JP2016224928A - Fire receiver - Google Patents

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JP2016224928A
JP2016224928A JP2016096167A JP2016096167A JP2016224928A JP 2016224928 A JP2016224928 A JP 2016224928A JP 2016096167 A JP2016096167 A JP 2016096167A JP 2016096167 A JP2016096167 A JP 2016096167A JP 2016224928 A JP2016224928 A JP 2016224928A
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circuit
battery
power supply
fire
fire receiver
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拓海 荒木
Takumi Araki
拓海 荒木
俊 姜
Jun Jiang
俊 姜
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Nohmi Bosai Ltd
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Nohmi Bosai Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a fire receiver capable of shortening an operation time when being powered OFF.SOLUTION: The present invention relates to a fire receiver 1 which performs fire alarming processing upon the basis of a fire signal from a fire sensor connected through a transmission line, the fire receiver 1 comprising: a power circuit 22 which converts commercial electric power into control electric power and supplies it to a circuit in the fire receiver 1; a battery 30; a connection circuit 32 which connects the battery 30 and the circuit in the fire receiver 1 to each other when supply of the commercial electric power to the power circuit 22 is ceased; a battery monitoring circuit 35 which monitors the voltage across the battery 30 input through a voltage dividing circuit 34 dividing the voltage across the battery 30, and disconnects the connection circuit 32 when the voltage across the battery 30 drops below a threshold; and a switch 36 for monitoring circuits which short-circuits a path connecting an input side of the voltage dividing circuit 34 and the battery monitoring circuit 35 to each other.SELECTED DRAWING: Figure 2

Description

本発明は、予備電源として電池を備えた火災受信機に関する。   The present invention relates to a fire receiver having a battery as a standby power source.

従来、火災感知器からの火災検出信号に基づいて火災発報処理を行う火災受信機として、商用交流電源から電力を制御回路に供給する電源回路部と、予備電源としてのバッテリーを備えた火災受信機が提案されている（例えば、特許文献１参照）。   Conventionally, as a fire receiver that performs fire alarm processing based on a fire detection signal from a fire detector, a power receiving circuit unit that supplies power from a commercial AC power source to a control circuit and a battery that serves as a backup power source A machine has been proposed (see, for example, Patent Document 1).

特開２００２−１０９６５１号公報（第５頁、第６頁）JP 2002-109651 A (pages 5 and 6)

火災受信機の定期点検や部品交換を行うときには、火災受信機内の回路への電源供給を絶って火災受信機をシャットダウンさせる必要がある。上記特許文献１に記載の火災受信機では、火災受信機内の回路への電源供給を絶つためには、商用交流電源と電源回路部とを接続する電源スイッチをＯＦＦにし、さらに、バッテリーを取り外す必要がある。しかし、バッテリー（電池）を取り外す作業は、接続線プラグのプラスとマイナスが短絡しないように十分注意しながらプラグを取り外し、取り外したプラグに絶縁テープを巻いて保護する必要があり、手間がかかっていた。また、バッテリー（電池）の短絡が生じないように取り外し作業を行うために作業者に大きな負担がかかっていた。   When performing periodic inspections and replacement of parts of the fire receiver, it is necessary to shut off the fire receiver by shutting off the power supply to the circuits in the fire receiver. In the fire receiver described in Patent Document 1, in order to cut off the power supply to the circuit in the fire receiver, it is necessary to turn off the power switch that connects the commercial AC power supply and the power supply circuit unit, and to remove the battery. There is. However, when removing the battery, it is necessary to remove the plug while paying careful attention not to short-circuit the positive and negative of the connection plug, and to wrap the removed plug with insulating tape to protect it. It was. In addition, a heavy burden is placed on the operator to perform the removal work so as not to cause a short circuit of the battery.

本発明は、上記のような課題を背景としてなされたものであり、火災受信機内の回路への電源供給を絶つときの作業時間を短縮することができる火災受信機を提供するものである。   The present invention has been made against the background of the above problems, and provides a fire receiver that can shorten the work time when power supply to a circuit in the fire receiver is cut off.

