JPH0442400A - Flame detection alarm with function of battery voltage detection - Google Patents
Flame detection alarm with function of battery voltage detectionInfo
- Publication number
- JPH0442400A JPH0442400A JP14945190A JP14945190A JPH0442400A JP H0442400 A JPH0442400 A JP H0442400A JP 14945190 A JP14945190 A JP 14945190A JP 14945190 A JP14945190 A JP 14945190A JP H0442400 A JPH0442400 A JP H0442400A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- detection
- voltage detection
- battery
- low voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 67
- 239000004065 semiconductor Substances 0.000 claims abstract description 17
- 230000005669 field effect Effects 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 4
- 230000007257 malfunction Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 description 1
Landscapes
- Fire-Detection Mechanisms (AREA)
- Emergency Alarm Devices (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明はマツチ、ライター、火災等の炎に含まれる紫
外線を検出して警報音を発するようにした炎検出警報器
に関するものであり、特に、電源として電池を使用した
場合に同電池の電圧（消耗度合い）を検出して、同電圧
が所定値まで低下すると警報器が鳴るようにしたもので
あり、例えば火災警報器に使用されるものである。[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a flame detection alarm device that detects ultraviolet rays contained in the flame of a match, lighter, fire, etc. and generates an alarm sound. , when a battery is used as a power source, the voltage (degree of depletion) of the battery is detected, and an alarm will sound when the voltage drops to a predetermined value, such as those used in fire alarms. It is.
（従来の技術）
火災警報器には従来より各種のものがある。その一つと
して紫外線センサ（ＵＶ管）により炎に含まれる紫外線
が検知されると警報を発生するようにしたものがある。(Prior Art) There have been various types of fire alarms. One of them is a system that generates an alarm when ultraviolet rays contained in a flame are detected by an ultraviolet sensor (UV tube).
このＵＶ管を利用した従来の火災警報器は電源に交流電
源が使用されているため、商用電源の無い場所では使用
できず、また大型で、しかも重いため所望とする箇所に
取付けに＜＜、取付は箇所が制約されるという問題があ
った。Conventional fire alarms using UV tubes use AC power as their power source, so they cannot be used in places without commercial power supply, and they are large and heavy, making them difficult to install in the desired location. There was a problem in that the mounting locations were restricted.
そこで本件出願人は電源に電池を使用するＵＶ管制用の
火災警報器を現在開発中である。しかしＵＶ管の駆動に
はＤＣ３００〜４００Ｖ程度の電圧が必要であるため、
数Ｖの電池電圧をそのまま使用したのではＵＶ管が駆動
しない。電池電圧でＵＶ管を駆動するためには、電池電
圧をＤＣＤＣコンバータ回路によりＵＶ管の駆動電圧ま
で昇圧しなければならなない。この場合、ＤＣｌ）Ｃコ
ンバータ回路の消費電流の大きさがほぼそのまま電池の
寿命になる。しかも一般にＤＣＤＣコンバータ回路は消
費電流ががなり大きい（８５μＡ、３０ｍＡ）ので、電
池の消耗が激し７Ｘ０
電池を電源とする火災警報器では電池が消耗して電圧が
所定値より低下すると、誤動作したり、火災が発生して
も動作しなかったりすることがある。これでは火災警報
器としての機能が充分に発揮されず、信頼性に欠ける。Therefore, the applicant is currently developing a fire alarm for UV control that uses batteries as a power source. However, since a voltage of about 300 to 400 VDC is required to drive a UV tube,
If the battery voltage of several volts is used as is, the UV tube will not operate. In order to drive the UV tube with battery voltage, the battery voltage must be boosted to the UV tube driving voltage using a DC/DC converter circuit. In this case, the amount of current consumed by the DCl)C converter circuit almost directly determines the battery life. Moreover, DCDC converter circuits generally consume a large amount of current (85μA, 30mA), which causes rapid battery consumption.In fire alarms powered by 7X0 batteries, if the battery is exhausted and the voltage drops below a predetermined value, it may malfunction. or may not operate even if a fire occurs. In this case, the function as a fire alarm is not fully demonstrated, and reliability is lacking.
