JP2009199227A - Hybrid fire alarm, fire alarm body installed therein and gas detection unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accurately notify the time to replace a fire alarm body on the basis of the capacity of a battery installed in the fire alarm body. <P>SOLUTION: This combined type fire alarm 1 is provided with: a fire alarm body 2 for detecting a fire; a carbon monoxide detection unit 3 for detecting carbon monoxide; and a radio unit 4 for transmitting information on the occurrence of a fire or carbon monoxide to a radio relay unit. The carbon monoxide detection unit 3 and the radio unit 4 are installed so as to be freely detachable from the fire alarm body 2. The fire alarm body 2 is driven by a battery 11, and the battery 11 is unreplaceable. The carbon monoxide detection unit 3 is provided with a battery 14 independent of the battery 11 of the fire alarm body 2, and the battery 14 is unreplaceable. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a combined fire alarm for detecting and reporting fire and gas, and a fire alarm main body and a gas detection unit provided therein, in particular, a combined fire alarm using a battery as a power source, and the same. The present invention relates to a fire alarm body and a gas detection unit.

  Patent Document 1 discloses a gas / fire integrated alarm device (combined fire alarm) having a gas sensor portion (gas detection unit) for detecting gas and a fire detection portion (fire alarm body) for detecting a fire. Are listed. The fire detection unit in the alarm device is provided in the fire detection unit and is supplied with power from a power supply circuit connected to an external power supply (commercial AC power supply). When the gas sensor unit is attached to the fire detection unit, power is supplied from a power supply circuit provided in the fire detection unit.

  However, the alarm device described in Patent Document 1 is complicated in routing the cable from the outlet to the alarm device, and has a great restriction on the installation location. In addition, there is a problem that it cannot be used during a power failure.

  Therefore, an alarm device having a configuration in which a battery is provided in the fire detection unit and the gas sensor unit mounted on the fire detection unit and the fire detection unit is operated using the battery as a driving source is conceivable.

Japanese Patent Laid-Open No. 11-339149 (FIG. 1)

  However, when the fire detection unit and the gas sensor unit are operated using the battery provided in the fire detection unit as a power source, the battery capacity is consumed from both the fire detection unit and the gas sensor unit. In other words, the battery capacity of the battery is much consumed, so the battery runs out quickly, and the battery capacity depends on the frequency of gas detection / alarm, the replacement timing of the gas sensor, and the length of the non-attachment period at the time of replacement. Consumption can vary significantly.

  On the other hand, when a battery is used as the power source of the fire detection unit, there is a type in which the specification of the replacement period of the fire detection unit is set in response to a battery exhaustion for a battery that cannot be replaced. In general, the life of the parts used by the fire detection unit is longer than that of the gas sensor unit. If the battery runs out quickly, the long life of the fire detection part cannot be fully utilized. In addition, a significant change in the battery capacity consumption makes it difficult to accurately grasp the replacement timing of the fire detection unit.

  Therefore, the object of the present invention is to enable the fire alarm main body to be used for a long time corresponding to the life of the parts used in the fire alarm main body, including the battery of the power source, and provided in the fire alarm main body. To provide a composite fire alarm capable of relatively accurately grasping the replacement time of the fire alarm body from the battery capacity of the battery.

Means for Solving the Problems and Effects of the Invention

  The composite fire alarm of the present invention is a non-replaceable specification fire alarm main body having a first battery as a power source, and a second fire alarm main body that is detachably provided on the fire alarm main body and is independent of the fire alarm main body. A non-replaceable gas detection unit having a battery as a power source. The non-replaceable specification is a specification that the user must not replace the batteries provided in the fire alarm main body and the gas detection unit arbitrarily and reuse them. For example, in a fire alarm body shipped to a user in a state where a battery is accommodated in the case, this case is covered with a back cover, and the back cover is fixed to the case with screws and a seal is attached, If you remove the screw and replace the battery in the case after removing the seal, the fire alarm body may be out of warranty. Therefore, the sticking of such a seal can be regarded as a specification in which the fire alarm body cannot be replaced. That is, whether or not the battery remains in the shipping state due to the seal being peeled off by covering the part of the screw that fixes the back cover, or pasting part of the seal across both the back cover and the case. Can be clarified. In addition, it is noted that it is difficult to replace the battery due to the sticking of such a seal, and the battery cannot be replaced visually. Alternatively, in addition to the above or in combination with the above, the seal may indicate that the battery cannot be replaced. In addition, the non-replaceable fire alarm main unit has a mechanical mechanism in which the battery is molded with resin on the board or case, or the battery is soldered and fixed to the board or case. However, it also includes a fire alarm body that cannot be replaced. In addition, it is not possible to replace the battery even with a fire alarm unit that does not have screws etc., and the case is simply covered with the back cover of the entire case, or the back cover is fixed to the case with special screws or special screws. Considered as a specification.

