JP4007330B2 - Residential fire alarm and residential fire alarm system using the same - Google Patents

Description

  The present invention relates to an improvement of a residential fire alarm.

Conventional fire alarms for houses detect non-fires such as smoke from cooking in house and smoke from pest control smoke, etc., so non-fire reports are likely to occur. Conventionally, there has been no effective means for preventing the occurrence of such non-fire reports in advance.
The following Patent Document 1 describes a fire alarm device that once outputs an alarm and then stops the alarm output for a certain period of time by operating an acoustic stop switch. In order to prevent the alarm from being output in advance. Not something.
JP-A-8-166348

  The present invention has been proposed in view of such circumstances, and its purpose is to have a so-called masking function for temporarily prohibiting alarm output when a non-fire report factor is known in advance in a house. It is to provide a fire alarm or system for residential use.

In order to achieve the above object, the present applicant has proposed the following first to third aspects of the present invention.
That is, the fire alarm for a house according to claim 1 according to the first aspect of the present invention includes a fire detection circuit unit that detects a fire by heat and smoke and outputs a fire detection signal; An alarm circuit unit that outputs, a timer circuit unit that counts a preset timer time, and a mask setting switch, and when the mask setting switch is operated, the timer circuit is activated until the timer time elapses Is configured to stop the fire detection function of the fire detection circuit and prohibit alarm output.

According to a second aspect of the present invention, in the first aspect, the mask setting switch is also used as a test switch.
In the first aspect of the present invention, a timer is activated by operating a mask setting switch, and alarm output by a fire detection signal is prohibited for a certain period of time. Is preventing.

The residential fire alarm system according to claim 3, which is the second aspect of the present invention, detects a fire by heat or smoke and outputs a fire detection signal, and outputs an alarm in response to the fire detection signal A fire alarm system for a house constructed by connecting an operating device for mask setting having a timer circuit section for measuring a preset timer time to a fire alarm body having an alarm circuit section. When the mask setting operation is performed from the mask operation device, the timer circuit is activated, and the fire detection function of the fire detection circuit section is stopped until the timer time elapses. Is prohibited.
That is, in the second aspect of the present invention, the mask setting operation is performed by a mask operating device separate from the fire alarm device.

The residential fire alarm according to claim 4, which is the third aspect of the present invention, is a residential fire alarm that detects a fire by heat and smoke detected through a fire detection opening and outputs an alarm from an alarm buzzer. And a mask mechanism having a detection unit blocking cover, and the detection unit blocking cover is attached to the fire detection opening so as to be freely opened and closed. When the mask mechanism is operated, a predetermined time is set in advance. In the meantime, the detection section blocking cover operates to close the fire detection opening .
According to claim 5, further comprising a return means for automatically returning to claim 4 fraud and mitigating risk blocking cover that closes the opening and an alarm buzzer fire detection.
These third inventions have a mask mechanism including a shut-off cover for closing the fire detection opening and the alarm buzzer. The operation of the mask mechanism temporarily blocks the buzzer and the fire detection opening. It is something that can be done.

According to claim 6, in any one of claims 1, 2, 4, and 5, the mask notification for notifying that the mask is being operated while the alarm output is prohibited by the operation of the mask setting switch or the operation of the mask mechanism. Means are further provided.
According to a seventh aspect of the present invention , in the third aspect, the mask operator further includes a mask notifying means for notifying that the mask is being operated while the alarm output is prohibited by the mask setting operation.

The fire alarm for a house according to claim 1 has a timer activated by operating a mask setting switch, and the alarm function does not operate during the timer, so there is a possibility that non-fire reports due to pest control etc. may occur. When there is, non-fire reports can be prevented by masking in advance. In addition, it is highly convenient because it is not necessary to remove the battery or the main body of the alarm to prevent the occurrence of non-fire reports.
According to the second aspect, since the mask setting switch is used in combination with the test switch and the masking function is enabled by a predetermined operation, it is not necessary to provide a new switch to prohibit the alarm output.

  Since the fire alarm system for houses according to claim 3 is connected to the fire alarm body as a separate operation device for mask operation, the same effect as in claim 1 can be obtained, and a plurality of fire alarms can be obtained. If a single controller is provided for a fire alarm, the alarm output should be prohibited for all fire alarms, such as by stopping the supply of power to multiple connected fire alarms. Can do.

According to claim 4, since the detection section blocking cover that closes the fire detection opening by the mask operation is provided, the fire detection function of the fire alarm is disabled when the occurrence of non-fire information is known in advance. Thus, the occurrence of non-fire reports can be prevented .
In the claims 5, since further comprising a return means for automatically returning to the original position of the blocking cover the nonconductive state after a certain time, it is a situation in which a fire alarm is not operating properly by the return operation forget Can be prevented.

