JP2003220153A - Safety device for fire emergency - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a systematic a safety device that has not been available by a conventionally placed carbon monoxide alarm or fire alarm and with which carbon monoxide poisoning in a person suffered at fire disaster can be prevented. <P>SOLUTION: A safety device for fire emergency comprises a carbon monoxide alarm unit 8 comprising an exothermic substance that is built up on a plane glass backing, an insulation membrane, a solid electrolyte membrane, and a carbon monoxide sensor having a first and second electrode on the solid electrolyte membrane that is used and comprising the carbon monoxide sensor, an electric power, a battery electric power control means, a signal detecting means, a signal comparing means, a signal controlling means, and an alarming means, and a wearing mask 13 comprising an oxygen bottle 9 and a cap part having an air cleaning means. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The main object of the present invention is a safety device for saving lives due to a carbon monoxide poisoning accident that causes a serious accident when a fire occurs in a general house, a multi-tenant building or an underground mall. It aims to eliminate the risk of carbon monoxide poisoning accidents associated with breathing while escaping to a safe place by wearing a mask, etc., as well as detecting and alarming a rapid increase in carbon monoxide concentration.

[0002]

2. Description of the Related Art In Japan, the number of fatalities in a year due to a fire accident is about 2,000. It is said that more than half of the deaths are caused by carbon monoxide poisoning that occurs during a fire. There is. This is because, in the early stage of a fire, the concentration of carbon monoxide suddenly rises, and if the concentration reaches 1%, for example, a person will die within one minute in the atmosphere.

Although the detailed results of the investigation into the cause of the fire have not yet been announced, a large number of fatalities have occurred in the building fire in Kabukicho, Shinjuku on September 1, 2001. It is believed to have died in a carbon monoxide poisoning accident.
Carbon monoxide is generated by incomplete combustion of combustible materials. The general image is that the source of combustion equipment is various household appliances, but considering the risk of accidents, the risk of carbon monoxide during a fire is actually higher. . Carbon monoxide is a toxic gas called a silent killer that is highly colorless and odorless and is highly dangerous before it is noticed.

[0004] In general houses, an incomplete combustion (or carbon monoxide) alarm device that detects carbon monoxide and informs it by ringing or LED blinking has not been widely spread while the need for it is being screamed. In the city gas industry, a three-function type gas leak alarm that integrates the three functions of a carbon monoxide sensor and a fire sensor for reporting the temperature associated with a fire in the case of a gas leak alarm is becoming popular. However, on the other hand, in the LP gas industry, the installation location of the gas leak alarm and the incomplete combustion alarm is different due to the difference in specific gravity of the gas, etc. Currently, there are 100 incomplete combustion alarms on the domestic market.
It is operated by a V power supply and is used by being installed on the wall surface or ceiling surface. The alarm device of 100V power supply cannot operate at the time of a power failure that is likely to occur in an emergency such as a fire, and it is naturally impossible to carry an incomplete combustion alarm device and constantly monitor the carbon monoxide concentration of the atmosphere.

The incomplete combustion alarm has a high degree of freedom in installation,
Battery-powered devices that have the advantage of being carried have been proposed for special purposes, but to be used as safety alarms, the battery life is extremely short and there are problems with sensor reliability. It has not reached the practical range.

Further, it is required to install a smoke detection type fire alarm in an underground mall or a multi-tenant building, but there is a problem in reliability of operation such as giving a false alarm even with cigarette smoke or water vapor.
In extreme cases, the power may be removed and not working.

These fire alarms are used only for the purpose of detecting smoke and do not have a built-in carbon monoxide sensor.

Further, smoke detection type fire alarms and carbon monoxide alarms have only the function of issuing an alarm, and the function of transmitting the alarm information to a fire station or the like by system development and fire extinguishing equipment such as sprinklers. Even if it is considered to be linked with the above, it is not considered to save a person who encounters a fire in the field from a carbon monoxide poisoning accident.

Therefore, there is almost no proposal that considers the purpose of the present invention to provide highly sensitive and reliable notification of carbon monoxide during a fire so that a person can evacuate to a safe place.

The technology of the carbon monoxide sensor that plays a central role in the function of the incomplete combustion alarm will be described. As a conventionally proposed chemical sensor for detecting carbon monoxide, an electrode that absorbs and oxidizes carbon monoxide is provided in the electrolytic solution, and the carbon monoxide concentration is detected from the current value proportional to the carbon monoxide concentration. Method (constant-potential electrolysis gas sensor), an N-type semiconductor oxide sensitized by adding a trace amount of a metal element such as a noble metal, for example, a sintered body type such as tin oxide is used, and these semiconductors are combustible gas. A method of detecting gas by utilizing the characteristic that electric conductivity changes when contacting (semiconductor gas sensor), a pair of a platinum fine wire of about 20 μm with alumina loaded with noble metal and one without. There is known a method (catalytic combustion type gas sensor) of detecting a difference in heat generated when a combustible gas is brought into contact with this element to carry out a catalytic oxidation reaction by using a comparative element and performing a catalytic oxidation reaction.

For example, [Reference 1] Supervision by Toyoaki Omori: "Sensor Practical Encyclopedia": Fuji Techno System [Chapter 14 Basics of Gas Sensors (Masaki Takeshi Haruta), P112-130]
(1986) for a detailed description.

Further, a zirconia electrochemical cell is constituted,
An electromotive force type solid electrolyte type carbon monoxide sensor for detecting carbon monoxide by forming a platinum / alumina catalyst layer on one side of an electrode has also been proposed [eg, H.OKAmOTO, H.OBAYASI].
AND T. KUDO, Solid State Ionics 1, 319 (198
0)].

The principle of this solid electrolyte type carbon monoxide sensor is that a kind of oxygen concentration battery can be formed on the electrode on the catalyst layer side and the electrode on the bare side. Oxygen reaches the electrode on the catalyst layer side as it is, On the bare electrode, both oxygen and carbon monoxide reach, whereas carbon oxide does not reach
This carbon monoxide reduces oxygen, an oxygen concentration cell is formed between both electrodes, and an electromotive force output appears.

[0014]

The object of the present invention is that the conventional alarm device has a function of only an alarm when there is no power outage, whereas the present invention keeps the alarm continuous even when a power outage occurs. However, even in life-threatening critical situations, the incomplete combustion alarm unit can be carried along with a protection function that can survive a high carbon monoxide concentration environment and escape safely.

In order to realize this, it is required that the carbon monoxide sensor not only be capable of battery operation but also have high-speed response and continuous output in an emergency situation of escape. . A carbon monoxide sensor that can realize both of these functions in a well-balanced manner has not been proposed.

The conventional means for reducing the power consumption of the conventional carbon monoxide sensor is the intermittent operation, but the intermittent combustion is theoretically impossible because the catalytic combustion type utilizes the combustion equilibrium of combustible gas.

