JP4131231B2 - Leak detector - Google Patents

Leak detector Download PDF

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JP4131231B2
JP4131231B2 JP2003402986A JP2003402986A JP4131231B2 JP 4131231 B2 JP4131231 B2 JP 4131231B2 JP 2003402986 A JP2003402986 A JP 2003402986A JP 2003402986 A JP2003402986 A JP 2003402986A JP 4131231 B2 JP4131231 B2 JP 4131231B2
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sensor
installation surface
sensor unit
leak
electrode
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JP2005164366A (en
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雄大 山下
博 徳永
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Omron Corp
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Priority to CNA2004100980523A priority patent/CN1624445A/en
Priority to CNU2004201174820U priority patent/CN2765171Y/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/40—Investigating fluid-tightness of structures by using electric means, e.g. by observing electric discharges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis

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  • Examining Or Testing Airtightness (AREA)
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Description

本発明は、液体、例えば、水、化学薬液等の漏液、結露等を検出する漏液検出器に関する。   The present invention relates to a leak detector that detects leakage of liquid, for example, water, chemical chemicals, and the like, and condensation.

電極間抵抗検知方式により漏液検出を行う漏液検出器としては、図２０に示すセンサ部４０を有する漏液検出器、漏液のエリア検出を行う漏液検知帯、漏液の点検出を行う漏液検出器等がある。   As a leak detector that detects leak by the interelectrode resistance detection method, a leak detector having the sensor unit 40 shown in FIG. 20, a leak detection zone that detects a leak area, and a point detection of leak There is a leak detector to perform.

図２０に示す漏液検出器におけるセンサ部４０は、板状で硬質な基板４１の裏面に、串形状の導電パターンよりなる一方の電極４２と、串形状の導電バターンよりなる他方の電極４３とを、隙間を存して互い違いに噛み合わせて構成されている。   The sensor unit 40 in the liquid leakage detector shown in FIG. 20 has one electrode 42 made of a skewer-shaped conductive pattern and the other electrode 43 made of a skewer-shaped conductive pattern on the back surface of a plate-like and hard substrate 41. Are alternately meshed with a gap.

そして、機器本体（アンプ部）（図示せず）の信号送出回路から一方の電極４２に送出用漏液検出信号を送り、漏液４４が発生していない場合、送出用漏液検出信号は遮断状態にあり、一方及び他方の電極間は開ループになる。   Then, a leakage detection signal for sending is sent from the signal sending circuit of the device main body (amplifier unit) (not shown) to one of the electrodes 42. When no leakage 44 occurs, the leakage detection signal for sending is cut off. In this state, one and the other electrode are in an open loop.

漏液４４が発生して一方の電極４２と他方の電極４３とが漏液４４で短絡状態になると、検出用漏液検出信号は漏液４４を経由して他方の電極４３に流れ、機器本体（アンプ部）に入力される。この入力された漏液検出用出力信号の電圧は漏液４４の抵抗率により変化するために、この漏液検出用出力信号は、比較部において、設定部で設定された検出レベルと比較され、この比較の結果、漏液４４と判断された場合には表示部が点灯し、また、漏液出力部がオン作動もしくはオフ作動するようになる。   When the leak 44 is generated and the one electrode 42 and the other electrode 43 are short-circuited by the leak 44, the detection leak detection signal flows to the other electrode 43 via the leak 44, and the device main body (Amplifier part) is input. Since the voltage of the input leak detection output signal changes depending on the resistivity of the leak 44, the leak detection output signal is compared with the detection level set by the setting unit in the comparison unit. As a result of this comparison, when it is determined that the liquid is leaking 44, the display unit is turned on, and the liquid leakage output unit is turned on or off.