本発明の火災受信機は、伝送線を介して接続された火災感知器からの火災信号に基づいて火災報知処理を行う火災受信機であって、商用電源を制御電源に変換して前記火災受信機内の回路に供給する電源回路と、電池と、前記電源回路への前記商用電源の供給が停止された場合に、前記電池と前記火災受信機内の回路とを接続する接続回路と、前記電池の電圧を分圧する分圧回路を介して入力される前記電池の電圧を監視し、前記電池の電圧が閾値を下回った場合に、前記接続回路を遮断する電池監視回路と、前記分圧回路の入力側と前記電池監視回路とを接続する経路を短絡させる監視回路用スイッチと、を備えたものである。   The fire receiver of the present invention is a fire receiver that performs a fire alarm process based on a fire signal from a fire detector connected via a transmission line, and converts the commercial power source into a control power source to receive the fire receiver. A power supply circuit that supplies power to an in-machine circuit; a battery; and a connection circuit that connects the battery and a circuit in the fire receiver when supply of the commercial power to the power supply circuit is stopped; and A battery monitoring circuit that monitors the voltage of the battery that is input via a voltage dividing circuit that divides the voltage, and that cuts off the connection circuit when the voltage of the battery falls below a threshold, and an input of the voltage dividing circuit And a monitoring circuit switch for short-circuiting a path connecting the battery monitoring circuit to the battery.

本発明の火災受信機は、火災受信機内の回路への電源供給を絶つときに電池を取り外す必要がない。このため、火火災受信機内の回路への電源供給を絶つときの作業時間を従来よりも短縮することができ、また、電池の短絡を防止できる。   The fire receiver of the present invention does not require removal of the battery when the power supply to the circuit in the fire receiver is cut off. For this reason, the working time when the power supply to the circuit in the fire / fire receiver is cut off can be shortened as compared with the prior art, and a short circuit of the battery can be prevented.

実施の形態に係る火災受信機の概略構成図である。It is a schematic block diagram of the fire receiver which concerns on embodiment. 実施の形態に係る火災受信機の電源回路基板の回路構成図である。It is a circuit block diagram of the power supply circuit board of the fire receiver which concerns on embodiment.

本発明に係る火災受信機の実施の形態を、図面に基づいて説明する。なお、以下に示す図面の形態によって本発明が限定されるものではない。   An embodiment of a fire receiver according to the present invention will be described with reference to the drawings. In addition, this invention is not limited by the form of drawing shown below.

実施の形態．
図１は、実施の形態に係る火災受信機の概略構成図である。火災受信機１は、伝送線１０を介して、火災感知器１１、警報装置１２、及び防排煙装置１３と接続されている。火災感知器１１は、熱、煙、赤外線放射、紫外線放射、燃焼ガス等の火災に起因する物理現象を検出し、火災信号を出力する。警報装置１２は、火災受信機１からの信号に基づいて音響警報や視覚的な警報を出力する装置であり、例えば、ベル、スピーカ、フラッシュライト等である。防排煙装置１３は、火災受信機１からの信号に基づいて煙や炎を防ぐ装置であり、例えば、防火扉、シャッター等である。なお、伝送線１０には、火災受信機１と他の機器との間に介在して信号を中継する中継器が設けられる場合もある。 Embodiment.
FIG. 1 is a schematic configuration diagram of a fire receiver according to an embodiment. The fire receiver 1 is connected to a fire detector 11, an alarm device 12, and a smoke prevention device 13 via a transmission line 10. The fire detector 11 detects a physical phenomenon caused by a fire such as heat, smoke, infrared radiation, ultraviolet radiation, and combustion gas, and outputs a fire signal. The alarm device 12 is a device that outputs an acoustic alarm or a visual alarm based on a signal from the fire receiver 1, and is, for example, a bell, a speaker, or a flashlight. The smoke prevention device 13 is a device that prevents smoke and flames based on a signal from the fire receiver 1, and is, for example, a fire door, a shutter, or the like. The transmission line 10 may be provided with a repeater that relays signals interposed between the fire receiver 1 and other devices.