そのため火災警報器の保守管理上、電池の消耗を事前に
検知する必要がある。そのためには既存の低電圧検出Ｉ
Ｃを使用して電池の消耗を検知することか考えられる。Therefore, in order to maintain and manage fire alarms, it is necessary to detect battery consumption in advance. For this purpose, the existing low voltage detection I
It is conceivable to use C to detect battery depletion.
（発明が解決しようとする課題）
しかし、既存の低電圧検出ＩＣは検出電圧値の設定にあ
まり自由度がないため、同低電圧検出ＩＣをそのまま使
用したのでは電池電圧を検出することが難しい。そこで
本件発明者が鋭意検討した結果、第２図のように抵抗Ｒ
１、Ｒ２により検知電圧（電池電圧）を分圧して低電圧
検出ＩＣに人力すれば既存の低電圧検出ＩＣを使用して
電池電圧を検出することができることを見出した。(Problem to be solved by the invention) However, existing low voltage detection ICs do not have much flexibility in setting the detection voltage value, so it is difficult to detect battery voltage if the same low voltage detection ICs are used as they are. . Therefore, as a result of intensive study, the inventor of the present invention found that the resistance R is as shown in Figure 2.
1. It has been found that the battery voltage can be detected using an existing low voltage detection IC by dividing the detection voltage (battery voltage) using R2 and inputting it manually to the low voltage detection IC.
しかし、この場合、抵抗Ｒ１、Ｒ２の抵抗値が低電圧検
出ＩＣの人力抵抗よりも大きいため、同抵抗Ｒ１，Ｒ２
が低電圧検出ＩＣの人力抵抗に影響を及ぼして誤動作の
原因となる、という問題があった。However, in this case, since the resistance values of the resistors R1 and R2 are larger than the human resistance of the low voltage detection IC, the resistors R1 and R2
There is a problem in that this affects the human resistance of the low voltage detection IC, causing malfunction.
また、火災報知器において確実な動作を保証するために
は、９■の電池を使用した場合に５４■よりも高い電圧
値を使用可能な限界電圧（終止電圧）とし、この終止電
圧を検出して何らかの警報を発する必要がある。しかし
、既存の低電圧検出ＩＣでは回路設計の都合上、５．２
Ｖ程度までは検出可能であるがそれ以上の電圧は検出で
きないため、所望とする終止電圧を検出することが不可
能であった。In addition, in order to ensure reliable operation of a fire alarm, when using a 9-inch battery, a voltage higher than 54-inch is set as the usable limit voltage (final voltage), and this final voltage is detected. It is necessary to issue some sort of warning. However, due to circuit design in existing low voltage detection ICs, 5.2
Although it is possible to detect voltages up to approximately V, it is not possible to detect voltages higher than that, making it impossible to detect a desired final voltage.
（発明の目的）
本発明の目的は１）１１記の諸問題を解決し、既存の低
電圧検出ＩＣを用いて、その最大検知可能電圧（例えば
５２Ｖ）よりも高い終止電圧を検出できるようにした電
池電圧検出機能付き炎検出警報器を提供することにある
。(Objective of the Invention) The object of the present invention is 1) to solve the problems listed in item 11, and to make it possible to detect a final voltage higher than the maximum detectable voltage (for example, 52V) using an existing low voltage detection IC. An object of the present invention is to provide a flame detection alarm with a battery voltage detection function.