In the semiconductor type, basically, the operation at the measured temperature, which is the high temperature side operation and the low temperature side operation, is repeated. This is because the sensitivity and selectivity of carbon monoxide are maximum at 100 ° C or less, so if set near that, the resistance value will change significantly due to the influence of water vapor etc. This is because the heat treatment in is essential. Therefore, in principle, the output of the sensor becomes a discrete value, and it is impossible to make a high-speed response that is in vain. In an environment where carbon monoxide is not generated, skipping detection is convenient and does not hinder battery operation, but in a situation where there is a fire and the concentration rises sharply, continuous operation is not reliable and reliable. Significantly impairs sex. Also, in order to save power, if the sensor is thinned and miniaturized to achieve low power consumption, the power consumption is large to heat the surrounding air equipped with the sensor, and the battery life is quite long. Cannot be guaranteed and low power consumption cannot be achieved. Therefore, it is driven by AC100v, but this has the limitation of the outlet, and if a fire and a power failure occur in an emergency, it will stop operating and cannot be used at an important time.

If the battery operates, the problem of alarm notification at the time of power failure is solved, and when evacuating in the case of a fire, a safe place with a low carbon monoxide concentration may be searched for and temporary evacuation may be performed until rescue. It will be possible. In addition, even if you want to escape to a safe place by yourself, you can safely escape by carrying a carbon monoxide alarm, but with the conventional technology, sufficient low power consumption for battery operation and high reliability. The continuous alarm operation at the time is not compatible.

[0019]

In order to solve the above problems, in a fire emergency safety device of the present invention, a carbon monoxide sensor, a battery, a battery power control means, a signal detection means and a signal comparison means are provided. A carbon monoxide alarm unit including signal control means and alarm means, and a wearing mask including a lid portion including an oxygen cylinder and air purifying means are provided. The carbon monoxide alarm unit and the carbon monoxide purification gas mask are provided.

During a fire, a large amount of carbon monoxide is generated due to the initial combustion of paper, fibers, wood, building materials and the like. It is known that carbon monoxide is the most common cause of fatal accidents during a fire.

In the carbon monoxide alarm unit according to the present invention, the carbon monoxide sensor is controlled by the battery power source to the operating condition necessary for driving by the battery power control means, for example, the operating temperature, and the carbon monoxide sensor can detect the carbon monoxide. Has become. When there is almost no carbon monoxide, it operates slowly and intermittently to save battery consumption, but when carbon monoxide is generated, the signal of the carbon monoxide sensor detects the signal mainly by an operational amplifier. The signal is amplified by the means and compared by the signal control means mainly composed of the microcomputer with the set value and the signal comparison means, and when the signal level is equal to or higher than the set value,
The alarm means gives an alarm for the generation of carbon monoxide.

In this state, the signal control means brings the emergency mode into, for example, a continuous operation state. In this state, the carbon monoxide sensor can be constantly monitored.

In the present invention, since the solid electrolyte type carbon monoxide sensor is used, continuous operation with quick response is possible, and the thin film can be made small in size and can be instantly started up, and the heat transfer loss is taken into consideration. A battery drive operation can be performed by performing a pulse drive operation in the order of milliseconds.

A person who notices the generation of carbon monoxide by the alarm means immediately goes to a fire emergency safety device, and an oxygen cylinder integrated mask equipped with an air purifying means on the lid, or
While wearing a carbon monoxide purification gas mask and carrying a carbon monoxide alarm unit, you can evacuate to a safe place where there is no risk of carbon monoxide poisoning.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A fire emergency safety device according to claim 1 of the present invention comprises a carbon monoxide sensor, a battery, a battery power control means, a signal detection means, a signal comparison means, a signal control means and an alarm means. A carbon monoxide alarm unit consisting of the above, and an wearing mask consisting of an oxygen cylinder and a lid portion provided with air purifying means.

The carbon monoxide sensor is a DC-power source for driving a battery power source and a heating element provided in the carbon monoxide sensor.
It is kept operable by the function of the battery power control means including a DC converter. Since the carbon monoxide sensor is ultra-small and formed of a thin film, it operates with low power consumption. Further, in order to suppress battery consumption, the signal control means makes the operation of the sensor a pulse drive type, for example, control energization is performed for 10 milliseconds, and data is taken in from the signal detection means for a predetermined time when the sensor signal is stabilized by energization. The operation is intermittently repeated such as once every 30 seconds. As a result, intermittent sensor signal output data such as once every 30 seconds can be obtained, but by concatenating these in time series, the power consumption is small, and carbon monoxide in the environment where the carbon monoxide alarm unit is installed. The transition of concentration can be grasped. When the output of the carbon monoxide sensor exceeds a preset value incorporated in the signal control means, the signal comparison means compares the outputs, and the alarm means is activated under the control of the signal control means.

With this, together with a visually recognizable alarm such as blinking of the LED or the liquid crystal display device, a sound of an alarm or a sound is used to inform the people around that the carbon monoxide concentration has reached the alarm level. As a result of this, a person who knows a sudden increase in the concentration of carbon monoxide immediately goes to the fire emergency safety device,
Remove the lid of the oxygen cylinder, attach the mask, and push the nozzle of the cylinder to suck oxygen. A small amount of air is taken in from the atmosphere at the same time as oxygen, but the air containing carbon monoxide and smoke in the atmosphere is purified by the provided air purifying means and is safe. If the carbon monoxide alarm unit is designed to be removable, it can be carried at the same time. If you evacuate with this, you can know the concentration of carbon monoxide in the environment during the evacuation, and you can remove the mask when you are in a safe place. In this way, it is possible to evacuate safely.

A fire emergency safety device according to claim 2 of the present invention comprises a carbon monoxide sensor comprising a carbon monoxide sensor, a battery, a battery power control means, a signal detection means, a signal comparison means, a signal control means and an alarm means. It comprises an alarm unit and a carbon monoxide purification gas mask. In this configuration,
The carbon monoxide alarm unit is similar to the previous claims.
As described in the preceding paragraph, when an alarm is issued to notify an increase in the concentration of carbon monoxide, a person should go to a fire emergency safety device and immediately put on a carbon monoxide purification gas mask. Carry a carbon monoxide alert unit to evacuate and escape the challenges of carbon monoxide poisoning.

In the fire emergency safety device according to claim 3 of the present invention, as the carbon monoxide sensor, a heating element, an insulating film, a solid electrolyte film, and the solid electrolyte film are laminated on a flat glass substrate. It is constructed using a carbon monoxide sensor having first and second electrodes on top.

The operation of this carbon monoxide sensor will be described. This sensor is formed on a glass substrate such as quartz by using a thin film forming process such as sputtering or electron beam evaporation.

By energizing the heating element, the solid electrolyte element
It is heated to the temperature of 250-500 ° C required for its operation. Since an insulating film is formed on the surface of the heating element, there is a concern that electrons may flow into the solid electrolyte and react with the solid electrolyte, and the electric field effect of the heating element may appear in the sensor output of the solid electrolyte. Absent. The solid electrolyte and the first electrode and the second electrode formed on the surface of the solid electrolyte are brought into the operating state by heating the heating element with electricity. The first electrode and the second electrode are different in the adsorption ability of oxygen and carbon monoxide and the catalytic oxidation ability of carbon monoxide.