  According to the composite fire alarm device of the present invention, since the power sources of the fire alarm device main body and the gas detection unit are independent batteries, the battery capacities of the batteries provided in each can be arbitrarily set. Therefore, the replacement period of the fire alarm main body can be set longer corresponding to the life of the parts used in the fire alarm main body including the battery of the power source. Moreover, the replacement time of the fire alarm body can be relatively accurately grasped from the battery capacity of the battery provided in the fire alarm body, regardless of the operating state and replacement time of the gas detection unit. Furthermore, since the battery is used as a power source, complicated cable routing and the like are not necessary, and the installation is simple and can be used even during a power failure.

  Moreover, it is preferable that the said 1st battery and the said 2nd battery have a capacity | capacitance corresponding to the replacement deadline of the said fire alarm main body and the said gas detection unit, respectively. According to this, when replacing the fire alarm body and the gas detection unit in the fire alarm body and the gas detection unit, even when each replacement time varies depending on the life of the parts to be used, the battery capacity of each battery Can be prevented from being wasted.

  Further, the fire alarm main body is provided with alarm means capable of notifying the outside of the fire detection by the fire alarm main body and the battery of the first battery, and the gas detection unit is attached to the fire alarm main body. Then, it is preferable that the alarm means can further notify the gas detection by the gas detection unit and the replacement timing of the gas detection unit. According to this, it is possible to notify the gas detection by the gas detection unit and the replacement timing of the gas detection unit by the alarm means provided in the fire alarm main body. In particular, the latter can clearly notify the gas detection unit whose replacement period is shorter than that of the main body of the fire alarm device that it is time to replace the gas detection unit itself rather than the battery running out.

  In addition, a detection means for detecting the voltage value of the second battery is provided, the gas detection unit is mounted on the fire alarm body, and the voltage value of the second battery detected by the detection means is a threshold value. In the following cases, it is preferable that the alarm means informs that it is time to replace the gas detection unit. According to this, it is possible to detect the replacement time of the gas detection unit only by detecting that the voltage value of the second battery is equal to or less than the threshold value. That is, the configuration for grasping the replacement time, such as counting the expiration date of use of the gas detection unit, can be made easier. Therefore, it is possible to reduce the burden on the operation of the fire alarm main body and the gas detection unit.

  In another aspect, the composite fire alarm of the present invention has an alarm means for notifying an external alarm and a first battery as a power source, and the time when the battery capacity of the first battery runs out is exchanged. A fire alarm main body that is timed, and a detachable installation on the fire alarm main body, the alarm means being shared with the fire alarm main body, and a second battery independent of the fire alarm main body as a power source And a gas detection unit that reaches a replacement time earlier than a time when the battery capacity of the first battery runs out.

  According to the composite fire alarm device of the present invention, since the power sources of the fire alarm device main body and the gas detection unit are independent batteries, the battery capacities of the batteries provided in each can be arbitrarily set. Accordingly, the replacement period of the fire alarm main body can be set longer corresponding to the life of the parts used in the fire alarm main body including the battery of the power source. Moreover, the replacement time of the fire alarm body can be relatively accurately grasped from the battery capacity of the battery provided in the fire alarm body, regardless of the operating state and replacement time of the gas detection unit.

  In addition, it is preferable to further include a wireless unit that is detachably provided on the fire alarm body and uses a third battery as a power source independent of the batteries provided in the fire alarm body and the gas detection unit. . According to this, since the wireless unit has a battery independent from the fire alarm body and the gas detection unit, the battery provided in the fire alarm body and the gas detection unit is not consumed. It is possible to prevent the replacement time of the main body and the gas detection unit from being affected.

  Furthermore, it is preferable that the wireless unit has a specification in which the third battery can be replaced. Each component of the wireless unit generally has a long life, a long use permission period, and is expensive. Therefore, since the wireless unit has a specification in which the battery can be replaced, the user can arbitrarily replace the battery, and the expiration date of the wireless unit can be extended.

  The fire alarm main body of the present invention can be provided in any of the above-described composite fire alarms.

  The gas detection unit of the present invention can be provided in any of the above-described composite fire alarms.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic perspective view of a combined fire alarm for detecting a fire and carbon monoxide according to an embodiment of the present invention when viewed from the back side.

  As shown in FIG. 1, the composite fire alarm 1 includes a fire alarm body 2 that detects a fire, and a gas detection unit 3, for example, a carbon monoxide detection unit 3 that detects carbon monoxide (CO) (hereinafter referred to as “carbon monoxide”). As an example, a description will be given using the carbon monoxide detection unit 3), and a wireless unit 4 that transmits the occurrence of a fire or carbon monoxide to a display panel 5 (hereinafter simply referred to as a display panel) including a wireless repeater function described later; have.

  First, the fire alarm main body 2 will be described with reference to FIGS. FIG. 2 is a schematic perspective view when the carbon monoxide detection unit and the wireless unit are removed from the fire alarm body and viewed from the back side. FIG. 3 is a diagram for explaining a schematic configuration of the fire alarm main body, (a) is a plan view of the fire alarm main body, and (b) is a cross-sectional side view of the fire alarm main body along the line AA. FIG. FIG. 4 is a schematic perspective view when the back cover of the fire alarm main body is removed. FIG. 5 is a block diagram showing the electrical configuration of the combined fire alarm and the display panel.