（課題を解決するための手段）
本発明のうち請求項第１の電池電圧検出機能イτ１き炎
検出警報器は、第１図のように電源に電池Ｅが使用され
、同電池Ｅの終止電圧を検出する低電圧検出ＩＣＩが設
けられ、炎に含まれる紫外線が図示されていないＬＩＶ
管により検出されると警報を発するようにした炎検出警
報器において、前記低電圧検出■Ｃ１の入力段に半導体
素子２を設け、同半導体素子２の入力段に同半導体素子
２への入力電圧（電池電圧）を分圧する抵抗ＲＲ２を設
けてなるものである。(Means for Solving the Problems) A flame detection alarm device with a battery voltage detection function τ1 according to claim 1 of the present invention uses a battery E as a power source as shown in FIG. A low voltage detection ICI is provided to detect the voltage, and the ultraviolet rays contained in the flame are not shown in the LIV.
In a flame detection alarm device which issues an alarm when detected by a pipe, a semiconductor element 2 is provided at the input stage of the low voltage detection C1, and an input voltage to the semiconductor element 2 is provided at the input stage of the semiconductor element 2. A resistor RR2 is provided to divide the voltage (battery voltage).
本発明のうち請求項第２の電池電圧検出機能付き炎検出
警報器は、第１図のように前記半導体素子２として電解
効果トランジスタＦＥＴが使用され、同電解効果トラン
ジスタＦＥＴのゲートと接地間及び電源間に前記分圧用
の抵抗Ｒ＋、Ｒ２が配されと、同電解効果トランジスタ
ＦＥＴのソースと接地間にコンデンサＣが配されてなる
ものである。According to a second aspect of the present invention, a flame detection alarm with a battery voltage detection function uses a field effect transistor FET as the semiconductor element 2, as shown in FIG. The voltage dividing resistors R+ and R2 are arranged between the power supplies, and a capacitor C is arranged between the source of the field effect transistor FET and ground.
（作用）
本発明の電池電圧検出機能付き炎検出警報器では電池Ｅ
の終止電圧を検出する低電圧検出ＩＣＩの入力段に、電
解効果トランジスタＦ ＩＥ”Ｉ’等の１′。(Function) In the flame detection alarm device with battery voltage detection function of the present invention, the battery E
At the input stage of the low voltage detection ICI that detects the final voltage of the field effect transistor FIE"I", etc. 1'.
導体素子２を設けたので、同半導体素子２と低電圧検出
ＩＣ１の人カインビーグンスをマツチングさせておけば
、半導体素子２の入力段に分圧用の抵抗Ｒ１、Ｒ２を入
れても低電圧検出ＩＣＩの入力抵抗に影響がなく、誤動
作の虞れがない。Since the conductor element 2 is provided, if the characteristics of the semiconductor element 2 and the low voltage detection IC 1 are matched, even if the voltage dividing resistors R1 and R2 are inserted in the input stage of the semiconductor element 2, the low voltage detection IC It does not affect the input resistance and there is no risk of malfunction.
また、分圧用の抵抗Ｒ１、Ｒ２の抵抗値を変えることに
より半導体素子２を介して低電圧検出■Ｃ１に人力され
る電圧を、同低電圧検出ＩＣＩの検出可能電圧まで充分
に降圧することができるため、例えば、検出可能な最大
電圧が約５．２■の低電圧検出ＩＣＩを用いて、９■の
電池の５，４Ｖの終止電圧を検出することもできる。In addition, by changing the resistance values of the voltage dividing resistors R1 and R2, it is possible to sufficiently step down the voltage applied to the low voltage detection C1 via the semiconductor element 2 to a voltage that can be detected by the low voltage detection ICI. Therefore, for example, by using a low voltage detection ICI whose maximum detectable voltage is approximately 5.2V, it is also possible to detect the final voltage of 5.4V of a 9V battery.
（実施例）
本発明の電池電圧検出機能付き炎検出警報器の実施例を
示１−第１図において、ｖｏは電池の電源電圧、Ｒ１、
Ｒ２は分圧用の抵抗、ＦＥＴは電解効果トランジスタ（
半導体素子）、Ｃ電圧Ｖｓの急激な電圧低下を防止する
ための電解コンデンサ、ｌは低電圧検出ＩＣ，ｖｏは低
電圧検出ＩＣの出力電圧である。(Example) An example of the flame detection alarm device with a battery voltage detection function of the present invention is shown in FIG.