In this situation, when placed in an environment of air that does not contain a gas to be detected such as carbon monoxide,
The oxygen concentration reaching the interface between the electrode and the solid electrolyte shows an electromotive force output corresponding to the difference between the oxygen adsorption capacity of each electrode and the diffusion capacity of the solid electrolyte into the three-layer interface which becomes the oxygen uptake part.
This point is set as the zero point. This point depends on the combination of the first electrode and the second electrode used. On the other hand, in the environment of air containing a gas to be detected such as carbon monoxide, in the case of air containing no carbon monoxide depending on the gas adsorption characteristics of the first electrode and the second electrode and the catalytic oxidation ability. The output difference based on the oxygen concentration difference between electrodes related to the carbon monoxide concentration from the equilibrium electromotive force output is shown.

In the present gas sensor, since a glass-based heat-resistant substrate is used, they have a common thermal shock resistance coefficient of 200 ° C. or more, which is resistant to thermal shock. When the body is heated, the substrate has the property of withstanding its thermal shock. On the other hand, since the solid electrolyte element portion is a thin film, thermal stress is unlikely to occur and is resistant to thermal shock. In addition, since this type of substrate is a low thermal conductivity material at the same time, it is difficult for the heat to transfer to the substrate itself due to its heat transfer, and the heat transfer to the element portion formed on it during the pulse drive operation is dominant. It has the advantageous properties of being carried out. The basic idea for power saving is to operate an electromotive force type solid electrolyte element by inputting to a heating element for a sufficiently short time of several milliseconds, which is necessary for driving the solid electrolyte element part by pulse driving. The idea is to secure the necessary energy to reduce excess air and energy loss for heating the substrate.

The problem is whether the information relating to the concentration of the gas to be detected can be grasped from the electromotive force type solid electrolyte element by inputting energy for a short time of the order of several milliseconds. The inventors have discovered. That is, for pulsed repetitive power input to the heating element,
The average electromotive force value indicated by the electromotive force type gas sensor is collected in time series within an arbitrary minute time before or after the interruption time as a starting point. The meaning of this sampling timing is intended to maintain the temperature required for the operation of the solid electrolyte element during this period. In this way, by collecting the average electromotive force value indicated by the electromotive force type gas sensor in time series, the gas concentration change in the environment where the sensor is placed can be calculated based on the discontinuous and scattered sampling data. The inventors have found that they can be sufficiently detected. Conventionally, in an electromotive force type gas sensor using a solid electrolyte,
There is no example in which gas concentration information is obtained by connecting pulse driving operations on the order of milliseconds in this manner.

Immediately after the heating element is energized, since the temperature is low, the impedance between both electrodes on the solid electrolyte is high, and the signal is buried in noise. As the temperature rises, a voltage output based on the electromotive force appears as the temperature rises. The temperature rise operation is repeated at appropriate intervals at appropriate energization timings, and the electromotive force output between both electrodes is collected at an arbitrary minute time within a certain temperature range where the solid electrolyte element is heated or cooled. When the concentration of the detected gas is zero, a constant value is held, but as the concentration of the detected gas increases, the electromotive force output value increases in relation to the value of the concentration of the detected gas. As a result, the gas sensor operation with extremely low power consumption, that is, the battery-driven operation becomes possible.

All other constituent elements are the same as those in the previous embodiment and will not be described.

A fire emergency safety device according to claim 4 of the present invention is used as a carbon monoxide sensor, which is laminated on a flat glass substrate to form a heating element, an insulating film, a solid electrolyte film, and the solid electrolyte film. A carbon monoxide sensor comprising a pair of electrodes and a porous oxidation catalyst on one of the electrodes is used.

The basic operation of the carbon monoxide sensor will be described below. Even if it is a short-time pulse operation, it is considered that the basic principle of the operation is not different from that of the conventional balanced operation. Since an insulating film is formed on the surface of the heating element, there is a concern that electrons may flow into the solid electrolyte and react with the solid electrolyte, and the electric field effect of the heating element may appear in the sensor output of the solid electrolyte. Absent.

The solid electrolyte, the pair of electrodes formed on the surface of the solid electrolyte, and the porous oxidation catalyst layer formed on the electrode surface of one side of the solid electrolyte by heating by heating the heating element are sufficient to exert their functions. It becomes operational. In such an operating state, under the condition that the temperature of the solid electrolyte element is higher than a certain temperature necessary for operation, this is the last time when the energy input is continuously applied, that is, the energy input is stopped. The condition is either immediately before or during the time when the input is stopped and the element is cooling down. As a result, the timing at which data is to be collected can be set either before or after the starting point is when the pulsed power supply to the heating element is intermittently operated and the intermittent energization of the heating element is interrupted. It means that it is within a minute time. In this situation, the porous catalyst layer has a function of sufficiently transmitting oxygen to the electrode portion and a function of completely oxidizing the reducing gas such as carbon monoxide to prevent it from reaching the electrode surface. Thus, when used in the atmosphere, the electrode provided with the porous catalyst layer acts as a reference electrode which maintains a constant high oxygen concentration almost always.

In this situation, when placed in an environment of air that does not contain a gas to be detected such as carbon monoxide,
Since the oxygen concentrations reaching the pair of electrodes are almost equivalent, no electromotive force is generated between the electrodes. On the other hand, in an environment of air containing a gas to be detected such as carbon monoxide, the electrode provided with the porous catalyst layer maintains a high oxygen concentration, while the electrode not provided with the porous catalyst layer is bare. On the electrode side, a reducing gas such as carbon monoxide reaches the electrode surface, and as a result, adsorbed oxygen is reduced, and the electrode surface is in a low oxygen state. Therefore, a chemical potential difference is generated between both electrodes, and this becomes a driving force to generate an electromotive force between both electrodes. Depending on the operating conditions, this electromotive force shows a carbon monoxide concentration dependency that is not necessarily the Nernst type, but since it shows an electromotive force output value for a constant carbon monoxide concentration, the carbon monoxide concentration can be calculated from this electromotive force output value. Can be detected.

By using the flat glass-type heat-resistant substrate, heat transfer to the substrate itself is small, and the temperature of the solid electrolyte element portion can be effectively raised in a short time. Further, since the thin film laminated structure is adopted on the flat glass-type heat-resistant base material, the micro-fabrication process used for semiconductor manufacturing can be applied, and the stable quality sensor can be mass-produced at low cost.

A fire emergency safety device according to a fifth aspect of the present invention comprises a photoelectric smoke detection sensor in addition to the carbon monoxide alarm unit.