  As shown in FIG. 3, the fire alarm main body 2 is composed of casings 7A, 7B, and 7C, and the lowermost casing 7C has a cylindrical case 7a and a back cover 7b that covers the opening of the case 7a. is doing. By covering the opening of the case 7a with the back cover 7b and fixing the back cover 7b to the case 7a with two screws 8, the battery 11 is accommodated in the housing 7C. On the surface of the back cover 7b, a seal 9 on which the specifications of the fire alarm body 2 are written is stuck so as to hide one screw 8 below in FIG.

  In addition, a recess 7c that can be fitted to the carbon monoxide detection unit 3 and a recess 7d that can be fitted to the wireless unit 4 are formed in the housing 7C. The side wall of the recess 7c is formed by a back cover 7b, and the upper wall of the recess 7c is formed by a case 7a. Further, the side wall and the bottom wall of the recess 7d are formed by a back cover 7b.

  When the carbon monoxide detection unit 3 is fitted into the recess 7c, the connector 31 provided in the fire alarm body 2 and the connector described later provided in the carbon monoxide detection unit 3 are connected to each other, and the fire alarm body 2 and the carbon monoxide detection unit 3 are electrically connected. Further, when the wireless unit 4 is fitted into the recess 7d, the connector 33 provided in the fire alarm body 2 and the connector (not shown) provided in the wireless unit 4 are connected, and the fire alarm body 2 and the wireless unit are connected. 4 is configured to be electrically connected.

  The recess 7c is formed with a slit 7e penetrating to the outer side surface and the upper surface of the housing 7C (the back direction in the drawing of FIG. 2). The slit 7e is exposed through a gap formed between the casing 7A and the casing 7C, and is formed to introduce gas through the gap. When carbon monoxide is introduced from the slit 7e, the slit 7e is fitted into the recess 7c. Carbon monoxide can be detected by the combined carbon monoxide detection unit 3.

  As shown in FIG. 4, when the back cover 7b is removed from the case 7a, the circuit board 12 is fixed inside the case 7a. A connector 31 connected to the connector of the carbon monoxide detection unit 3 is fixed to one end of the back surface of the circuit board 12 in a state of being electrically connected to the circuit board 12. A connector 33 connected to the connector of the wireless unit 4 is fixed to the other end of the circuit board 12 in a state of being electrically connected to the circuit board 12. Between the connector 31 and the connector 33 on the circuit board 12, two batteries 11 (first batteries) serving as a power source for the fire alarm body 2 are fixed. Both electrodes of the two batteries 11 are electrically connected to the circuit board 12 via the connector 13. In this configuration, when the opening of the case 7a is covered with the back cover 7b, only the connectors 31 and 33 are exposed to the outside, and the two batteries 11 and the circuit board 12 are hidden. The two screw bosses 41 provided on the top surface of the case 7a correspond to the screws 8 for fixing the back cover 7b.

  The fire alarm main body 2 in the present embodiment has a battery 11 that is not replaceable. The non-replaceable specification is a specification that the user should not replace and reuse the battery 11 provided in the fire alarm main body 2 arbitrarily. For example, in this embodiment, the battery 11 is housed in the case 7a, the case 7a is covered with the back cover 7b, the back cover 7b is fixed to the case 7a with screws 8, and the seal 9 is attached. Therefore, if the user removes the screw 9 and replaces the battery 11 in the case 7a after removing the seal 9, the fire alarm body 2 is not covered by the warranty. Become. In this way, the seal 9 covers the part of the screw 8 for fixing the back cover 7b, or a part of the seal 9 is pasted over both the back cover 7b and the case 7a. Thus, it can be clarified whether or not the battery 11 remains in the shipping state. In addition, it is noted that the battery 11 cannot be easily replaced due to the sticking of such a seal 9, and the battery cannot be replaced visually. Alternatively, separately or in combination with the above, the seal 9 may clearly indicate that the battery cannot be replaced. In addition, as the non-replaceable specification fire alarm main body 2, the battery 11 is molded with resin on the circuit board 12 or the case 7a, or the battery 11 is fixed to the circuit board 12 or the case 7a by soldering. A fire alarm main body having a configuration in which the user cannot replace the battery 11 mechanically is also included. Furthermore, a fire alarm main body having a configuration in which the case 7a is simply covered with the back cover 7b of the entire case, or the back cover 7b is fixed to the case 7a with a special screw or a dedicated screw without the screws 8 or the like. Is regarded as a non-changeable battery specification.

  It has been confirmed that the time limit for using a fire alarm with high reliability and safety is, for example, about 15 years from the life of parts in the case of a commercially available fire alarm. The replacement period of the fire alarm is often set to, for example, 10 years in the above example, as a normal specification, with a certain margin from the usable period viewed from the lifetime of the component. In the present embodiment, the battery 11 provided in the fire alarm body 2 is determined as a specification at a minimum, based on assumptions such as standby power consumption (while monitoring smoke) and statistical sensing / alarm frequency. A fire alarm replacement period (for example, 10 years) or longer, with a long margin, and operating normally in the range of 3 or 4 years until the expected period (for example, 15 years) based on the life of the parts. The capacity is selected.