火災受信機１は、伝送線１０を介して火災信号を受信すると火災発報処理を行う。火災受信機１は、操作入力装置２、表示装置３、印刷装置４、伝送装置５、通信装置６、制御装置７、及び電源回路基板２０を備えている。操作入力装置２は、例えばタッチパネル、ハードウェアスイッチ、ボタン等の使用者からの操作入力を受け付ける装置である。表示装置３は、火災感知器１１が感知した火災に関する情報、複数の火災感知器１１の状態を示す情報等を表示する。表示装置３は、例えば、液晶表示画面やランプ等を備える。印刷装置４は、火災発報情報を印字する装置である。伝送装置５は、伝送線１０を介して信号を送受信する通信インタフェースである。通信装置６は、パーソナルコンピュータ、専用端末、表示機等の外部機器と信号を送受信する通信インタフェースである。   When the fire receiver 1 receives a fire signal via the transmission line 10, the fire receiver 1 performs fire alarm processing. The fire receiver 1 includes an operation input device 2, a display device 3, a printing device 4, a transmission device 5, a communication device 6, a control device 7, and a power circuit board 20. The operation input device 2 is a device that accepts an operation input from a user such as a touch panel, a hardware switch, and a button. The display device 3 displays information on the fire detected by the fire detector 11, information indicating the states of the plurality of fire detectors 11, and the like. The display device 3 includes, for example, a liquid crystal display screen and a lamp. The printing device 4 is a device that prints fire alarm information. The transmission device 5 is a communication interface that transmits and receives signals via the transmission line 10. The communication device 6 is a communication interface that transmits and receives signals to and from external devices such as a personal computer, a dedicated terminal, and a display device.

制御装置７は、火災受信機１全体の動作を制御する。制御装置７は、例えばマイコンや制御回路で構成される演算部と、演算部を動作させるためのプログラム及び演算部の演算処理に用いられるデータを保持する記憶部とを有する。また、制御装置７は、火災発報処理を司る。ここで火災発報処理は、火災の発生を使用者に知らせる処理の総称であり、警報装置１２に警報を出力させる処理、防排煙装置１３を動作させる処理、及び表示装置３に火災を検出した火災感知器１１の識別情報や設置場所等の情報を表示させる処理を含む。火災受信機１からの発報処理に係る信号を受信した警報装置１２及び防排煙装置１３は、予め定められた動作を行う。   The control device 7 controls the operation of the entire fire receiver 1. The control device 7 includes, for example, a calculation unit configured by a microcomputer or a control circuit, and a storage unit that holds a program for operating the calculation unit and data used for calculation processing of the calculation unit. Moreover, the control apparatus 7 manages a fire alarm process. Here, the fire alarm process is a general term for a process for notifying the user of the occurrence of a fire, a process for outputting an alarm to the alarm device 12, a process for operating the smoke evacuation device 13, and a fire on the display device 3. The process includes displaying the identification information of the fire detector 11 and information such as the installation location. The alarm device 12 and the smoke evacuation device 13 that have received the signal related to the alarm processing from the fire receiver 1 perform a predetermined operation.

電源回路基板２０は、商用交流電源からの電力供給を受け、火災受信機１内の操作入力装置２、表示装置３、印刷装置４、伝送装置５、制御装置７、及び通信装置６で使用する電源、及び火災感知器１１、警報装置１２、及び防排煙装置１３等の外部接続機器で使用する電源を作り出す。   The power supply circuit board 20 is supplied with power from a commercial AC power supply and is used in the operation input device 2, the display device 3, the printing device 4, the transmission device 5, the control device 7, and the communication device 6 in the fire receiver 1. A power source and a power source used for externally connected devices such as the fire detector 11, the alarm device 12, and the smoke prevention device 13 are created.