R2 is a resistor for voltage division, and FET is a field effect transistor (
(semiconductor element), C is an electrolytic capacitor for preventing a sudden drop in voltage Vs, l is a low voltage detection IC, and vo is the output voltage of the low voltage detection IC.
前記抵抗Ｒ１は電源と電解効果トランジスタＦＥＴのゲ
ートとの間に、前記抵抗Ｒ２は同電解効果トランジスタ
ＦＥＴのゲートと接地との間に設けられて、電源電圧Ｖ
。を分圧して同電解効果トランジスタＦＥＴのゲートに
人力するものである。The resistor R1 is provided between the power supply and the gate of the field effect transistor FET, and the resistor R2 is provided between the gate of the field effect transistor FET and ground, so that the power supply voltage V
. The voltage is divided and applied to the gate of the same field effect transistor FET.
本発明における前記゛１６導体素子２はできれば高イン
ピーダンスのものが望ましく、そのようにすれば消費電
流が少なくなり、電池電圧の消耗が少なく、電池の寿命
が延びる。In the present invention, the 16 conductor element 2 is preferably of high impedance, so that the current consumption is reduced, the battery voltage is less consumed, and the battery life is extended.
第１図、第２図における３は電圧検出信号発振回路であ
り、これは低電圧検出ＴＣＩの出力電圧Ｖｏが人力され
ると作動して、適宜間隔のパルス信号を断続的に発振す
るものである。3 in FIGS. 1 and 2 is a voltage detection signal oscillation circuit, which is activated when the output voltage Vo of the low voltage detection TCI is manually applied, and intermittently oscillates pulse signals at appropriate intervals. be.
第１図、第２図における４はブザー、ベル等の報知器で
あり、前記電圧検出信号発振回路３から発振されるパル
スにより断続音を発生ずるものである。Reference numeral 4 in FIGS. 1 and 2 is an annunciator such as a buzzer or a bell, which generates an intermittent sound using pulses oscillated from the voltage detection signal oscillation circuit 3.
（発明の効果）
本発明の電池電圧検出機能付き炎検出警報器は次のよう
な効果がある。(Effects of the Invention) The flame detection alarm device with battery voltage detection function of the present invention has the following effects.
００分圧用の抵抗Ｒ１、Ｒ２を変えて低電圧検出ＩＣへ
の入力電圧を、同低電圧検出ＩＣの検出可能電圧値に合
わせることができるので、既存の低電圧検出ＩＣを用い
てその検出可能電圧よりも高い終止電圧を確実に検出す
ることができる。By changing the resistors R1 and R2 for the 00 voltage division, the input voltage to the low voltage detection IC can be matched to the detectable voltage value of the same low voltage detection IC, so it can be detected using an existing low voltage detection IC. It is possible to reliably detect an end voltage higher than the current voltage.
従って、電池が使用不可能になる前に交換して、炎検出
警報器の動作を保証することができる。Therefore, the battery can be replaced before it becomes unusable to ensure operation of the flame detection alarm.
■、低電圧検出ＩＣの検出可能電圧の自由度が高くなる
ため、炎検出７報器の各種仕様に対応することができる
。(2) Since the degree of freedom in the detectable voltage of the low voltage detection IC is increased, it is possible to correspond to various specifications of the flame detection device.
■、低電圧検出ＩＣの入力抵抗が分圧用の抵抗Ｒ１，Ｒ
２の影響を受けないので、低電圧検出ＩＣが誤動作する
虞れがない。■The input resistance of the low voltage detection IC is the voltage dividing resistor R1, R
2, there is no risk of the low voltage detection IC malfunctioning.