  As will be described later, in the present embodiment, the carbon monoxide detection unit 3 and / or the wireless unit 4 are detachably provided on the fire alarm body 2, but each has independent batteries 14 and 18, and the fire alarm body 2 receives a notification instruction signal from them and performs notification with a buzzer sound or voice. Therefore, in the capacity estimation of the battery 11 provided in the fire alarm main body 2, the alarm conditions related to the carbon monoxide detection unit 3 and / or the wireless unit 4 are naturally included. However, the influence of the battery capacity consumption in the fire alarm main body 2 due to the attachment / detachment of the carbon monoxide detection unit 3 and / or the wireless unit 4 is small.

  Therefore, the fire alarm main body 2 provided in the composite fire alarm 1 in the present embodiment can sufficiently secure a capacity corresponding to a replacement period of 10 years in a normal battery normally used in the past, The replacement period is not greatly shortened by running out of batteries. Further, there is no significant change in the battery capacity consumption, and it is possible to easily and relatively accurately grasp the replacement time of the fire alarm body 2.

  As shown in FIG. 5, the fire alarm main body 2 includes a photoelectric smoke detector 6 for detecting smoke, a speaker 10 for informing various alarms to the outside, and a microcomputer for performing various controls. And a control circuit 20. These are arranged and fixed in a space constituted by the casings 7A and 7B as schematically shown in FIG.

  The smoke detector 6 changes the output value according to the amount of smoke generated. The speaker 10 notifies the fire detection by the smoke detection unit 6 and battery exhaustion of the battery 11 with a buzzer sound or voice. In addition, when the carbon monoxide detection unit 3 is mounted on the fire alarm main body 2, the speaker 10 is in a carbon monoxide detection by the carbon monoxide detection unit 3, and the carbon monoxide detection unit 3 is in a replacement period. Is notified by a buzzer sound or voice. Furthermore, when the wireless unit 4 is mounted on the fire alarm body 2, information received by the wireless unit 4 from the display panel 5 (fires at the installation location of other composite fire alarms 1 and carbon monoxide Occurrence) with a buzzer sound or voice.

  Next, the carbon monoxide detection unit 3 will be described with reference to FIG. 2 and FIGS. FIG. 6 is a diagram illustrating a schematic configuration of the monoxide detection unit, (a) is a plan view of the carbon monoxide detection unit, and (b) is a diagram of the carbon monoxide detection unit along the line BB. It is a sectional side view. FIG. 7 is a schematic perspective view when the back cover of the carbon monoxide detection unit is removed.

  The carbon monoxide detection unit 3 is detachably provided on the fire alarm body 2 and detects carbon monoxide by a carbon monoxide detection sensor 15 (see FIG. 6) such as a semiconductor type, catalytic combustion type, or electrochemical type. To do. The carbon monoxide detection sensor 15 changes the output value according to the amount of carbon monoxide generated. As shown in FIGS. 2 and 6, the carbon monoxide detection unit 3 includes a casing 16 formed of a case-like case 16 a and a back cover 16 b that covers the opening of the case 16 a. The case 16 a accommodates the battery 14, covers the opening with the back cover 16 b, and is closed by fixing the back cover 16 b to the case 16 a with the two screws 8. On the surface of the back cover 16b, a seal 17 on which the specifications of the carbon monoxide detection unit 3 are written is pasted so as to hide the two screws 8.

  Further, two openings 16c and 16d are formed in the case 16a of the carbon monoxide detection unit 3, and the carbon monoxide detection sensor 15 and the connector 32 are exposed from the opening 16c, respectively. When the carbon monoxide detection unit 3 is mounted in the recess 7c of the fire alarm body 2, the carbon monoxide detection sensor 15 is exposed from the case 16a, so that carbon monoxide introduced from the slit 7e can be detected. It has become. Further, the connector 32 is exposed from the case 16a, so that it can be connected to the connector 31 (see FIG. 3) of the fire alarm main body 2.

  As shown in FIG. 7, when the back cover 16b is removed from the case 16a, the circuit board 42 is fixed in the case 16a. A connector 32 connected to the connector 31 of the fire alarm main body 2 is fixed to one end of the circuit board 42 in a state of being electrically connected to the circuit board 42. In addition, on the circuit board 42, two batteries 14 (second batteries) serving as a power source for the carbon monoxide detection unit 3 are provided independently of the fire alarm body 2. Both ends of the two batteries 14 are electrically connected to the circuit board 42 via the connector 19. In this configuration, when the opening of the case 16a is covered with the back cover 16b, the two batteries 14 and the circuit board 42 are hidden.