In the claims 6 and 7, since a structure indicating that a the mask, it is possible to fire alarm easily check if in normal operation.

  Embodiments of the present invention will be described below with reference to the drawings. In the following, three embodiments corresponding to the first to third aspects of the present invention will be sequentially described.

FIG. 1 is an external view and a basic circuit configuration diagram showing an example of a residential fire alarm according to the first aspect of the present invention.
(A) shows the external appearance of the fire alarm 10A for houses. As shown in the drawing, a pull string 15 is attached to the alarm device 10A, and a pulling operation of the string 15 prohibits alarm output (masking function). That is, this drawstring constitutes an operating means for the mask setting switch.
Moreover, (b) is a basic circuit block diagram which shows the principal part structure of 10 A of fire alarms for houses. This fire alarm 10A controls each part, and also comprises a control means (CPU) 11 constituting an alarm output prohibition control circuit for carrying out the present invention, a fire detection circuit 12 for detecting a fire, an alarm for notifying a fire The circuit 13 includes a circuit 13, a timer circuit 14, a mask setting switch 15, a mask notification means 16 constituted by a mask lamp, a buzzer, etc. Note that the wiring between the above-described units and the power supply circuit 17 is omitted.

In this residential fire alarm 10A, when the mask setting switch 15 is operated, alarm output is prohibited. The flowchart of FIG. 2 shows the alarm output prohibiting operation.
When the mask setting switch 15 is operated, the CPU 11 issues a command to stop the fire detection function to the fire detection circuit 12 to stop the alarm output, start the timer circuit 14 and to notify the mask operation. 16 is sounded to turn on the mask lamp 16 (100 to 104). When the time is up, the fire detection function is enabled, the buzzer is stopped, the mask lamp 16 is turned off, and the alarm device 10A is returned to the normal state (105 to 108).
Although the fire detection circuit 12 is stopped and restarted here, an alarm stop / restart signal may be output to the alarm circuit 13. Further, the supply of power may be stopped and restarted.

  Thus, according to the alarm device of the present invention, since it has a masking function for prohibiting alarm output for a certain period of time, it is possible to prevent occurrence of non-fire reports due to pest control smoke and the like that can be predicted in advance. Further, since only the switch is operated, troublesome processing such as removing the battery or removing the main body is not required. In addition, after the timer, the mask is automatically removed and the original alarm monitoring state is restored, so there is no fear of being left unmasked. Further, since the buzzer 16 sounds and the mask lamp 16 is lit during the masking time, the user can easily confirm that the mask is being masked.

  Further, the mask setting switch 15 is not limited to a drawstring, and a push button or a slide lever may be configured as an operation means. In addition, the CPU 11 may also be used as an alarm test pull string. In this case, the CPU 11 performs a special operation such as a test start signal when the pull string is pulled once within a predetermined time, and a special operation such as double pulling or long pulling within the predetermined time. Is determined as a masking start signal. As a result, an easy-to-operate pull string can be shared with the ceiling fixture, and there is no need to provide an extra operation member.

FIG. 3 is a system configuration diagram showing an example of a residential fire alarm system according to the second aspect of the present invention.
In this embodiment, a mask operating device 20 that is separate from the alarm device main body is provided for mask setting. In this system, a common mask operator 20 is connected to a plurality of residential fire alarm main bodies 10B, 10B. In addition to the mask operation switch 25, the mask operation device 20 includes mask notification means 26 such as a mask lamp and a buzzer, a CPU (not shown), and a timer circuit (not shown). In addition, although the house fire alarm device 10B and the mask operation device 20 are connected by a signal line (wired connection) in the illustrated example, they may be connected wirelessly such as weak radio waves or infrared rays.
When the mask operation switch 25 is operated, the CPU built in the mask operation device 20 outputs an alarm output stop command signal to all connected fire alarm devices 10B. Instead of such a configuration, the fire alarm main body 10B may be supplied with power from the mask operating device 20 and cut off the power supply only during a period during which the masking function is executed.

With such a system configuration, the fire alarm main body 10B does not need to be provided with a timer circuit necessary for the masking process, and a conventional fire alarm can be substituted. Since the operation of the masking function is the same as that of the first embodiment, the flowchart is omitted. Further, since all the alarm devices are masked by one operation switch, it is very easy for the user to use.
Note that the fire alarm main body 10B to which the mask operation device 20 is connected may be individually provided with a mask operation switch, that is, a masking function. That is, according to this configuration, the mask can be set at the same time or can be set individually.