The photoelectric smoke detection sensor has a photocoupler in which a pair of LEDs and a photodiode are combined, and an air inflow path is formed in the optical path. In order to eliminate the effect of stray light on the photo coupler, the inflow path and photo coupler are placed in the black detection system container. The air flow path is configured so that the air flows in well and the larvae of spiders and cockroaches do not enter. The operation is to detect smoke by reducing the light intensity of the photocoupler due to smoke entering the flow path, and it is possible to detect fire smoke with high sensitivity.
Since the photoelectric smoke detection sensor is provided, it is possible to detect the generation of smoke during a fire. Although a smoke sensor alone can provide a fire alarm, it often malfunctions in an environment filled with water vapor or cigarette smoke, while it has a carbon monoxide sensor at the same time. In addition to this, by detecting carbon monoxide, it is possible to provide an extremely accurate fire alarm. The action of the person after the notification of the fire is the same as that of the previous configuration.

A fire emergency safety device according to a sixth aspect of the present invention comprises an AC power source means, a rectifying means, and a power source switching means in addition to the carbon monoxide alarm unit.

This is equipped with two types of power sources, a battery and an AC100V, and is normally operated by a rectifying means with an AC100V power source, but in an emergency, it is used by switching to a battery by the power source switching means. . The battery used here may be a primary battery or a secondary battery. If the alarm level of carbon monoxide is reached during a fire, immediately switch to battery power. Normally, you don't have to worry about when to replace the battery because it doesn't drain the battery.

Since the capacity of the battery only needs to be taken into consideration in the case of an emergency operation, there is an advantage that the device can be made compact because a battery having a small capacity is sufficient. The other operations are the same as those in the previous section, so the description thereof will be omitted.

A fire emergency safety device according to a seventh aspect of the present invention comprises an illumination lamp in addition to the carbon monoxide alarm unit.

In the case of this configuration, since the illumination lamp can be used in an emergency, it is possible to evacuate safely without hesitation even in the environment of blackout at night. The other operations are the same as those in the previous section, so the description thereof will be omitted.

A fire emergency safety device according to claim 8 of the present invention is configured to include a communication means in addition to the carbon monoxide alarm unit.

In this configuration, the alarm information can be notified to a distant place by the communication means. It can also communicate with the outside equipped with a receiver. Also, by carrying communication means, it is possible to notify the location of people to the outside in case of fire. Also in this configuration, other operations are the same as those in the previous section, and therefore description thereof will be omitted.

[0051]

Embodiments of the present invention will now be described with reference to the drawings.

(Embodiment 1) FIG. 1 is a perspective view showing the appearance of an emergency fire safety system according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of the control system of the carbon monoxide alarm unit. FIG. 3 is a perspective view showing how to use the same fire alarm device. FIG. 4 is a cross-sectional view of the lid portion of the oxygen gas cylinder. In FIG. 1, reference numeral 8 is a carbon monoxide alarm unit, and the fire alarm device comprises a carbon monoxide alarm unit portion 8 and a cylinder housing portion accommodating an oxygen gas cylinder 9. In FIG. 1, a lamp unit 10 of an alarm display unit, an alarm ringing unit 11 for ringing at the time of an alarm, and a gas inlet 12 to the carbon monoxide sensor are provided. The carbon monoxide alarm unit 8 can be carried by detaching only the upper unit 8 at the portion A. In FIG. 1, the emergency fire safety device and the carbon monoxide sensor unit are circular in shape, but they can be shaped into any appropriate shapes in designing. Further, this fire emergency safety device is provided with a nozzle connecting portion 15 which is provided at a lower portion of the lid portion 13 which is attached when a fire occurs so as to give a function of a mask and which can be tightly connected to the nozzle portion 14 of the oxygen gas cylinder 9. In an emergency, the alarm issued by the carbon monoxide alarm unit rushes to the place where the emergency safety device for this fire is placed, and as shown in Fig. 3, put the lid on the cylinder effectively and put it on your mouth as a mask. Since this cylinder is a push can type, while pushing the nozzle with a finger, oxygen gas is ejected to ensure safe breathing. It is also possible to evacuate while measuring the concentration of carbon monoxide on the spot while carrying the carbon monoxide alarm unit. In the event of an emergency, the carbon monoxide alarm unit goes into continuous operation mode and can instantly measure the carbon monoxide concentration in its atmosphere. Therefore, the oxygen cylinder mask can be removed by evacuating to a safe place where the alarm and the like stop sounding based on the measurement of the carbon monoxide concentration at that place. In Figure 3,
The detached carbon monoxide alarm unit 8 is hung from the neck with a string.

The oxygen cylinder applicable to the present invention is 99.9.
%, A high-purity product may be used, or the balance of 20% may be nitrogen air. As a matter of course, it does not contain a trace amount of harmful substances as impurities.

An outline of the operation of the carbon monoxide alarm unit will be described with reference to FIG. In FIG. 2, 1 is a carbon monoxide sensor. As the carbon monoxide sensor 1, an electromotive force type sensor using a solid electrolyte is assumed. This is because stable operation can be expected even in a relatively harsh environment such as a fire and continuous operation can be performed quickly in an emergency. In order to operate the carbon monoxide sensor 1, it is necessary to heat up to the operating temperature of the sensor. With carbon monoxide sensor,
It is necessary to apply electric power to the heating element section made of a resistor to raise the temperature to an operable temperature. To raise the temperature, the battery voltage is set to DC-D by the battery power control unit 3 for the battery 2
It is necessary to boost the voltage with a C converter to an appropriate voltage.
Further, the resistance temperature characteristic of the heating element included in the carbon monoxide sensor 1 is used to estimate the resistance value from the applied voltage and the current value, and the heating element temperature is controlled so that the battery power control means can obtain a constant temperature. To control. Further, the signal control means having a microcomputer as a main part controls the pulse energization time for power saving by the battery power control means. In addition, a signal output appears from the carbon monoxide sensor in a state where the temperature has reached an appropriate temperature due to electric heating of the heating element. The electromotive force output from the carbon monoxide sensor is amplified by the signal detection means of 4. The output signal from the carbon monoxide sensor is stored in the signal control means 6 as a time-series scattered value at an appropriate timing determined by the signal control means 6. Reference numeral 4 amplifies the output from the electromotive force type carbon monoxide sensor by a differential operational amplifier or the like. A plurality of operational amplifiers can be used as needed to perform amplification in multiple stages. While comparing the signal value preset in the signal control means 6 mainly composed of the microcomputer and the output signal detected by the sensor by the signal comparison means 5 mainly composed of the differential operational amplifier, the set value was exceeded at a certain timing. In this case, the alarm means 7 sounds an alarm.

The alarm by the alarm means 7 gives an alarm under the condition that the concentration of carbon monoxide exceeds a predetermined set value, but also when the output of the battery, which is the operating power source, decreases, or when the carbon monoxide sensor is broken or otherwise abnormal. A function for issuing an alarm can be added. Further, in order that even a person who first encounters the alarm can easily identify the various alarm types, it is possible to issue a clear alarm corresponding to the alarm type, for example, by voice.