  In addition, the carbon monoxide detection unit 3 in the present embodiment has a non-replaceable specification for the battery 14 as with the fire alarm body 2. That is, if the battery 14 housed inside is replaced due to the relationship between the lifetime of the component parts and the battery capacity of the battery used, this carbon monoxide detection unit is the same as in the case of the fire alarm body 2. 3 may be out of warranty. Accordingly, as shown, for example, the seal 17 covers a part of the screw 8 for fixing the back cover 16b, or a part of the seal 17 is pasted over both the back cover 16b and the case 16a although not shown. Thus, it is possible to clarify whether the battery remains in the shipping state due to the peeling of the seal 17. Further, it is noted that the battery 14 is difficult to be replaced due to the sticking of the seal 17, and the battery cannot be replaced visually. Alternatively, separately or in combination with the above, the seal 17 may clearly indicate that the battery cannot be replaced. Further, as the carbon monoxide detection unit 3 which is not replaceable, the battery 14 is molded with resin on the circuit board 42 or the case 16a, or the battery 14 is fixed by being soldered to the circuit board 42 or the case 16a. A carbon monoxide detection unit 3 having a configuration in which the user cannot replace the battery mechanically is also included. In addition, it is not possible to replace the battery even with a fire alarm unit that does not have screws etc., and the case is simply covered with the back cover of the entire case, or the back cover is fixed to the case with special screws or special screws. Considered as a specification.

  In general, a semiconductor element is often used for carbon monoxide detection by the carbon monoxide detection unit 3, and the carbon monoxide detection unit 3 has a shorter lifetime than the fire alarm body 2. In the present embodiment, the capacity of the two batteries 14 is selected as the specification of the carbon monoxide detection unit 3 so as to be able to be used almost certainly for at least 5 years based on the lifetime of various components.

  Thus, the battery capacity of the battery provided in each can be arbitrarily set by making the power supplies of the fire alarm main body 2 and the carbon monoxide detection unit 3 into independent batteries 11 and 14, respectively. Therefore, regardless of whether the carbon monoxide detection unit 3 is attached or detached, the fire alarm main body 2 can ensure a replacement deadline that is set based on the lifetime of various components that constitute the fire alarm main body 2. That is, the battery can be used for a long time without running out of battery during this time. In addition, the replacement time of the fire alarm main body 2 can be grasped relatively accurately from the battery capacity of the battery 11 provided in the fire alarm main body 2 regardless of the operating state and replacement time of the carbon monoxide detection unit 3. it can.

  Furthermore, the carbon monoxide detection unit 3 has a replacement period as short as 5 years, for example, based on the lifetime of the component parts. However, by replacing the carbon monoxide detection unit 3 with a new one at the time of replacement, a combined fire can be obtained. The alarm device 1 can be used almost certainly for 10 years after the replacement period after the initial use.

  On the other hand, it is needless to say that the carbon monoxide detection unit 3 can be used safely and with high reliability from the lifetime of the component parts to the replacement deadline set. In other words, it is not necessary to set the replacement time of the carbon monoxide detection unit 3 to the replacement time of the fire alarm main body 2, and it is easy to set the components and batteries constituting the carbon monoxide detection unit 3. There are advantages you can do.

  In the present embodiment, the carbon monoxide detection unit 3 and the wireless unit 4 may not be provided in the fire alarm main body 2 from the beginning because they are positioned as options. If necessary, the carbon monoxide detection unit 3 and / or the radio unit 4 may be additionally installed. That is, the fire alarm main body 2 may be used as the combined fire alarm 1 in combination with the carbon monoxide detection unit 3 and / or the radio unit 4, or may be used alone. In addition, the fire alarm main body 2 and the carbon monoxide detection unit 3 may be sold in combination or separately. In any case, the fire alarm main body 2 can be used for a long period of time as set by ensuring a replacement deadline set based on the lifetime of various parts constituting the fire alarm main body 2 as described above. .

  Further, the battery 11 provided in the fire alarm body 2 has such a capacity that the battery capacity is lost at the time of replacement of the fire alarm body 2, and the battery 14 provided in the carbon monoxide detection unit 3 is Since the battery capacity is such that the battery capacity disappears when the carbon oxide detection unit 3 is replaced, the battery capacity of the battery remains useless when the fire alarm body 2 and the carbon monoxide detection unit 3 are replaced. This can be prevented. In addition, by setting the replacement time of the fire alarm main body 2 and the carbon monoxide detection unit 3 and the time when the batteries 11 and 14 run out of battery capacity at the same time, It can be understood that it is time to replace the alarm device body 2 and the carbon monoxide detection unit 3.

  In the present embodiment, alarms relating to the batteries 11 and 14 are performed, for example, as follows. As shown in FIG. 5, the battery voltage detectors 23 and 44 are provided in the fire alarm main body 2 and the carbon monoxide detection unit 3, respectively, and a drop in the battery voltage of each battery 11 and 14 is detected to generate an alarm. . Both alarms are emitted through the speaker 10 similarly provided in the fire alarm body 2 under the control of the notification control unit 24 provided in the fire alarm body 2. When the carbon monoxide detection unit 3 is attached, the connectors 32 and 31 (see FIGS. 3 and 6) are connected by attachment, and the detection signal of the battery voltage detection unit 44 is input to the notification control unit 24 of the fire alarm body 2 Is done.

  With respect to the battery 11 of the fire alarm main body 2, the battery voltage is reduced to a predetermined value or less, for example, by informing that “the battery has run out”, it is warned that it is time to replace the fire alarm main body 2.

