment of the present invention.

1 to 5 , when a vehicle operation is started, the automatic fire extinguishing apparatus 100 in the engine room of the vehicle including the MCU 300 is also activated. When the operation of the vehicle starts, abnormal signs of the vehicle are always detected by the temperature sensors 112 , smoke sensors 114 , and olfactory sensors 116 installed in the engine room 400 of the vehicle or other locations. perceived as hostile. That is, when a fire occurs due to overheating or collision in a vehicle, the engine is essentially overheated and smoke and a burning smell are generated as a precursor of a fire, so the temperature sensors 112, smoke sensors 114 and olfactory sensor It is to detect these abnormal symptoms through the 116. Information sensed by these sensors is transmitted to the MCU 300 , and the MCU 300 determines whether a fire has occurred in the vehicle based on the detection signal.

If any one of the temperature, smoke and odor information detected by the sensors is abnormal, the MCU 300 determines as an error and deactivates the operation modes of the warning unit 120 and the automatic fire extinguishing unit 200 . keep it as it is

Since abnormal overheating of the vehicle including the engine is set as a preemptive index indicating abnormal signs of a vehicle fire, if the temperature information sensed by the temperature sensors 112 is within a preset appropriate temperature range, even if the smoke sensor Even if the generation of smoke and burning smell is detected through the sensors 114 and the olfactory sensors 116, the MCU 300 determines that it is an error and sets the operation modes of the warning unit 120 and the automatic fire extinguishing unit 200 to an inactive state. keep

On the other hand, when the temperature information sensed by the temperature sensors 112 is out of a preset appropriate temperature range, smoke and odor are additionally detected through the smoke sensors 114 and the olfactory sensors 116 . The MCU 300 determines that a fire has occurred and activates the operation modes of the warning unit 120 and the automatic fire extinguishing unit 200 . In other words, if the temperature of the vehicle rises above a certain temperature before ignition occurs, and smoke and burning smell are detected, it is judged as a fire and the fire is extinguished at an early stage.

In detail, when the MCU 300 determines that a fire has occurred and applies an operation start signal to the warning unit 120 , the warning unit 120 operates the warning sound generator 122 to notify vehicles and people around the accident vehicle. A danger warning signal notifying the occurrence of a fire is provided, and the display 124 is operated to visually notify the driver and occupants of the accident vehicle of the occurrence of the fire, and at the same time, by operating the location information transmitter 126 composed of a GPS transmitter. It notifies the location of the fire in real time wirelessly to the competent authorities connected in advance, such as the police station or fire station, so that necessary measures can be taken.

In addition, when the MCU 300 determines that a fire has occurred and applies an operation start signal to the automatic fire extinguishing unit 200, the solenoid valve 130 is activated and the pump 220 is operated, whereby the pump 220 is The extinguishing fluid contained in the extinguishing fluid container 210 is pumped. At this time, as the check valve 224 installed in the middle of the pump extension pipe 222 is opened, the extinguishing liquid is supplied to the injection pipe assembly 230 side. The extinguishing liquid supplied to the injection pipe assembly 230 flows over the main branch pipe 232, the longitudinal branch pipe 234, and the transverse branch pipe 236, while the longitudinal branch pipe 234 and the transverse branch pipe It is sprayed through a plurality of injection nozzles 238 installed in the middle of the tube 236 to suppress the fire.

When the fire is extinguished, the operation of the automatic fire extinguishing system 100 in the engine room of the vehicle is stopped. The stopper 214 of the extinguishing liquid container 210 from which all the extinguishing liquid is discharged is opened, and the extinguishing liquid is recharged through the extinguishing liquid inlet 212 to be used again. can

As mentioned above, the automatic fire-extinguishing device 100 for an automobile engine room according to the present invention includes the extinguishing liquid container 210 and the pump 220, which are core parts of the automatic fire-extinguishing unit 200 for directly extinguishing a fire. can be easily attached to a narrow place of the engine room 400 . Existing fire extinguishers are in a standardized form of metal, so it is inconvenient to install them in the engine room of a car, and there is a risk of damage to the original form for assembling bolts, etc. On the other hand, according to the present invention, the shape of the digestive fluid container 210 made of a soft plastic material can be conveniently bent or deformed depending on the installation location such as a circle, an oval, a triangle, a square, etc., and a plurality of magnets are arranged on the rear side Thus, it can be conveniently installed even in a small gap between parts installed in the engine room 400 by simply attaching it to a steel material such as a vehicle body using magnetic force.

In addition, since the existing fire extinguisher is metal, there is a risk of large engine thermal expansion due to compressed gas, whereas the fire extinguishing liquid container 210 of the present invention is made of a soft synthetic resin material and has chemical resistance and impact resistance, so damage is prevented. The leakage of digestive fluid can be prevented. In addition, there is an advantage that the manufacturing cost is low compared to the existing metal fire extinguisher, and it can be reused if only the extinguishing liquid is recharged after being used once.

In addition, since the fire extinguishing liquid is sprayed through the injection nozzles of the small pump and injection pipe assembly, there is no risk of high-pressure inert gas filling and leakage, and the fire can be extinguished by efficiently spraying the extinguishing liquid by securing a free injection angle. .