また、従来の漏液検出器におけるセンサ部としては、検知部に電極を用いこの電極の高さを調節することにより検知レベルを調整できる漏液検知器がある。この漏液検知器における支持体の底面にはほぼＴ字型の溝部が形成してあり、溝部の交点を挟んで金属片である電極が設置してある。この漏液検知器は電極が露出している面を下に向けて設置されるものであり、漏液等による浸水の水位が電極の位置に達すると水等の導電性によって電極間がある程度の抵抗値で導通する。この絶縁／導通の変化が漏液信号として検出回路に出力するものである。   Moreover, as a sensor part in the conventional leak detector, there exists a leak detector which can adjust a detection level by using an electrode for a detection part and adjusting the height of this electrode. A substantially T-shaped groove is formed on the bottom surface of the support in the liquid leakage detector, and an electrode that is a metal piece is placed across the intersection of the grooves. This leak detector is installed with the surface where the electrodes are exposed facing down, and when the level of water immersion due to leak etc. reaches the position of the electrode, there is some gap between the electrodes due to the conductivity of water etc. Conducts with resistance. This change in insulation / conduction is output as a leakage signal to the detection circuit.

また、支持体の底面の４隅には高さ調整用のねじ穴が設けてあり、略中央部には２個の取付用ねじ穴が設けてある。そして、ねじ穴に螺合した高さ調節ねじによって、漏液検知器の設置面と電極との間隔を任意に調節し、また、この漏液検知器はねじ穴を貫通するねじ部材によって自動販売機の底面に取り付けられるものである（特許文献１参照）。
実開平２−７５５４０号公報 Also, height adjustment screw holes are provided at the four corners of the bottom surface of the support, and two mounting screw holes are provided at a substantially central portion. The height adjustment screw screwed into the screw hole can be used to arbitrarily adjust the distance between the installation surface of the leak detector and the electrode, and this leak detector can be automatically sold by a screw member penetrating the screw hole. It is attached to the bottom of the machine (see Patent Document 1).
Japanese Utility Model Publication No. 2-75540

しかしながら、上記した従来の前者の漏液検出器にあっては、センサ部４０を構成する基板４１はシート状であるために設置箇所が限られており、センサ部４０をセンサ設置面に設置する場合に、取付金具や貼付具が必要になって、取付けに工数がかかるという問題点があった。   However, in the above-described conventional leak detector, since the substrate 41 constituting the sensor unit 40 is in a sheet shape, the installation location is limited, and the sensor unit 40 is installed on the sensor installation surface. In this case, there is a problem in that mounting brackets and sticking tools are required, and it takes time for mounting.

また、上記した従来の後者の漏液検出器にあっては、支持体に設けたねじ穴を貫通するねじ部材によって自動販売機の底面に取り付けられるものであり、取付けに工数がかかるという問題点があった。   Further, in the above-described conventional latter leak detector, it is attached to the bottom surface of the vending machine by a screw member penetrating the screw hole provided in the support body, and there is a problem that it takes man-hours for installation. was there.

また、従来の漏液検出器として、漏液に光を当てて漏液検出を行なう光電式のものがあるが、この漏液検出器においても、センサ設置面に設置する場合に、取付金具が必要になって取付けに工数がかかるという問題点があった。   In addition, as a conventional leak detector, there is a photoelectric type that detects light leak by illuminating the leak, but this leak detector also has a mounting bracket when it is installed on the sensor installation surface. There was a problem that it took a lot of man-hours to install.

本発明は、上記の問題点に着目して成されたものであって、その目的とするところは、センサ部をセンサ設置面に設置する場合に、取付金具が不要になって、取付け工数を削減することができるばかりか確実にセンサ設置面に漏れた漏液の検出を行うことができる漏液検出器を提供することである。   The present invention has been made paying attention to the above-mentioned problems, and the purpose of the present invention is to eliminate the need for mounting brackets when installing the sensor unit on the sensor installation surface, and to reduce the installation man-hours. It is an object of the present invention to provide a leak detector that can not only reduce but also reliably detect leaks that have leaked to the sensor installation surface.