FIG. 4 is a sectional view of the lid portion of the oxygen cylinder. In FIG. 4, the nozzle connecting portion 14 of the cylinder and the nozzle connecting portion 15 of the mask insert the nozzle and stop at the position of the stopper. A carbon monoxide purifying catalyst 18 and mechanical filters 19 and 20 for avoiding the inhalation of smoke are arranged in the air suction passage on the inner surface of the lid of the cylinder.

A person puts his mouth on the opening 21 and uses it.
Consider soft materials, such as rubber and thermoplastic elastomer, for the places that come into contact with human skin inside. The intake air from the cylinder is directly sucked by the flow of B, but a part of the discharge and suction of the exhaled air is taken in and out like C in the bypass passage.
As a result, the oxygen in the cylinder is diluted with air without being contaminated with carbon monoxide, and suction at high oxygen concentrations is avoided. In addition, you can breathe safely without feeling pressured by the suction of oxygen from the cylinder. As the carbon monoxide purification catalyst used here, various existing catalysts having a carbon monoxide purification ability at room temperature can be applied. For example, manganese,
Various catalysts such as hopcalite catalysts using complex metal oxides of copper, silver, cobalt, etc. and their improved products, as well as palladium-carbon catalysts and their improved catalysts, catalyst systems in which fine particles of gold are carried by iron oxide, and their improved systems. Is applicable. It is desirable to use a granulated product that is less likely to cause pressure loss and secondary contamination due to particle powder, or one in which the granulated product is sandwiched between nonwoven fabrics. Various types of mechanical filters such as non-woven fabrics of resin or metal and dielectric filters can be applied. Further, the structure of this flow path is designed and used so as to have an appropriate pressure loss in consideration of the resistance at the time of suction of a person.

(Embodiment 2) FIG. 5 is a perspective view showing the appearance of an emergency fire safety system according to an embodiment of the present invention.

In FIG. 5, reference numeral 8 is a carbon monoxide alarm unit. A carbon monoxide gas mask 22 is arranged below the emergency safety device for fire. The handle 23 on the lower side of the safety device can be opened to take out and put on the carbon monoxide gas mask 22. Further, like the previous embodiment, the upper carbon monoxide alarm unit can be detached and carried like A. The operation of the carbon monoxide alarm unit 8 is similar to that of the previous embodiment. If a person who notices the occurrence of carbon monoxide in a fire due to the alarm operation of the carbon monoxide alarm unit 8 immediately goes to the place where this device is installed, put on a carbon monoxide gas mask and go to a safe place. You can evacuate.

FIG. 6 shows a carbon monoxide purification gas mask 22 arranged at the tip of the carbon monoxide gas mask of FIG.
FIG. 3 is a cross-sectional view of a main part of a filter section generally called an absorption can. In FIG. 6, reference numeral 24 is a filter case, which is provided with a carbon monoxide purification catalyst 24 and mechanical filter portions 26 and 27, and is held by a filter holder 28. The mechanical filter is used for the purpose of filtering and trapping smoke or the like floating in the air so as not to be sucked. The case 24 of the absorption can is formed of a resin molded product. The pressing portion of the filter holder 28 is formed by combining a mesh filter and the like, and can be fixed after being effectively filled with the catalyst by a method of twisting and fixing it later. The carbon monoxide purification catalyst portion 25 is formed by using the same material as that described in the previous embodiment and granulating it into an appropriate shape. In order to prevent the catalyst granulation product from slipping, a catalyst is used such as a partition placed in the middle of the catalyst packing layer. The material of the mechanical filter is also as described in the previous embodiment.

(Embodiment 3) FIG. 7 is a conceptual diagram of a cross section of a carbon monoxide sensor which is the center of a carbon monoxide alarm unit which is a main part of a fire emergency safety device according to an embodiment of the present invention. Is. In FIG. 7, 29 is a glass-based flat base material. The heating element 30 is provided on the base material, and the heating element 30 is provided.
A solid electrolyte layer 32 is formed with an insulating film 31 formed by stacking the layers above. Further, on the solid electrolyte 32,
A first electrode 33 and a second electrode 34 are formed.

Although not shown in FIG. 7, the gas sensor element portion needs a lead wire joining terminal portion and a lead wire of the heating element 30 for supplying electric power to the heating element 30. Similarly, a lead wire joining terminal portion and a lead wire for taking out a signal output based on the mutual chemical potential difference between the first and second electrodes 35 and 36 are also required. Since platinum-based metal is used for the heating element 30, it is desirable to use platinum-based metal for the lead wire and the lead wire connecting terminal portion. The lead wire and the terminal may be joined by any known method such as welding, brazing, and fixing by baking using a platinum paste.

The glass-based flat substrate 29 will be described. In the present embodiment, the glass-based heat-resistant substrate is used because these substrate materials have characteristics suitable for pulse driving operation. One of the substrates used for pulse drive operation is to have a large thermal shock resistance coefficient.
Next, it has a low thermal conductivity and a small difference in coefficient of thermal expansion from the solid electrolyte and the like. Since no substrate is satisfactory in all aspects, it is important to have a large coefficient of thermal expansion and a low thermal conductivity. Even if the coefficient of thermal expansion is slightly different, since the thickness of the solid electrolyte element is thin and thin, a slight difference can be absorbed. The glass-based heat-resistant base material satisfies this condition.

The thermal shock resistance coefficient shows a critical temperature difference that is difficult to be destroyed by thermal stress when heated instantaneously. A material having a large thermal shock coefficient is less likely to be damaged by thermal stress. Alumina has a thermal shock coefficient of about 50 ° C.

A material having a large thermal shock coefficient is selected as a base material because mullite, alumina having a thermal shock coefficient of 200 or less as a result of preliminary comparative evaluation of various base materials,
Experimental facts and glass-based heat-resistant substrates that were not damaged by zirconia (3Y) in the case of glass-based heat-resistant substrates such as quartz glass with various thermal shock coefficients of 3000 ° C and various cermets and crystallized glasses The material has a thermal conductivity
It is based on the fact that it is extremely small, 1.3 W / m / K or less.
A thermal shock resistance of not more than 200 ° C. is required in order to drive the solid electrolyte device in a short time of the order of milliseconds 250 to 5
This is one base material condition that does not cause cracks when the temperature is raised to 00 ° C. As a condition for the glass-based heat-resistant base material, it is important to control the surface roughness. This effect is related to the effect of optimizing the morphology of the solid electrolyte membrane-electrode interface related to the performance of the electromotive force type gas sensor and the effect of absorbing the difference in thermal expansion coefficient between the base material and the solid electrolyte membrane. To do. The surface roughness is preferably such that the 10-point surface roughness Rz is in the range of 0.1 to 3 μm. A special polishing treatment is required to control the surface roughness within this range.