  Regarding the battery 14 of the carbon monoxide detection unit 3, in the present embodiment, the battery dead time and the replacement deadline are set to approximately the same by setting the battery capacity. The battery voltage drop is detected, and with this detection time, for example, “the time to replace the carbon monoxide unit has come. Please contact your dealer” is warned. In order to grasp the replacement time, it is possible to adopt a configuration in which the period of use of the carbon monoxide detection unit 3 is accurately counted. However, as described above, the voltage value of the battery 14 is detected by the battery voltage detection unit 43. It is possible to detect the replacement time of the carbon monoxide detection unit 3 with a simple configuration. Moreover, there is an advantage that the burden on the operation of the fire alarm main body 2 and the carbon monoxide detection unit 3 is reduced, which is useful.

  When the carbon monoxide sensor 15 and the carbon monoxide detection determination unit 43 determine the presence of carbon monoxide above a predetermined level when the carbon monoxide detection unit 3 is attached, the fire alarm body 2 is similarly notified. Under the control of the control unit 24, for example, the speaker 10 informs, for example, “Air is dirty and dangerous. Please ventilate”.

  Next, the wireless unit 4 will be described with reference to FIGS. As shown in FIGS. 2 and 5, the wireless unit 4 is detachably provided on the fire alarm main body 2, and transmits various information to the display panel 5, or displays the display panel 5 from other wireless units 4. Or receive information sent to. Information transmitted from the wireless unit 4 to the display panel 5 includes fire detection by the fire alarm body 2 to which the wireless unit 4 is attached, and a carbon monoxide detection unit 3 attached to the fire alarm body 2. For example, information on carbon monoxide detection, battery exhaustion of the battery 11 provided in the fire alarm main body 2, replacement timing of the carbon monoxide detection unit 3, and battery exhaustion of the wireless unit 4 may be mentioned. Such information is notified from the speaker 19 of the display panel 5. Also, by transmitting from the display panel 5, necessary information can be notified appropriately from the speaker 10 of the fire alarm main body 2 to which the wireless unit 4 is attached.

  Further, the wireless unit 4 has a battery 18 serving as a power source. That is, the wireless unit 4 uses the battery 18 that is independent of the fire alarm body 2 and the carbon monoxide detection unit 3 as a power source. The specification is such that the user can arbitrarily replace the battery. The battery replaceable specification is a specification that the user may arbitrarily replace the battery 18 provided in the wireless unit 4. In general, each component of the wireless unit 4 generally has a long life, for example, can be used for a period of 30 years, and is expensive. Therefore, since the wireless unit 4 has specifications that allow battery replacement, the user can arbitrarily replace the battery, and the use period of the wireless unit 4 can be extended. There may be a dedicated lid for the battery 18, or the battery 18 may be exposed from the wireless unit 4 as shown in FIGS. 1 and 2. With these configurations, the battery can be replaced.

  As described above, since the wireless unit 4 has the battery 18 independent of the fire alarm body 2 and the carbon monoxide detection unit 3, even when the wireless unit 4 is additionally mounted, the fire alarm body 2 and the carbon monoxide detection unit 3 are not consumed, and it is possible to prevent the replacement period of the fire alarm body 2 and the carbon monoxide detection unit 3 from being affected.

  Next, the electrical configuration of each part of the composite fire alarm 1 will be described with reference to FIG. The control circuit 20 includes a ROM in which programs and data for controlling various operations are stored, a CPU (Central Processing Unit) for executing various operations to generate signals for controlling the various operations, calculation results in the CPU, and the like. RAM (Random Access Memory) that temporarily stores the data is included. Alternatively, the control circuit 20 may be configured with a logic IC, ASIC, FPGA, or the like. The control circuit 20 includes a smoke detection determination unit 21, a battery voltage detection unit 23, and a notification control unit 24.

  The smoke detection determination unit 21 determines the generation of smoke, that is, the occurrence of fire, from the output value output by the smoke detection unit 6. In addition, when smoke (fire) is generated, the smoke detection determination unit 21 transmits information related to the notification control unit 24 and a wireless control unit 26 described later provided in the wireless unit 4.

  The carbon monoxide detection determination unit 43 provided in the carbon monoxide detection unit 3 determines the generation of carbon monoxide from the output value output by the carbon monoxide detection sensor 15. In addition, when carbon monoxide is generated, the carbon monoxide detection determination unit 43 transmits information related to the notification control unit 24 and the wireless control unit 26 provided in the wireless unit 4.