上記の目的を達成するために、本発明に係る漏液検出器は、センサ設置面に設置されるセンサ部に設けた一方及び他方の電極間が漏液で短絡されることにより出力される漏液検出用出力信号を基に漏液の検出を行う漏液検出器であって、センサ部には、センサ設置面への設置時に、このセンサ設置面に設けたセンサ取付部材を取付けるための取付用孔が設けてあり、センサ部は筐体を有していて、筐体の底部には周方向に所定の間隙をおいて４個の脚部を突設することによりセンサ設置面との間に隙間が形成されるようになっており、且つ、取付用孔は、センサ設置面側からこのセンサ設置面側に対向する対向面にかけて貫通した状態でセンサ部の中央部に位置するように筐体に設けてあり、更に、センサ取付部材が、スタットボルトと、このスタットボルトに螺合されるナット部材又は取付用孔に付加した雌ねじ部とで構成してあり、このスタットボルトを取付用孔に挿入貫通させてスタットボルトをナット部材又は取付用孔の雌ねじ部に螺合することで、センサ部をセンサ設置面に設置するようにして、一方及び他方の電極は、センサ部のセンサ設置面側に表出していて、センサ設置面に漏れた漏液の検出を行うことを特徴とする。 In order to achieve the above-mentioned object, the leak detector according to the present invention is a leak detector that is output when one and the other electrodes provided in the sensor unit installed on the sensor installation surface are short-circuited by the leak. A leak detector that detects leaks based on the output signal for liquid detection, and the sensor unit is mounted to mount the sensor mounting member provided on the sensor installation surface when installed on the sensor installation surface. Holes are provided, and the sensor part has a housing, and four legs are provided at the bottom of the housing with a predetermined gap in the circumferential direction so as to project from the sensor installation surface. A gap is formed in the housing, and the mounting hole is positioned so as to be located at the center of the sensor unit in a state of penetrating from the sensor installation surface side to the opposing surface facing the sensor installation surface side. In addition, the sensor mounting member is a stat bolt and It consists of a nut member screwed into the stat bolt or a female thread portion added to the mounting hole. By screwing, the sensor unit is installed on the sensor installation surface, and one and the other electrodes are exposed to the sensor installation surface side of the sensor unit, and detection of leakage leaked to the sensor installation surface is detected. It is characterized by performing.

かかる構成により、センサ部をセンサ設置面に設置する場合に、センサ部に設けた取付用孔に、センサ設置面に設けたセンサ取付部材を挿入する等で行なうことができる。このために、取付金具が不要になって、取付け工数を削減することができるばかりか、一方及び他方の電極は、センサ部のセンサ設置面側に表出しているために、確実にセンサ設置面に漏れた漏液の検出を行うことができる。   With this configuration, when the sensor unit is installed on the sensor installation surface, the sensor installation member provided on the sensor installation surface can be inserted into the attachment hole provided on the sensor unit. This eliminates the need for mounting brackets, reducing the number of mounting steps, and ensures that one and the other electrode are exposed to the sensor installation surface side of the sensor section, so It is possible to detect the leaked liquid.

また、かかる構成により、センサ部をセンサ設置面に設置する場合に、センサ部に設けた取付用孔に、センサ設置面に設けたセンサ取付部材を貫通させて行なうことができる。このために、取付金具が不要になって、取付け工数を削減することができる。 Further, with this configuration, when the sensor unit is installed on the sensor installation surface, the sensor installation member provided on the sensor installation surface can be passed through the attachment hole provided on the sensor unit. For this reason, no mounting bracket is required, and the number of mounting steps can be reduced.

また、かかる構成により、センサ部をセンサ設置面に設置する場合に、センサ部に設けた取付用孔にスタットボルトを挿入貫通させて、スタットボルトにナット部材を螺合し、このナット部材を締め付けることで行なうことができる。このために、取付金具が不要になって、取付け工数を削減することができる。 Also, with this configuration, when the sensor unit is installed on the sensor installation surface, the stat bolt is inserted through the mounting hole provided in the sensor unit, the nut member is screwed into the stat bolt, and the nut member is tightened. Can be done. For this reason, no mounting bracket is required, and the number of mounting steps can be reduced.

また、かかる構成により、センサ部をセンサ設置面に設置する場合に、センサ部に設けた取付用孔にスタットボルトを螺合することで行なうことができる。このために、取付金具が不要になって、取付け工数を削減することができる。 Further, with this configuration, when the sensor unit is installed on the sensor installation surface, it can be performed by screwing a stat bolt into a mounting hole provided in the sensor unit. For this reason, no mounting bracket is required, and the number of mounting steps can be reduced.