FIG. 4 is an explanatory diagram of a residential fire alarm according to the third aspect of the present invention. (A) is a figure which shows the normal monitoring state which does not perform a mask function, (b) is explanatory drawing which shows the state which is performing the mask function.
In the present embodiment, the residential fire alarm 30 includes a detection unit 31 having a fire detection opening 32, an alarm buzzer 34 for notifying a fire, a test pull string 37, a mask operation switch 36, and an opening. And a mask mechanism including a blocking cover 33 and a blocking cover 35 for buzzer.

In the illustrated example, the mask operation switch 36 is slid in the direction of the arrow. When this is operated, either or both of the opening blocking cover 33 and the buzzer blocking cover 35 are in the standby position. To the mask position, the fire detection opening 32 and the alarm buzzer 34 are closed. The blockage here may be such that the fire detection unit cannot detect the cause of the fire and that a large alarm sound is not output even if the alarm buzzer sounds. Such a closing operation can disable the fire detection function or reduce the buzzer sound when the occurrence of a non-fire report is known in advance.
The opening blocking cover 33 stands by at an appropriate place where the detection unit 31 is not open.

The mask mechanism may be driven electrically or mechanically. Further, remote operation may be possible with an operation device separate from the alarm device or a remote controller. Of course, the covers 33 and 35 may be manually slid directly. Further, although the mask operation switches are shown as common ones, they may be provided individually. Further, it may be a drawstring or may be used as a test drawstring.
Further, the opening blocking cover 33 and the buzzer blocking cover 35 are automatically returned to their original positions after a certain period of time by the return of mechanical mechanisms such as a spring and electrical mechanisms such as a timer and an actuator. It comes to return.

(A) is an external view showing an example of a residential fire alarm according to the first aspect of the present invention, and (b) is a basic circuit configuration diagram thereof. Flow chart showing basic operation of first or second invention The basic block diagram which shows an example of the fire alarm system for houses of 2nd this invention The fire alarm for houses of the 3rd present invention is shown, (a) is a figure showing the usual monitoring state which does not perform a mask function, and (b) is an explanatory view showing the state where a mask function is performed.

Explanation of symbols

10A Residential fire alarm 11 Alarm output prohibition control circuit 12 Fire detection circuit 13 Alarm circuit 14 Timer circuit 15 Mask setting switch 16 Mask notification means 17 Power supply circuit 10B Residential fire alarm body 20 Mask operator 25 Mask setting switch 26 Mask Notification means (mask light, buzzer)
30 Home Fire Alarm 31 Detection Unit 32 Fire Detection Opening 33 Opening Blocking Cover 34 Alarm Buzzer 35 Buzzer Blocking Cover 36 Mask Operation Switch

Claims (7)

A fire detection circuit unit that detects a fire by heat and smoke and outputs a fire detection signal, an alarm circuit unit that outputs an alarm in response to the fire detection signal, a timer circuit unit that measures a preset timer time, and a mask With a setting switch,
When the mask setting switch is operated, the timer circuit is activated, and the fire detection function of the fire detection circuit unit is stopped and the alarm output is prohibited until the timer time elapses. For fire alarm. In claim 1,
The above-mentioned mask setting switch is a residential fire alarm that is also used as a test switch. Set a preset timer time on the fire alarm body that has a fire detection circuit that detects a fire with heat and smoke and outputs a fire detection signal, and an alarm circuit that outputs a warning in response to the fire detection signal. A fire alarm system for a house constructed by connecting an operating device for mask setting equipped with a timer circuit section for timing,
When a mask setting operation is performed from the mask operation device, the fire detection function of the fire detection circuit unit is stopped until the timer circuit is started and the timer time elapses. Residential fire alarm system that prohibits alarm output. In a residential fire alarm that detects a fire with heat and smoke sensed through a fire detection opening and outputs an alarm from an alarm buzzer,
It is equipped with a mask mechanism with a detection unit blocking cover, and this detection unit blocking cover is attached to the fire detection opening so as to be freely opened and closed.
When the mask mechanism is operated, during a predetermined preset time, with the fire detection function is stopped at Rukoto occlude the fire detection opening the detecting unit blocking cover is operated, the alarm output Residential fire alarms that are prohibited . Oite to claim 4,
A residential fire alarm further comprising return means for automatically returning the blocking cover after the closing operation for the predetermined time. In any one of Claims 1, 2 , 4 , and 5 ,
While it prohibits more alarm output to the operation of the operation or the mask mechanism described above mask setting switch, further comprising in that, residential fire alarm mask informing means for informing that it is the mask. In claim 3,
The above-mentioned mask operation device further includes a mask notification means for notifying that the mask is being operated while the alarm output is prohibited by the mask setting operation.

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