■、半導体素子２として高インビータンスのものを使用
すれば、分圧用の抵抗Ｒ１、Ｒ２を大きい定数にするこ
とができ、ひいては炎検出警報器の消費電流が少なくな
る。(2) If a high impedance semiconductor element 2 is used, the voltage dividing resistors R1 and R2 can be set to large constants, and as a result, the current consumption of the flame detection alarm device is reduced.
第１図は本発明の電池電圧検出機能付き炎検出警報器の
一実施例を示すブロック回路図、第２図は本件発明者が
本件発明の開発途上で考えた低電圧検出回路を示すブロ
ック回路図である。
■は低電圧検出ＩＣ
２は半導体素子
Ｒ１、Ｒ２は抵抗
Ｃはコンデンサ
Ｖ、は電源電圧
ｖｏは出力電圧
出願人 東京パーツ工業株式会社Fig. 1 is a block circuit diagram showing an embodiment of the flame detection alarm with battery voltage detection function of the present invention, and Fig. 2 is a block circuit diagram showing a low voltage detection circuit conceived by the inventor during the development of the present invention. It is a diagram. ■ is a low voltage detection IC 2 is a semiconductor element R1, R2 is a resistor C is a capacitor V, is a power supply voltage vo is an output voltage Applicant: Tokyo Parts Industry Co., Ltd.
Claims (2)
圧を検出する低電圧検出ＩＣ１が設けられ、炎に含まれ
る紫外線が紫外線センサにより検出されると警報を発す
るようにした炎検出警報器において、前記低電圧検出Ｉ
Ｃ１の入力段に半導体素子２を設け、同半導体素子２の
入力段に同半導体素子２への入力電圧を分圧する抵抗Ｒ
＿１、Ｒ＿２を設けてなることを特徴とする電池電圧検
出機能付き炎検出警報器。(1) Flame detection in which a battery E is used as a power source, a low voltage detection IC 1 is provided to detect the usable voltage of the battery E, and an alarm is issued when ultraviolet rays contained in the flame are detected by an ultraviolet sensor. In the alarm, the low voltage detection I
A semiconductor element 2 is provided at the input stage of C1, and a resistor R for dividing the input voltage to the semiconductor element 2 is provided at the input stage of the semiconductor element 2.
A flame detection alarm with a battery voltage detection function, characterized in that _1 and R_2 are provided.
であり、同電解効果トランジスタＦＥＴのゲートと接地
間及び電源間に前記分圧用の抵抗Ｒ＿１、Ｒ＿２が配さ
れ、同電解効果トランジスタＦＥＴのソースと接地間に
コンデンサＣが配されてなることを特徴とする請求項第
１の電池電圧検出機能付き炎検出警報器。(2) The semiconductor element 2 is a field effect transistor FET
The voltage dividing resistors R_1 and R_2 are arranged between the gate of the field effect transistor FET and the ground and between the power supply, and the capacitor C is arranged between the source of the field effect transistor FET and the ground. Claim 1: A flame detection alarm device with a battery voltage detection function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2149451A JP3066870B2 (en) | 1990-06-07 | 1990-06-07 | Flame detection alarm with battery voltage detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2149451A JP3066870B2 (en) | 1990-06-07 | 1990-06-07 | Flame detection alarm with battery voltage detection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0442400A true JPH0442400A (en) | 1992-02-12 |
| JP3066870B2 JP3066870B2 (en) | 2000-07-17 |
Family
ID=15475409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2149451A Expired - Fee Related JP3066870B2 (en) | 1990-06-07 | 1990-06-07 | Flame detection alarm with battery voltage detection function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3066870B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643468A (en) * | 2017-09-29 | 2018-01-30 | 惠州华阳通用电子有限公司 | A kind of alarm validation checking circuit and method |
-
1990
- 1990-06-07 JP JP2149451A patent/JP3066870B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643468A (en) * | 2017-09-29 | 2018-01-30 | 惠州华阳通用电子有限公司 | A kind of alarm validation checking circuit and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3066870B2 (en) | 2000-07-17 |
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