また、かかる構成により、センサ部をセンサ設置面に設置する場合に、センサ部に設けた取付用孔にスタットボルトを螺合することで行なうことができ、このために、取付金具が不要になって、取付工数を削減することができる。特に、センサ部の上方にスタットボルトが突出することがない。 In addition, with this configuration, when the sensor unit is installed on the sensor installation surface, it can be performed by screwing a stat bolt into the mounting hole provided in the sensor unit, which eliminates the need for a mounting bracket. Thus, the installation man-hour can be reduced. In particular, the stat bolt does not protrude above the sensor unit.

また、本発明に係る漏液検出器は、上記した本発明に係る漏液検出器において、一方及び他方の電極を、電極部の端部に、この電極部に対して起立した接続部を設けて構成し、センサ部は筐体を有していて、この筐体のセンサ設置面側に電極挿入孔が形成してあると共に、筐体内に配線用ケーブルが挿入してあり、一方及び他方の電極の接続部を電極挿入孔に挿入して電極部をセンサ設置面側に表出させると共に、接続部に配線用ケーブルの一方及び他方の電線を接続し、筐体内に充填した樹脂の固化により接続部及び一方及び他方の電線を筐体に固定して電極部を表出状態に保持するようにしたことを特徴とする。   In addition, the leak detector according to the present invention is the leak detector according to the present invention described above, wherein one and the other electrode are provided at the end portion of the electrode portion with a connection portion standing with respect to the electrode portion. The sensor unit has a casing, and an electrode insertion hole is formed on the sensor installation surface side of the casing, and a wiring cable is inserted in the casing. By inserting the electrode connection part into the electrode insertion hole to expose the electrode part to the sensor installation surface side, connecting one and the other wires of the wiring cable to the connection part, and solidifying the resin filled in the housing The connecting portion and the one and other electric wires are fixed to the housing, and the electrode portion is held in an exposed state.

かかる構成により、一方及び他方の電極野電極部は、センサ部のセンサ設置面側に表出しているために、確実にセンサ設置面に漏れた前記漏液の検出を行うことができる。   With this configuration, since the one and the other electrode field electrode portions are exposed to the sensor installation surface side of the sensor unit, it is possible to reliably detect the leakage of the liquid leaking to the sensor installation surface.

また、本発明に係る漏液検出器は、上記した本発明に係る漏液検出器において、電極部が導電性弗素樹脂の被膜で覆われていることを特徴とする。   The leak detector according to the present invention is characterized in that, in the leak detector according to the present invention described above, the electrode portion is covered with a conductive fluorine resin coating.

かかる構成により、電極部に耐薬品性を向上させることができて、化学薬液等の漏液を確実に検出することができるようになる。   With this configuration, the chemical resistance of the electrode portion can be improved, and a leak such as a chemical solution can be reliably detected.

また、本発明に係る漏液検出器は、上記した本発明に係る漏液検出器において、センサ部と、センサ部に信号送出回路から送出用漏液検出信号を送出し且つセンサ部が出力した漏液検出用出力信号を検出レベルと比較して、この比較の結果を出力する機器本体とを備え、複数個のセンサ部を、機器本体に対して並列に配線用ケーブルを介して接続することにより複数箇所での漏液検出を行なうようにしたことを特徴とする。   Further, the leak detector according to the present invention is the leak detector according to the present invention described above, wherein the sensor unit and the sensor unit send out the leak detection signal for sending from the signal sending circuit and the sensor unit outputs the signal. Comparing the output signal for detecting leakage with the detection level and outputting the result of this comparison, and connecting a plurality of sensor units in parallel to the device body via a cable for wiring According to the present invention, leakage detection is performed at a plurality of locations.

かかる構成により、一つの機器本体（例えば、アンプ）に複数個のセンサ部を接続することが可能になって、それぞれのセンサ部に機器本体を接続する必要がなくなり、コストダウンを図ることができる。   With this configuration, it is possible to connect a plurality of sensor units to one device body (for example, an amplifier), and it is not necessary to connect the device body to each sensor unit, thereby reducing costs. .