  The battery voltage detectors 23, 44, 45 provided in the fire alarm body 2, the carbon monoxide detection unit 3 and the wireless unit 4 are respectively connected to the battery 11, the carbon monoxide detection unit 3 provided in the fire alarm body 2. The voltage values of the battery 14 provided in the battery 14 and the battery 18 provided in the wireless unit 4 are detected. The battery voltage detectors 23, 44, 45 are connected to the alarm control unit 24 and the wireless unit of the fire alarm body 2 when the voltage value of any of the batteries 11, 14, 18 is below a predetermined threshold value. 4 transmits information related to that to the wireless control unit 26 provided in FIG. For example, the battery capacity of the battery 11 provided in the fire alarm main body 2 decreases due to a spontaneous discharge, a standby operation of the fire alarm main body 2 or an alarm operation due to smoke detection. When the battery capacity decreases, the voltage value of the battery 11 decreases. And when the voltage value of the battery 11 becomes below a predetermined threshold value, it can be considered that the battery has run out. Similarly, regarding the battery 14 provided in the carbon monoxide detection unit 3 and the battery 18 provided in the wireless unit 4, if the voltage value becomes equal to or lower than a predetermined threshold value, it can be considered that the battery has run out.

  The notification control unit 24 controls the speaker 10 to notify the information input from the smoke detection determination unit 21, the carbon monoxide detection determination unit 43, and the battery voltage detection units 23, 44, and 45. The notification control unit 24 also inputs information from the radio control unit 26 and controls the speaker 10 to notify this information.

  The wireless unit 4 includes a wireless control unit 26, a wireless transmission unit 27, a wireless reception unit 28, and a battery voltage detection unit 45 as an electrical configuration. The wireless control unit 26 outputs information input from the smoke detection determination unit 21, the carbon monoxide detection determination unit 43, and the battery voltage detection units 23, 44, 45 to the wireless transmission unit 27. Further, the wireless control unit 26 outputs the information received by the wireless reception unit 28 to the notification control unit 24 of the fire alarm body 2. The wireless transmission unit 27 wirelessly transmits information input from the wireless control unit 26 to the display panel 5 that is a wireless master unit. The wireless reception unit 28 outputs information transmitted from the display panel 5 by wireless to the wireless control unit 26.

  Next, a description will be given of wireless interlocking (transfer) between composite fire alarms when a plurality of composite fire alarms according to the present embodiment are used. FIG. 8 is a diagram showing a plurality of combined fire alarms and display panels. In FIG. 8, a plurality of composite fire alarms are drawn close to each other, but it is assumed that one is provided in each room in a residence or the like. And the display panel shall be provided in the wall surface etc. of any one of several rooms. The plurality of composite fire alarms 1 are referred to as composite fire alarms 1a, 1b, and 1c, respectively. In addition, as shown in FIG. 1, both the carbon monoxide detection unit 3 and the radio | wireless unit 4 are attached to the fire alarm main body 2 here in composite fire alarm 1a, 1b, 1c.

  First, the configuration of the display panel 5 will be described. As shown in FIG. 5, the display panel 5 receives and displays a speaker 19 that notifies various alarms to the outside, LEDs 37 a, 37 b, and 37 c that visually notify the location where the alarm occurred, and an AC commercial AC power supply. It has a power circuit battery 36 for converting it into a power source for the power source of the panel 5 and a control circuit 30 including a microcomputer for performing various controls.

  The control circuit 30 includes a radio control unit 31, a radio transmission unit 32, a radio reception unit 33, and a notification control unit 34. Information transmitted wirelessly from the wireless transmitter 27 of any of the combined fire alarms 1a, 1b, 1c (for example, the combined fire alarm 1a) is received by the wireless receiver 33 of the display panel 5. Input to the wireless control unit 31. The wireless control unit 31 outputs the information input from the wireless reception unit 33 to the wireless transmission unit 32 so as to be transmitted to the other combined fire alarm devices 1b and 1c. The wireless transmission unit 32 wirelessly transmits the information output from the wireless control unit 31 to the wireless unit 4 of the combined fire alarm 1b, 1c. Further, the wireless reception unit 33 outputs the received information to the notification control unit 34, and the notification control unit 34 inputs the information transmitted from the wireless control unit 31, and the speaker 19 and the LED 37 so as to notify the information. To control.

  For example, as shown in FIG. 8, when smoke is generated in a room where the composite fire alarm 1a is installed, the smoke detection determination is made based on the output value output from the smoke detector 6 provided in the composite fire alarm 1a. The unit 21 determines that the generation of smoke is greater than or equal to a predetermined value. Then, the smoke detection determination unit 21 inputs information indicating that smoke has been generated to the notification control unit 24 and the wireless control unit 26 provided in the wireless unit 4.

  When the information indicating that smoke has occurred at a predetermined value or more is input, the notification control unit 24 alerts the speaker 10 with a message “fire, for example”. When the information indicating that smoke has occurred at a predetermined value or more is input, the wireless control unit 26 outputs the information to the wireless transmission unit 27 provided in the wireless unit 4. Then, the wireless transmission unit 27 transmits the information to the display panel 5 by wireless, so that the wireless reception unit 33 provided in the display panel 5 receives the information.