図２は、実施の形態に係る火災受信機の電源回路基板の回路構成図である。電源回路基板２０は、商用交流電源と接続される端子台２１と、交流電源を整流して直流電源を出力する整流回路を有し直流電源を制御電源として火災受信機１内の回路に供給する電源回路２２と、端子台２１と電源回路２２とを接続する回路上に設けられ、端子台２１と電源回路２２とを結ぶ回路を接続又は遮断する商用電源用スイッチ２３とを備える。商用電源用スイッチ２３はオルタネートスイッチであり、使用者が商用電源用スイッチ２３をＯＮ／ＯＦＦすることで、商用交流電源から電源回路２２への電源の供給／供給停止を切り替えることができる。直流電源を出力する電源回路２２の出力側は、電源切替リレー２４を介してコネクタ２５及び端子台２６に接続されている。電源回路２２から出力される直流電源は、コネクタ２５を介して、火災受信機１の内部用の回路（例えば操作入力装置２等の電源基板）に供給される。また、本実施の形態では、電源２２からの直流電源は、端子台２６を介して火災感知器１１等の外部接続機器に外部接続機器用電源として供給される。なお、火災感知器１１等の外部接続機器へは、火災受信機１から電源を供給しない構成とすることもできる。   FIG. 2 is a circuit configuration diagram of the power supply circuit board of the fire receiver according to the embodiment. The power supply circuit board 20 has a terminal block 21 connected to a commercial AC power supply and a rectifier circuit that rectifies the AC power supply and outputs a DC power supply, and supplies the DC power supply to a circuit in the fire receiver 1 as a control power supply. The power supply circuit 22 is provided on a circuit that connects the terminal block 21 and the power supply circuit 22, and includes a commercial power supply switch 23 that connects or disconnects a circuit connecting the terminal block 21 and the power supply circuit 22. The commercial power switch 23 is an alternate switch, and the user can switch between supply / stop of power supply from the commercial AC power source to the power supply circuit 22 by turning the commercial power switch 23 ON / OFF. The output side of the power supply circuit 22 that outputs a DC power supply is connected to a connector 25 and a terminal block 26 via a power supply switching relay 24. The DC power output from the power supply circuit 22 is supplied to an internal circuit of the fire receiver 1 (for example, a power supply board of the operation input device 2 or the like) via the connector 25. In the present embodiment, the DC power from the power source 22 is supplied to the external connection device such as the fire detector 11 through the terminal block 26 as the power for the external connection device. In addition, it can also be set as the structure which does not supply power to the external connection apparatuses, such as the fire detector 11, from the fire receiver 1. FIG.

電源回路２２の出力側には、電源回路２２の電圧を抵抗分割により分圧する分圧回路２７を介して電源監視回路２８が接続されている。電源監視回路２８は、分圧回路２７を介して入力される電圧をコンパレータ等により監視して第１閾値と比較し、比較結果に応じて電源切替リレー２４の接続状態を切り替える。この電源監視回路２８は、電源回路２２からの電圧が第１閾値以上であれば電源回路２２の出力側とコネクタ２５及び端子台２６とを接続するように電源切替リレー２４を制御する。商用交流電源に停電が生じた場合等、電源監視回路２８に入力される電圧が第１閾値を下回ると、電源監視回路２８は電源切替リレー２４の接点を切り替えて、予備電源としての電池３０の出力側の回路とコネクタ２５及び端子台２６とを接続する。   A power supply monitoring circuit 28 is connected to the output side of the power supply circuit 22 via a voltage dividing circuit 27 that divides the voltage of the power supply circuit 22 by resistance division. The power monitoring circuit 28 monitors the voltage input via the voltage dividing circuit 27 with a comparator or the like, compares it with the first threshold value, and switches the connection state of the power switching relay 24 according to the comparison result. The power supply monitoring circuit 28 controls the power supply switching relay 24 to connect the output side of the power supply circuit 22 to the connector 25 and the terminal block 26 if the voltage from the power supply circuit 22 is equal to or higher than the first threshold value. When the voltage input to the power supply monitoring circuit 28 falls below the first threshold, such as when a power failure occurs in the commercial AC power supply, the power supply monitoring circuit 28 switches the contact of the power supply switching relay 24 and the battery 30 as a standby power supply The circuit on the output side is connected to the connector 25 and the terminal block 26.

予備電源としての電池３０は、電源回路基板２０に設けられた端子台３１に接続される。電池３０の端子台３１の出力側は、接続回路３２及び電源切替リレー２４を介してコネクタ２５及び端子台２６に接続されている。   The battery 30 as a standby power supply is connected to a terminal block 31 provided on the power supply circuit board 20. The output side of the terminal block 31 of the battery 30 is connected to the connector 25 and the terminal block 26 via the connection circuit 32 and the power supply switching relay 24.