Materials such as quartz glass, crystallized glass, and glazed ceramics which satisfy the above conditions have a small thermal conductivity in addition to excellent thermal shock characteristics, so that heat transfer to the lower side of the substrate is small, It is desirable because it has a characteristic that heat is not released to the base material side and heat is effectively transmitted to the element side. In these base materials, the heating area for the heating time of about 10 milliseconds is the area of about 30 μm from the heating element, so that efficient pulse heating operation for heating only the limited area of the substrate can be performed.

As the base material, quartz glass has the characteristics desirable for the gas sensor of the present invention. Among the characteristics of quartz glass, the inclusion of alkali is related to the heat resistance and thermal shock resistance, and the characteristics of the insulating film and element formed by laminating. The content of the alkali is indicated by the content of the hydroxyl group, but in the quartz glass used in the present invention, the hydroxyl group is 0.
It should not exceed 2% and is preferably 1000ppm.
The following hydroxyl group-containing one is used.

The heating element 30 is formed by forming a film of platinum or an alloy thereof on a substrate to form a zigzag pattern so as to have a predetermined resistance value. In order to improve the adhesion with the platinum-based heating element metal, it is desirable to form a thin film of chromium or titanium between the base material and the heating element metal before use. Platinum-based heating element metals do not form stable oxides, so they bond well to platinum-based metals and other substrates such as quartz glass, and form stable oxides with the substrates to ensure firm adhesion. It is desirable to use it even if a thin film of chromium or titanium is formed. The desirable film thickness range of these undercoat treatments is 25 to 500 Å. Below 25 Å, there are problems with the film forming surface such as the film thickness becoming non-uniform. Further, when it exceeds 500 Å, the oxide grows, interdiffuses with platinum, or reacts with platinum, so that the effect of improving the adhesion is impaired.

The film forming method of each functional film applied in the present invention is as follows.
Either a wet method using a spinner or screen printing or a dry method such as electron beam evaporation or sputtering can be applied. Also, although common to each functional film, patterning to a predetermined pattern is a method of forming a film using a metal mask, a lift-off process using a patterned metal such as aluminum or copper, or an etching process by photolithography. Any of the reactive ion etching method and the like can be applied.

As the insulating film 31, a thin film of silica, alumina, silicon nitride, polysilicon or the like is used. They may be appropriately combined in consideration of thermal expansion. The film thickness is used in the range of 0.5 μm to several μm. If the film thickness is further increased, the risk of cracking in the insulating film increases due to the difference in thermal expansion.

The solid electrolyte membrane 32 is made of an oxygen ion conductor such as yttria or scandia stabilized zirconia, a complex oxide oxygen ion conductor such as bismuth oxide-molybdenum oxide, cerium oxide-samarium oxide or a fluoride ion conductor. Any of various hydrogen ion conductors can be applied. Depending on the type of conductor, there is a surface that can be operated at low temperature, but an oxygen ion conductor is preferable from the viewpoint of stability against water vapor.

The first and second electrodes 33, 34 formed on the surface of the solid electrolyte membrane 32 are made of silver, platinum, palladium, in view of adsorption of oxygen ions and mobility to the solid electrolyte.
Ruthenium and metal oxides, especially perovskite-type complex oxides and pyrochlore-type complex oxides, are applicable, but platinum, perovskite-type oxides, etc. are preferable from the viewpoint of oxygen uptake characteristics into solid electrolyte and heat resistance. desirable.

The perovskite type oxide is mainly composed of lanthanum at the A site and iron, manganese, copper at the B site.
One using one kind of metal selected from the group of nickel, chromium and cobalt, one in which each A and B site is partially replaced by a rare earth element or a transition metal, or B site is gold,
It is desirable to partially replace it with a noble metal such as palladium or rhodium. With these combinations, the perovskite-type oxide has an extremely large number of defects in lattice oxygen and is in an active state, so that oxygen uptake into the solid electrolyte interface is accelerated. That is, it is expected that the operation will be performed at a lower temperature and the responsiveness will be improved. These electrodes are effectively combined and used.

When the heating element 30 is energized for a short time in a pulsed manner, the solid electrolyte element is instantaneously heated to 250
Heat to a temperature of ~ 500 ° C. Since an insulating film is formed on the surface of the heating element, there is a concern that electrons may flow into the solid electrolyte film and react with the solid electrolyte, and the electric field effect of the heating element may appear in the sensor output of the solid electrolyte. There is no. The solid electrolyte membrane and the first electrode and the second electrode formed on the surface of the solid electrolyte membrane are put into operation by the pulsed electric heating of the heating element. The first electrode and the second electrode are different in the adsorption ability of oxygen and carbon monoxide and the catalytic oxidation ability of carbon monoxide.

By such an operation, an operation with extremely low power consumption becomes possible, and a stable operation with a battery for a long period of time becomes possible.

In this situation, when placed in an environment of air that does not contain a gas to be detected such as carbon monoxide,
The oxygen concentration reaching the interface between the electrode and the solid electrolyte shows an electromotive force output corresponding to the difference between the oxygen adsorption capacity of each electrode and the diffusion capacity of the solid electrolyte into the three-layer interface which becomes the oxygen uptake part.
When used as an alarm device, set this point as the zero point.

On the other hand, in an environment of air containing a gas to be detected such as carbon monoxide, air that does not contain carbon monoxide depending on the gas adsorption characteristics of the first electrode and the second electrode and the catalytic oxidation ability. The output difference based on the oxygen concentration difference between electrodes related to the carbon monoxide concentration from the equilibrium electromotive force output in the case of is shown. This output becomes positive or negative depending on the combination of electrodes, but the absolute value of the output difference from the point determined as the zero point becomes a value related to the carbon monoxide concentration. Therefore, the concentration of the detected gas such as carbon monoxide can be known from the absolute value of the output difference, and an alarm operation or the like can be performed when the concentration of carbon monoxide or the like exceeds a predetermined concentration. Of course, when the concentration of carbon monoxide suddenly rises and the alarm operation is required, continuous operation is possible instead of pulse operation.
This sensor has extremely fast responsiveness and is capable of pulse operation in the order of milliseconds, but of course it has excellent responsiveness even in continuous operation, so when carrying a carbon monoxide alarm unit in real time. It is possible to quickly grasp the concentration of carbon monoxide at that place.

(Embodiment 4) FIG. 8 is a conceptual diagram of a cross section of a carbon monoxide sensor which is the center of a carbon monoxide alarm unit which is a main part of a fire emergency safety device according to an embodiment of the present invention. Is.

In FIG. 8, as in the previous embodiment, 29 is a glass-based flat substrate. Heating element 30 on the substrate
And a solid electrolyte layer 32 is formed via an insulating film 31 formed by being laminated on the heating element 30. A pair of electrodes 35 is formed on the solid electrolyte 32, and a porous oxidation catalyst layer 36 is formed on one of the electrode surfaces.

Since the structure up to the electrode has been described in the previous embodiment, the porous oxidation catalyst layer will be described here.