  Then, when the wireless receiving unit 33 outputs the information to the wireless control unit 31, the wireless control unit 31 confirms that smoke has been generated in the room where the composite fire alarm 1a is installed by wireless transmission of the wireless transmission unit 32. The information is transferred to the combined fire alarms 1b and 1c installed in other rooms. Specifically, information transmitted to the notification control unit 24 via the wireless reception unit 28 and the wireless control unit 26 provided in the combined fire alarm devices 1b and 1c, and information indicating that smoke has been generated in other rooms, for example A message “fire in another room” is notified to the speaker 10. Further, the wireless control unit 31 outputs information indicating that smoke (fire) has occurred to the notification control unit 34. When the notification control unit 34 receives information indicating that smoke has been generated at a predetermined value or more, the notification control unit 34 notifies the speaker 19 of the display panel 5 of a message “fire,” and the LED 37a corresponding to the room where the smoke is generated. Light up.

  The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and various modifications can be made as long as they are described in the claims. For example, in the present embodiment, the detectable gas is only carbon monoxide. However, the present invention is not limited to carbon monoxide, and any gas such as other combustible gas may be detectable.

  The unit for detecting a fire is not limited to the photoelectric type for detecting smoke, but may be a unit using any fire detection method such as an ionization type or a heat sensing type for detecting temperature.

  Further, in the present embodiment, by wireless communication by the wireless unit, notification (transfer) such as fire or gas generation is transmitted to the composite fire alarm having another wireless unit via the display panel having a wireless repeater function. In the case where only one composite fire alarm is provided, the wireless unit need not be provided. At this time, a wireless repeater may not be provided.

  In addition, in this embodiment, the replacement time of the carbon monoxide detection unit is detected from the voltage drop of the battery. However, a usage period may be measured by providing a counter or the like.

  Further, in this embodiment, the fire alarm main body notifies the alarm to the outside by a speaker. However, not only the speaker but also an LED or a display is provided, and the alarm is externally indicated by blinking of the LED or display on the display. May be notified.

  Moreover, the alerting | reporting content in a fire alarm main body or a display panel is not specified by this embodiment. For example, a necessary notification may be appropriately performed at the time of notification when the fire alarm device main unit and each unit have failed or when the fire alarm device main unit or each unit is tested.

  Moreover, the number of batteries provided in the fire alarm body 2, the carbon monoxide detection unit 3, and the wireless unit 4 can be arbitrarily changed according to the capacity.

It is a schematic perspective view when the composite fire alarm which detects the fire and carbon monoxide which concerns on one Embodiment of this invention is seen from the back side. It is a schematic perspective view when the carbon monoxide detection unit and the wireless unit are removed from the fire alarm body and viewed from the back side. It is a figure explaining schematic structure of a fire alarm main part, (a) is a top view of a fire alarm main part, and (b) is a sectional side view of a fire alarm main part along an AA line. It is a schematic plan view when the back cover of a fire alarm main body is removed. It is a block diagram which shows the electrical structure of a composite-type fire alarm and a display panel. It is a figure explaining schematic structure of a monoxide detection unit, (a) is a top view of a carbon monoxide detection unit, (b) is a sectional side view of a carbon monoxide detection unit along a BB line. is there. It is a schematic perspective view when the back cover of a carbon monoxide detection unit is removed. It is a figure which shows a some composite fire alarm and a display panel.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Composite type fire alarm 2 Fire alarm main body 3 Carbon monoxide detection unit 4 Wireless unit 5 Display panel 6 Smoke detection part 10, 19 Speaker 11, 14, 18 Battery 15 Carbon monoxide detection module

Claims (9)

A non-replaceable fire alarm body with a first battery as a power source;
A gas detection unit that is detachably provided on the fire alarm body and has a second battery as a power source independent from the fire alarm body; Alarm.   2. The composite fire alarm according to claim 1, wherein the first battery and the second battery have capacities corresponding to replacement deadlines of the fire alarm body and the gas detection unit, respectively. The main body of the fire alarm is provided with alarm means capable of informing the outside of the fire detection by the main body of the fire alarm and the outage of the first battery,
2. When the gas detection unit is attached to the fire alarm main body, the alarm means can further notify gas detection by the gas detection unit and replacement timing of the gas detection unit. Or the combined fire alarm device of 2. A detecting means for detecting a voltage value of the second battery;
When the gas detection unit is mounted on the fire alarm main body and the voltage value of the second battery detected by the detection means is equal to or lower than a threshold value, the alarm means is time for replacement of the gas detection unit. The combined fire alarm device according to claim 3, wherein this is notified. A fire alarm main body having an alarm means for informing an alarm to the outside and a first battery as a power source, and a time when the battery capacity of the first battery runs out becomes a replacement time;
The fire alarm main body is detachably provided, the alarm means is shared with the fire alarm main body, and a second battery independent from the fire alarm main body is used as a power source. The battery of the first battery A combined fire alarm, comprising: a gas detection unit that reaches a replacement time earlier than a time when the capacity runs out.   The apparatus further comprises a wireless unit that is detachably provided on the fire alarm body and that uses a third battery as a power source independent of the batteries provided in the fire alarm body and the gas detection unit. The combined fire alarm device according to any one of claims 1 to 5.   The combined fire alarm according to claim 6, wherein the wireless unit has a specification that allows the third battery to be replaced.   A fire alarm main body provided in the composite fire alarm according to any one of claims 1 to 7.   A gas detection unit provided in the composite fire alarm according to any one of claims 1 to 7.

Images