電池３０の出力側には、電源切替リレー２４よりも下流側に、電池３０の電圧を抵抗分割により分圧する分圧回路３４を介して電池監視回路３５が設けられている。電池監視回路３５は、分圧回路３４を介して入力される電圧をコンパレータ等により監視して第２閾値と比較し、比較結果に応じて接続回路３２に設けられたリレー３３の接続状態を切り替える。この電池監視回路３５は、電池３０の電圧が第２閾値を下回ると、電池３０の出力側の接続回路３２に設けられたリレー３３をＯＦＦして電池３０を接続回路３２から切り離し、火災受信機１への電源供給をＯＦＦする。なお、電池３０の電圧の第２閾値は、火災受信機１の動作保証電圧とすることができ、例えば２０．４Ｖである。電池監視回路３５は、例えば停電により電池３０から火災受信機１内部の電源基板等に電源が供給されているときに、電池３０の電圧を監視し、電池３０の電圧が第２閾値を下回ると電池３０を接続回路３２から切り離して火災受信機１をシャットダウンさせる目的で設けられている。   On the output side of the battery 30, a battery monitoring circuit 35 is provided on the downstream side of the power supply switching relay 24 via a voltage dividing circuit 34 that divides the voltage of the battery 30 by resistance division. The battery monitoring circuit 35 monitors the voltage input via the voltage dividing circuit 34 with a comparator or the like, compares it with the second threshold value, and switches the connection state of the relay 33 provided in the connection circuit 32 according to the comparison result. . When the voltage of the battery 30 falls below the second threshold value, the battery monitoring circuit 35 turns off the relay 33 provided in the connection circuit 32 on the output side of the battery 30 to disconnect the battery 30 from the connection circuit 32, and the fire receiver Turn off the power supply to 1. In addition, the 2nd threshold value of the voltage of the battery 30 can be made into the operation guarantee voltage of the fire receiver 1, and is 20.4V, for example. The battery monitoring circuit 35 monitors the voltage of the battery 30 when power is supplied from the battery 30 to the power supply board or the like inside the fire receiver 1 due to a power failure, for example, and if the voltage of the battery 30 falls below the second threshold value. It is provided for the purpose of disconnecting the battery 30 from the connection circuit 32 and shutting down the fire receiver 1.

さらに本実施の形態では、分圧回路３４と電池監視回路３５とを接続する経路を短絡させる監視回路用スイッチ３６を備える。監視回路用スイッチ３６は常時ＯＦＦ状態で、押下されると接点をＯＮするタクトスイッチ等のモーメンタリスイッチである。監視回路用スイッチ３６がＯＮすると、分圧回路３４と電池監視回路３５とを接続する経路が短絡する。そうすると、電池監視回路３５は、電池３０の電圧が第２閾値を下回ったときと同じ状態を検出するため、リレー３３をＯＦＦして電池３０を接続回路３２から切り離す。   Furthermore, in the present embodiment, a monitoring circuit switch 36 that short-circuits a path connecting the voltage dividing circuit 34 and the battery monitoring circuit 35 is provided. The monitoring circuit switch 36 is a momentary switch such as a tact switch that is always in an OFF state and turns on a contact when pressed. When the monitoring circuit switch 36 is turned ON, the path connecting the voltage dividing circuit 34 and the battery monitoring circuit 35 is short-circuited. Then, the battery monitoring circuit 35 turns off the relay 33 and disconnects the battery 30 from the connection circuit 32 in order to detect the same state as when the voltage of the battery 30 falls below the second threshold.

定期点検や部品交換等のために火災受信機１内の回路への電源供給を絶つ場合の、作業者の操作手順及び電源回路基板２０の動作を説明する。通常時は、商用交流電源から電源回路２２に電源が供給されており、電源切替リレー２４は電源回路２２の出力側に接続されている状態である。このような状態において、作業者はまず、商用電源用スイッチ２３をＯＦＦする。このようにすると、商用交流電源からの電源供給が停止され、電源回路２２からの電圧が第１閾値を下回ったことを電源監視回路２８が検出し、電源監視回路２８は電源切替リレー２４の接点を電池３０の出力側に切り替える。   The operation procedure of the operator and the operation of the power supply circuit board 20 when the power supply to the circuit in the fire receiver 1 is cut off for periodic inspection or parts replacement will be described. Normally, power is supplied from the commercial AC power source to the power supply circuit 22, and the power supply switching relay 24 is connected to the output side of the power supply circuit 22. In such a state, the worker first turns off the commercial power switch 23. In this way, the power supply from the commercial AC power supply is stopped, the power supply monitoring circuit 28 detects that the voltage from the power supply circuit 22 has fallen below the first threshold, and the power supply monitoring circuit 28 is connected to the contact of the power supply switching relay 24. Is switched to the output side of the battery 30.