The porous oxidation catalyst layer 36 is formed for the purpose of causing the electrode on the side where the porous oxidation catalyst layer is formed to function as a reference electrode. That is, it is used for the purpose of acting as a high oxygen concentration electrode capable of maintaining a constant oxygen concentration regardless of the generation of reducing gas such as carbon monoxide. The porous oxidation catalyst layer 36 has the ability to completely oxidize a reducing gas such as carbon monoxide, and oxygen has a function of sufficiently reaching the electrode, but reducing gas does not reach the electrode.

The porous oxidation catalyst layer 36 is composed of a basic catalyst and components such as a carrier or a porous dispersion for making the catalyst porous as required, and a binder for forming a film. Therefore, the characteristics of the porous oxidation catalyst layer 36 become a porous oxidation catalyst having different characteristics by changing the type of catalyst, the binder, the porosifying means, the film forming means, the film forming method, and the like. . The important characteristics of the porous oxidation catalyst layer 36 are the oxidation activity of the reducing gas to be detected and the diffusion characteristics of oxygen. These have different reaction characteristics and diffusivity to the gas by changing the kind of catalyst, film thickness, porosity and the like. As the catalyst, a noble metal system such as platinum, palladium, rhodium and a transition metal oxide or complex oxide system of a transition metal such as iron, manganese, copper, nickel and cobalt are used. The carrier is a porous ceramic such as alumina, and the binder is an inorganic adhesive such as glass or metal phosphate. The adhesive is formed into a paste under an appropriate dispersion medium, and the paste is applied and baked.

Further, by separately adding and forming a platinum resistance film on the flat glass substrate, it is possible to detect the carbon monoxide concentration and the temperature of the atmosphere in which the carbon monoxide alarm unit is installed. is there. By detecting the temperature, more accurate fire notification can be performed.

The operation of the gas sensor element section thus manufactured will be described.

When the heating element 30 is energized in a pulsed manner, the solid electrolyte element is instantaneously heated to 250 to 50 necessary for its operation.
Heat to a temperature of 0 ° C. Since the insulating film 31 is formed on the surface of the heating element 30, there is a concern that electrons may flow into the solid electrolyte membrane 32 and react with the solid electrolyte membrane 32, or the sensor output of the solid electrolyte membrane 32 may cause a heating element 30. The electric field effect of does not appear. The solid electrolyte membrane 32, the pair of electrodes 35 and the porous oxidation catalyst 36 formed on the surface of the solid electrolyte membrane 32 are brought into operation by heating the heating element 30 with electricity. In this situation, when placed in an environment of air that does not contain the gas to be detected such as carbon monoxide, the reference electrode side with the porous oxidation catalyst layer and the detection electrode without the porous oxidation catalyst layer Since the oxygen levels in between are almost equivalent, no electromotive force output is generated. On the other hand, in an environment of air containing a gas to be detected such as carbon monoxide, there is a difference in electromotive force output related to the carbon monoxide concentration between both electrodes. From this output difference, the carbon monoxide concentration can be known, and the alarm operation when the concentration exceeds a predetermined value becomes possible.

(Embodiment 5) FIG. 9 shows photoelectric smoke detection for a carbon monoxide sensor which is the center of a carbon monoxide alarm unit which is a main part of a fire emergency safety device according to an embodiment of the present invention. It is a conceptual diagram of the cross section of the sensor which added the sensor and aimed at compounding. The sensor may be used in combination as in this embodiment, but a new smoke sensor may be added separately. In FIG. 9, the upper part is the carbon monoxide sensor described in Example 3. The composite sensor of this embodiment includes a photoelectric smoke sensor at the bottom.

The smoke sensor has a support 37 having a reflector 38 formed on the inner surface thereof. The support 37 is provided with a vent 39 for letting air in and out, a light emitting diode 40 and a photodiode 41.

As the reflector 38 used here, a metal having heat resistance and excellent adhesion to the substrate can be applied, and it can be selected from the group of chromium, silver, nickel, aluminum and the like. . As a method of forming the reflector 38 on the flat glass substrate 29 and the support 37, any of dry method, wet method plating, PVD such as vapor deposition and sputtering, and the like can be applied. Further, the reflector 38 may be formed by a method such as adhering or caulking the metal foil or the like to the base material or the support.

The operation of the smoke sensor will be described. The light from the light-emitting diode 40 is also multiple-reflected between the flat glass substrate 29 and the reflector 38 on the back surface and the reflector 38 on the front surface of the support body 37 to form an optical path length longer than apparent, and a photocoupler is formed. To the photodiode forming the.
When smoke is generated, the smoke enters the optical path through the ventilation port 39 with a flow such as D. The smoke flow is from D to E, but in the meantime, it enters the optical path of the photocoupler,
Scatters light and attenuates light transmission. Therefore, a rapid decrease in light intensity can be detected with high sensitivity by calculating a time-series differential change in light intensity. As a result, smoke generation due to fire is detected. Also, since the gas sensor element section is heated for operation, due to convection based on this heating,
The sensitivity of smoke detection can be improved by designing the alarm system to have a draft effect that allows smoke to effectively flow into the optical system. In the composite sensor of this embodiment,
Although described as a simple optical path system, in reality, the optical path system needs to be more complicated in order to prevent stray light and prevent the invasion of insects such as spider cockroaches. In this way, by using the photoelectric smoke detection sensor and the carbon monoxide sensor in combination, in the case of only the smoke sensor, the risk of water vapor and cigarette smoke is high, whereas when both sensors detect The fire alarm can be performed with high accuracy and high reliability.

(Embodiment 6) FIG. 10 is a schematic view of a control system of a carbon monoxide alarm unit which constitutes a main part of a fire emergency safety device according to an embodiment of the present invention. Figure 10
2, the basic part is the same as that of FIG. 2, but the power supply part for driving the carbon monoxide sensor is different.
In FIG. 10, 42 is an AC power supply means. AC10
Input from an outlet at 0V. 43 is a rectification means. The AC power supply is converted into a DC drive voltage that is the same as the battery level. 44 is a power supply switching means. During normal operation,
Although operating with an AC 100V power supply, under the condition that the measured concentration of carbon monoxide exceeds the set level and reaches the concentration at which an alarm should be issued, the power supply switching means 44 differentially switches to battery operation.

In the battery operation, the battery 2 serves as an operating power source and a series of operations proceeds. The battery does not need to be a large-capacity battery because the capacity of the battery is sufficient for the emergency operation, regardless of the power of normal operation. Further, even in the normal operation, since the battery operation does not require the intermittent operation by the pulse drive, the operation can be performed in the state of good responsiveness in continuous measurement. The battery may be a primary battery such as a dry battery, but may be a secondary battery such as a lithium ion battery. When a secondary battery is used, it can be recharged and used repeatedly when the battery is exhausted.

The other basic operation is the same as that of the first embodiment, and therefore its explanation is omitted.