In conclusion, the automatic fire extinguishing system of the engine room of an automobile according to the present invention is equipped with a temperature sensor, a smoke sensor, and an olfactory sensor in order to extinguish a fire at an initial stage to prevent the risk of spreading into a large fire in advance, thereby saving lives. And property damage can be prevented, and the functions of key parts such as the vehicle's control box can be completely preserved.

Although the above has been described with reference to the preferred embodiment of the present invention, those skilled in the art can variously modify and change the present invention within the scope without departing from the spirit and scope of the present invention as set forth in the following claims. You will understand that you can.

For example, the automatic fire extinguishing system of an automobile engine room according to the present invention is difficult to initially extinguish through conventional fire extinguishing equipment when a fire occurs such as an electric distribution board, a high-rise building, a factory, a train with high ignition risk, etc., and the rapid spread of the fire is difficult. It will be readily understood by those skilled in the art that it may have a wide range of applications where it is concerned.

Therefore, the present invention is a device that can completely protect high-risk facilities or important fire targets to be developed in the future from fire, and can provide safety from fire to consumers when applied worldwide. will be.

100: automobile engine room automatic fire extinguishing system 110: sensing unit
112: temperature sensor 114: smoke sensor
116: olfactory sensor 120: warning part
122: beep generator 124: display
126: position information transmitter 130: solenoid valve
200: automatic fire extinguishing unit 210: extinguishing liquid container
216: clasp 218: magnet
220: pump 230: fire extinguishing fluid injection pipe assembly
237: fixed piece 238: spray nozzle
300: MCU 400: engine room
500: bonnet

Claims (5)

As an automatic fire extinguishing device 100 for an automobile engine room,
A detection unit 110 for detecting whether abnormal overheating, smoke generation and odor are generated at the initial stage of the fire in the engine room 400 of the vehicle - The detection unit 110 includes a plurality of temperature sensors 112, a plurality of smoke sensors 114 , and a plurality of olfactory sensors 116 ;
Warning unit 120 for warning the driver, occupants, and the surroundings of the risk of fire in the early stage of the fire in the engine room 400 of the vehicle - The warning unit 120 includes a warning sound generator 122, a display 124, and including a location information transmitter 126;
An automatic fire extinguishing unit 200 for suppressing a fire by spraying a fire extinguishing liquid when a fire occurs in the automobile engine room 400 - The automatic fire extinguishing unit 200 is installed inside the automobile engine room 400 and is made of a soft synthetic resin material. The extinguishing fluid container 210 manufactured in the form of a bag, the pump 220 for pumping the extinguishing fluid stored in the extinguishing fluid container 210 to the outside, and the pump extension pipe 222 of the pump 220 and fluid connection a fire extinguishing liquid injection pipe assembly 230 for circulating and spraying the extinguishing liquid, and a check valve 224 installed in the middle of the pump extension pipe 222 to control the discharge of the extinguishing liquid; and
MCU (Micro Controller Unit) 300 for controlling the operation of the warning unit 120 and the automatic fire extinguishing unit 200 as a whole according to the sensing signal transmitted from the sensing unit 110;
Automatic fire extinguishing system of the engine room of a vehicle, characterized in that it comprises a. The automatic fire extinguishing apparatus of claim 1, wherein a solenoid valve (130) for controlling the operation of the pump (220) is installed between the MCU (300) and the pump (220). According to claim 1, wherein the extinguishing fluid inlet 212 is formed in the upper front position of the digestive fluid container 210, the extinguishing fluid inlet 212 is closed so as to be opened and closed by a stopper 214, the extinguishing fluid container (210) ), a pair of latches 216 are installed at positions separated from the digestive fluid inlet 212 in both lateral directions in the upper front of the digestive juice container 210, and a plurality of magnets 218 are attached to the rear surface of the extinguishing fluid container 210. An automatic fire extinguishing system in the engine room of an automobile. The automatic fire extinguishing system of claim 1, wherein the fire extinguishing fluid injection pipe assembly (230) is installed over a lower surface of a bonnet (300) of the vehicle. 5. The method of claim 4, wherein the pump extension pipe (222) extending from the extinguishing fluid container (210) is fluidly connected to the main branch pipe (232) of the injection pipe assembly (230), the main branch pipe (232) is the A plurality of longitudinal branch pipes 234 extend from the main branch pipe 232 and are disposed in the transverse direction to come to a position close to the rear of the engine room 400 on the lower surface of the bonnet 500 , The longitudinal branch pipes 234 extend toward the front of the engine room 400 on the lower surface of the bonnet 500 , and a plurality of transverse branch pipes 236 are interposed between the plurality of longitudinal branch pipes 234 . ) is disposed extending in the transverse direction of the engine room 400, the main branch pipe 232, the plurality of longitudinal branch pipes 234 and the plurality of transverse branch pipes 236 are each It is fixed on the lower surface of the bonnet 500 by a plurality of fixing pieces 237 installed at intermediate positions thereof, and the plurality of longitudinal branch pipes 234 and the plurality of transverse branch pipes ( In 236), a plurality of injection nozzles 238 are disposed to be spaced apart from each other by a predetermined interval, and the plurality of injection nozzles 238 can be set by varying the injection angle and the injection distance. automatic fire extinguisher.

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