このとき、電池３０の出力側のリレー３３はＯＮ状態であり、電池３０の電圧が分圧回路３４を介して電池監視回路３５に入力されている。   At this time, the relay 33 on the output side of the battery 30 is in the ON state, and the voltage of the battery 30 is input to the battery monitoring circuit 35 via the voltage dividing circuit 34.

次に、作業者は、監視回路用スイッチ３６をＯＮする。そうすると、電池監視回路３５へ入力される電圧が０Ｖになって第２閾値を下回り、電池監視回路３５はリレー３３をＯＦＦする。リレー３３がＯＦＦになると、電池３０が接続回路３２から切り離されて電池３０からコネクタ２５及び端子台２６への電源供給が停止される。すなわち、本実施の形態では、監視回路用スイッチ３６をＯＮすることで、電池電圧が第２閾値を下回ったときと同じ状態を擬似的に生じさせ、電池電圧を監視する電池監視回路３５を利用して電池３０からの電源供給を停止させるのである。   Next, the worker turns on the monitoring circuit switch 36. If it does so, the voltage input into the battery monitoring circuit 35 will be 0V, will fall below a 2nd threshold value, and the battery monitoring circuit 35 will turn OFF the relay 33. FIG. When the relay 33 is turned off, the battery 30 is disconnected from the connection circuit 32 and the power supply from the battery 30 to the connector 25 and the terminal block 26 is stopped. In other words, in the present embodiment, by turning on the monitoring circuit switch 36, the same state as when the battery voltage falls below the second threshold is generated in a pseudo manner, and the battery monitoring circuit 35 that monitors the battery voltage is used. Thus, the power supply from the battery 30 is stopped.

このように本実施の形態によれば、作業者は、商用電源用スイッチ２３を押してＯＦＦし、さらに監視回路用スイッチ３６を押すだけで、火災受信機１内の回路への電源供給を停止させることができる。従来のように電池３０の接続線プラグを取り外し、取り外したプラグに絶縁テープを巻いて保護する作業と比較して、作業時間を大幅に短縮することができるとともに、電池３０の短絡を生じさせることもない。   As described above, according to the present embodiment, the operator presses the commercial power switch 23 to turn it OFF, and further presses the monitoring circuit switch 36 to stop the power supply to the circuit in the fire receiver 1. be able to. Compared with the work of removing the connecting wire plug of the battery 30 and winding the insulating tape around the removed plug to protect the battery 30 as in the past, the working time can be greatly shortened and the battery 30 is short-circuited. Nor.

ここで、電池３０からの電源供給を停止する他の手段として、商用交流電源の出力側に設けた商用電源用スイッチ２３と同様に、電池３０の出力側の接続をＯＮ／ＯＦＦするスイッチを設けることも考えられる。しかし、商用交流電源の電流（例えば約３Ａ）と比較すると一般に電池３０の使用電流（例えば約１２Ａ〜１５Ａ）は大きいため、その電流に耐えうるスイッチは形状が大きく、かつ高価である。そのようなスイッチを設けると、電源回路基板のサイズが大きくなり、また製造コストも上昇してしまう。一方、本実施の形態では、電池３０の電圧を抵抗分割により分圧して電池監視回路３５に入力する分圧回路３４を利用して監視回路用スイッチ３６を設けているので、監視回路用スイッチ３６は電池３０の使用電流に耐えうるようなスイッチと比較して小さなスイッチで実現することができる。このため、電源回路基板２０のサイズの大型化を防ぎ、また製造コストの上昇を抑えることができる。   Here, as another means for stopping the power supply from the battery 30, a switch for turning ON / OFF the connection on the output side of the battery 30 is provided in the same way as the commercial power switch 23 provided on the output side of the commercial AC power supply. It is also possible. However, since the use current (for example, about 12A to 15A) of the battery 30 is generally larger than the current of the commercial AC power supply (for example, about 3A), a switch that can withstand the current is large in shape and expensive. Providing such a switch increases the size of the power circuit board and increases the manufacturing cost. On the other hand, in the present embodiment, the monitoring circuit switch 36 is provided by using the voltage dividing circuit 34 that divides the voltage of the battery 30 by resistance division and inputs the divided voltage to the battery monitoring circuit 35. Can be realized with a small switch compared to a switch that can withstand the operating current of the battery 30. For this reason, the enlargement of the size of the power supply circuit board 20 can be prevented, and an increase in manufacturing cost can be suppressed.