また、本発明に係る漏液検出器は、上記した本発明に係る漏液検出器において、センサ部と、センサ部に信号送出回路から送出用漏液検出信号を送出し且つセンサ部が出力した漏液検出用出力信号を検出レベルと比較して、この比較の結果を出力する機器本体とを備え、センサ部とシート形状のセンサ部とを、機器本体に対して並列に配線用ケーブルを介して接続することにより漏液検出を行なうことを特徴とする。   Further, the leak detector according to the present invention is the leak detector according to the present invention described above, wherein the sensor unit and the sensor unit send out the leak detection signal for sending from the signal sending circuit and the sensor unit outputs the signal. A device main body that compares the output signal for detecting leakage with the detection level and outputs the result of this comparison, and the sensor portion and the sheet-shaped sensor portion are connected in parallel to the device main body via a wiring cable. The liquid leakage detection is performed by connecting them.

かかる構成により、一つの機器本体（例えば、アンプ）にセンサ部とシート形状のセンサ部を接続することが可能になって、それぞれのセンサ部に機器本体を接続する必要がなくなり、コストダウンを図ることができる。   With this configuration, it is possible to connect the sensor unit and the sheet-shaped sensor unit to one device body (for example, an amplifier), and it is not necessary to connect the device body to each sensor unit, thereby reducing costs. be able to.

本発明に係る漏液検出器によれば、取付金具が不要になって、取付け工数を削減することができるばかりか、確実にセンサ設置面に漏れた漏液の検出を行うことができる。   The liquid leakage detector according to the present invention eliminates the need for a mounting bracket and can reduce the number of mounting steps, and can reliably detect liquid leakage that has leaked to the sensor installation surface.

また、本発明に係る漏液検出器によれば、一つの機器本体（例えば、アンプ）に複数個のセンサ部を接続することが可能になって、それぞれのセンサ部に機器本体を接続する必要がなくなり、コストダウンを図ることができる。   Moreover, according to the leak detector according to the present invention, it is possible to connect a plurality of sensor units to one device body (for example, an amplifier), and it is necessary to connect the device body to each sensor unit. The cost can be reduced.

以下、本発明の実施の形態を図面に基づいて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

（実施の形態１）
本発明の実施の形態１を図１乃至図９に示す。図１は本発明に係る漏液検出器の実施の形態１の構成説明図、図２は同漏液検出器におけるセンサ部の正面図、図３は同センサ部の裏面図、図４は同センサ部の横断面図、図５は図３のＸ−Ｘ線に沿う一部省略した断面図、図６は図４のＹ−Ｙ線に沿う一部省略した断面図である。 (Embodiment 1)
A first embodiment of the present invention is shown in FIGS. FIG. 1 is a diagram illustrating the configuration of a leak detector according to Embodiment 1 of the present invention, FIG. 2 is a front view of a sensor unit in the leak detector, FIG. 3 is a rear view of the sensor unit, and FIG. FIG. 5 is a partially omitted sectional view taken along line XX of FIG. 3, and FIG. 6 is a partially omitted sectional view taken along line YY of FIG.

本発明に係る漏液検出器Ｆは、漏液検出を行うセンサ部Ａと、機器本体（アンプ部）Ｂとより構成してある。   The liquid leakage detector F according to the present invention includes a sensor unit A that performs liquid leakage detection and a device main body (amplifier unit) B.

この機器本体（アンプ部）Ｂは信号送出回路とレベル設定部と比較部と漏液出力部と表示部（いずれも図示せず）とを備えており、センサ部Ａに信号送出回路から配線用ケーブルＣを介して送出用漏液検出信号を送出し、比較部でセンサ部Ａが出力した漏液検出用出力信号（漏液の抵抗率により変化する電圧）を、レベル設定部で設定された検出レベルと比較して、この比較の結果、漏液と判断された場合に表示部（図示せず）を点灯し、また、漏液出力部（図示せず）をオン作動もしくはオフ作動するようにしてある。   The device main body (amplifier unit) B includes a signal transmission circuit, a level setting unit, a comparison unit, a leakage output unit, and a display unit (none of which are shown). The leak detection signal for sending is sent via the cable C, and the output signal for leak detection output by the sensor unit A in the comparison unit (the voltage that changes depending on the leak resistance) is set in the level setting unit. As a result of this comparison, when it is determined that there is a leak, the display unit (not shown) is turned on, and the leak output unit (not shown) is turned on or off. It is.