(Embodiment 7) FIG. 11 is a perspective view of a fire emergency safety device according to an embodiment of the present invention. In FIG. 11, reference numeral 45 is an illumination lamp. The carbon monoxide alarm unit 8 is provided with a grip, and in the embodiment shown in FIG. 11, a lighting section 47 is arranged in the front and a switch section 46 is arranged in the rear. In the case of this embodiment, the illumination can be obtained by rotating the switch portion. When a fire occurs at night, it is thought that the surroundings are often pitch black.In such a case, relying on the alarm sound emitted by the carbon monoxide alarm unit, find this device and attach the oxygen cylinder while You can carry out a carbon monoxide warning unit and evacuate relatively safely using lighting while monitoring the carbon monoxide concentration in the atmosphere. The other configuration of this embodiment is the same as that of the previous embodiment.

(Embodiment 8) FIG. 12 is a perspective view of a fire emergency safety device according to an embodiment of the present invention. In FIG. 12, reference numeral 48 is an antenna provided in the communication means and symbolically shows the communication means. The carbon monoxide alarm unit 8 is
It has communication means inside. As the communication means, it is possible to apply various existing means such as specific low power, PHS and satellite communication, and it is premised on battery operation. By providing such a communication means, it is possible to communicate with a specific place such as an office or a fire station, which is predetermined in an emergency situation when a fire occurs. Through such communication, it is possible to communicate important information to the outside such as when people are late to escape and are hiding in a safe place. FIG. 12 shows a scene in which a manager 49 in the manager's room of an apartment house is in contact. The other functions and operations of the fire emergency safety device are the same as those of the previous embodiment.

As can be seen from the above, the fire emergency safety device of the present invention has excellent functions as an alarm and a safety evacuation tool so that a fire can be safely evacuated.

[0096]

The fire emergency safety device of the present invention is embodied in the form as described above and has the following effects.

(1) Evacuate to a safe place with high reliability while notifying about the danger of carbon monoxide at the time of fire and measuring the concentration of carbon monoxide in real time while reducing the risk of carbon monoxide poisoning. be able to.

(2) It is possible to switch from the intermittent pulse drive operation which normally consumes less battery to the highly accurate real-time operation when the carbon monoxide alarm is issued, and to respond to the appropriate alarm operation.

(3) By using the AC power supply and the battery (DC) power supply together, it is possible to use the battery only in case of an emergency such as a fire, and it is possible to operate with a small battery capacity. It is also possible to design the unit to be small and lightweight.

(4) Even in the event of a fire at night or during a power failure, it is basically battery-operated and has an excellent ability to respond to emergencies. Evacuate safely by incorporating an illumination lamp. You can

(5) A temperature sensor or a photoelectric smoke sensor can be incorporated in the carbon monoxide sensor itself, and a highly reliable alarm system can be constructed.

As described above, as a fire emergency safety device, it is possible to obtain a highly practical device capable of not only issuing an alarm but also performing a safe evacuation in the event of a fire.

[Brief description of drawings]

FIG. 1 is a perspective view of a fire emergency safety device according to a first embodiment of the present invention.

FIG. 2 is a system schematic diagram of a carbon monoxide alarm unit that occupies a main part of a fire emergency safety device according to a second embodiment of the present invention.

FIG. 3 is an explanatory diagram of how to use a fire emergency safety device according to a third embodiment of the present invention.

FIG. 4 is a sectional conceptual view of a wearing mask portion occupying a main part of a fire emergency safety device according to a fourth embodiment of the present invention.

FIG. 5 is a perspective view of a fire emergency safety device according to a fifth embodiment of the present invention.

FIG. 6 is a cross-sectional view of an essential part of a carbon monoxide gas mask in Example 6 of the present invention.

FIG. 7 is a conceptual diagram of a carbon monoxide sensor in Example 7 of the present invention.

FIG. 8 is a conceptual diagram of a carbon monoxide sensor in Example 8 of the present invention.

FIG. 9 is a conceptual diagram of a composite sensor of a carbon monoxide sensor and a photoelectric smoke sensor according to Example 9 of the present invention.

FIG. 10 is a system schematic diagram of a carbon monoxide alarm unit that occupies a main part of a fire emergency safety device according to a tenth embodiment of the present invention.

FIG. 11 is a perspective view of a fire emergency safety device according to an eleventh embodiment of the present invention.

FIG. 12 is a perspective view of a fire emergency safety device according to a twelfth embodiment of the present invention.

[Explanation of symbols]

1 Carbon monoxide sensor 2 batteries 3 Battery power control means 4 Signal detection and amplification means 5 Signal comparison means 6 Signal control means 7 Warning means 8 Carbon monoxide alarm unit 9 oxygen cylinder

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Katsuhiko Uno             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. (72) Inventor Takashi Niwa             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. (72) Inventor Kunihiro Tsuruta             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. (72) Inventor Takahiro Umeda             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. F term (reference) 2E185 AA07 BA13 BA18 CA02 CB02                       CC36                 5C086 AA01 BA01 CA30 CB11 DA02                       DA04 DA08 FA01 GA01 GA06                 5C087 AA02 AA03 AA32 AA37 BB11                       BB22 DD04 DD20 EE05 EE14                       FF04 GG11 GG19 GG31 GG66

Claims (8)

[Claims] 1. A carbon monoxide alarm unit comprising a carbon monoxide sensor, a battery, a battery power control means, a signal detection means, a signal comparison means, a signal control means and an alarm means, and an oxygen cylinder and an air purification means. A fire emergency safety device comprising a wearing mask composed of a lid part provided. 2. A carbon monoxide alarm unit comprising a carbon monoxide sensor, a battery, a battery power control means, a signal detection means, a signal comparison means and an alarm means, and a carbon monoxide purification gas mask. Fire emergency safety equipment. 3. A carbon monoxide sensor comprising a heating element, an insulating film, a solid electrolyte film, and first and second electrodes on the solid electrolyte film laminated on a flat glass substrate. The fire emergency safety device according to claim 1 or 2, which uses a carbon oxide sensor. 4. As a carbon monoxide sensor, a heating element, an insulating film, a solid electrolyte membrane, a pair of electrodes on the solid electrolyte membrane, and a porous oxide on one of the electrodes are laminated on a flat glass substrate. The fire emergency safety device according to claim 1 or 2, which uses a carbon monoxide sensor provided with a catalyst. 5. The fire emergency safety device according to claim 1, further comprising a photoelectric smoke detection sensor in addition to the carbon monoxide alarm unit. 6. The fire emergency safety device according to claim 1, further comprising an AC power supply means, a rectification means, and a power supply switching means, which is added to the carbon monoxide alarm unit. 7. The fire emergency safety device according to any one of claims 1, 2, 5 and 6, further comprising a lighting lamp in addition to the carbon monoxide alarm unit. 8. A carbon monoxide alarm unit, further comprising a communication means, which is provided with any one of claims 1, 2, 5, 6, and 7.
Fire emergency safety device as described in paragraph.