１ 火災受信機、２ 操作入力装置、３ 表示装置、４ 印刷装置、５ 伝送装置、６ 通信装置、７ 制御装置、１０ 伝送線、１１ 火災感知器、１２ 警報装置、１３ 防排煙装置、２０ 電源回路基板、２１ 端子台、２２ 電源回路、２３ 商用電源用スイッチ、２４ 電源切替リレー、２５ コネクタ、２６ 端子台、２７ 分圧回路、２８ 電源監視回路、３０ 電池、３１ 端子台、３２ 接続回路、３３ リレー、３４ 分圧回路、３５ 電池監視回路、３６ 監視回路用スイッチ。   DESCRIPTION OF SYMBOLS 1 Fire receiver, 2 Operation input apparatus, 3 Display apparatus, 4 Printing apparatus, 5 Transmission apparatus, 6 Communication apparatus, 7 Control apparatus, 10 Transmission line, 11 Fire detector, 12 Alarm apparatus, 13 Smoke prevention apparatus, 20 Power supply circuit board, 21 terminal block, 22 power supply circuit, 23 switch for commercial power supply, 24 power supply switching relay, 25 connector, 26 terminal block, 27 voltage divider circuit, 28 power supply monitoring circuit, 30 battery, 31 terminal block, 32 connection circuit , 33 Relay, 34 Voltage divider circuit, 35 Battery monitoring circuit, 36 Monitoring circuit switch.

Claims (2)

伝送線を介して接続された火災感知器からの火災信号に基づいて火災報知処理を行う火災受信機であって、
商用電源を制御電源に変換して前記火災受信機内の回路に供給する電源回路と、
電池と、
前記電源回路への前記商用電源の供給が停止された場合に、前記電池と前記火災受信機内の回路とを接続する接続回路と、
前記電池の電圧を分圧する分圧回路を介して入力される前記電池の電圧を監視し、前記電池の電圧が閾値を下回った場合に、前記接続回路を遮断する電池監視回路と、
前記分圧回路の入力側と前記電池監視回路とを接続する経路を短絡させる監視回路用スイッチと、を備えた
ことを特徴とする火災受信機。 A fire receiver that performs fire alarm processing based on a fire signal from a fire detector connected via a transmission line,
A power supply circuit that converts commercial power into control power and supplies it to the circuit in the fire receiver;
Battery,
A connection circuit for connecting the battery and a circuit in the fire receiver when the supply of the commercial power to the power supply circuit is stopped;
A battery monitoring circuit that monitors the voltage of the battery that is input via a voltage dividing circuit that divides the voltage of the battery, and that cuts off the connection circuit when the voltage of the battery falls below a threshold;
A fire receiver comprising: a monitoring circuit switch for short-circuiting a path connecting the input side of the voltage dividing circuit and the battery monitoring circuit. 前記商用電源から前記電源回路への電力の供給及び供給停止を設定する電源用スイッチを備えた
ことを特徴とする請求項１記載の火災受信機。 The fire receiver according to claim 1, further comprising a power switch configured to set supply and stop of power supply from the commercial power supply to the power supply circuit.
JP2016096167A 2015-06-02 2016-05-12 Fire receiver Pending JP2016224928A (en)

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JP2019204394A (en) * 2018-05-25 2019-11-28 ホーチキ株式会社 Fire notification facilities

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JP2001268820A (en) * 2000-03-17 2001-09-28 Nittan Co Ltd Standby battery charging circuit
JP2002109651A (en) * 2000-09-28 2002-04-12 Hochiki Corp Fire alarm receiver
CN101752828B (en) * 2008-12-05 2012-07-18 鸿富锦精密工业（深圳）有限公司 Low-voltage protection device
CN103000964B (en) * 2012-12-04 2015-04-15 博科能源系统(深圳)有限公司 Controller of battery management system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019204394A (en) * 2018-05-25 2019-11-28 ホーチキ株式会社 Fire notification facilities
JP7129215B2 (en) 2018-05-25 2022-09-01 ホーチキ株式会社 Fire alarm equipment

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