そして、漏液検出を行うセンサ部Ａは、図２、図３及び図５に示すように、ケース１とカバー２とベース３とよりなる筐体Ｋと、二つの電極４Ａ、４Ｂとを備えている。   As shown in FIGS. 2, 3, and 5, the sensor unit A that performs leakage detection includes a housing K including a case 1, a cover 2, and a base 3, and two electrodes 4 </ b> A and 4 </ b> B. ing.

ケース１は、図６に示すように、円形状の底部１ａの周部に周壁部１ｂを形成して構成されたケース本体１Ａを備えており、このケース本体１Ａの底部１ａには、その中央部に円形状の孔部５が形成してある。また、ケース本体１Ａの底部１ａには複数の位置決め用ピン７が設けてある。また、周壁部１ｂの下部には、周方向に所定の間隔を置いて４個の脚部８が突設してあり、周壁部１ｂの上部の外周には係合凹部９が形成してある。   As shown in FIG. 6, the case 1 includes a case main body 1A configured by forming a peripheral wall portion 1b around a circular bottom portion 1a. The bottom portion 1a of the case main body 1A includes a central portion thereof. A circular hole 5 is formed in the part. A plurality of positioning pins 7 are provided on the bottom 1a of the case body 1A. Further, four leg portions 8 project from the lower portion of the peripheral wall portion 1b at a predetermined interval in the circumferential direction, and an engagement recess 9 is formed on the outer periphery of the upper portion of the peripheral wall portion 1b. .

カバー２は、図６に示すように、円形状のカバー本体２Ａの周部に周壁部２Ｂを形成して構成してあり、カバー本体２Ａには、その中央部に円形状の孔部１０が、また、この孔部１０より離れた部位にケーブル用挿入孔部１１がそれぞれ設けてあり、また、周壁部２Ｂの下部の内周部には周方向に係合突部１２が突設してある。   As shown in FIG. 6, the cover 2 is configured by forming a peripheral wall portion 2B around a circular cover main body 2A, and the cover main body 2A has a circular hole 10 at the center thereof. In addition, cable insertion hole portions 11 are provided at positions apart from the hole portions 10, respectively, and an engagement protrusion 12 projects in the circumferential direction on the inner peripheral portion of the lower portion of the peripheral wall portion 2B. is there.

また、図６に示すように、ベース３は円形状のベース本体３Ａを備えており、このベース本体３Ａの中央部には中空円筒形状のガイド部１３が形成してあって、このガイド部１３の内部は貫通孔部１４になされている。また、ベース本体３Ａには、図３に示すように、ガイド部１３を挟んだ両側方に電極挿入孔（１５Ａ、１５Ｂ）、（１５Ｃ、１５Ｄ）がそれぞれ形成してある。ベース本体３Ａの下面部には複数の位置決め用凹部１６が形成してある。   As shown in FIG. 6, the base 3 includes a circular base body 3A, and a hollow cylindrical guide portion 13 is formed at the center of the base body 3A. Is formed in the through-hole portion 14. In addition, as shown in FIG. 3, the base body 3A has electrode insertion holes (15A, 15B) and (15C, 15D) formed on both sides sandwiching the guide portion 13, respectively. A plurality of positioning recesses 16 are formed on the lower surface of the base body 3A.

また、図３及び図４に示す電極４Ａ、４Ｂは、図５に示すように、電極部１７と、この電極部１７の両端部に、この電極部１７に対して直角に起立した接続部１８、１９とを有する側面視で倒立コ字形状をなしている。

Further, electrode 4A, 4B electrostatic shown in FIGS. 3 and 4, as shown in FIG. 5, the electrode portion 17, the both end portions of the electrode portions 17, connecting portions standing upright at right angles to the electrode portions 17 18 and 19 have an inverted U-shape when viewed from the side.

そして、ケース１内には、位置決め用ピン７を位置決め用凹部１６に挿入してベース３が収容してあり、また、ケース１にはカバー２が被せてあって、センサ部Ａの中央部には、ケース１の孔部５、ベースのガイド部１３内部の貫通孔部１４及びカバー２の孔部１０で構成される取付用孔Ｇが形成してある。   In the case 1, the positioning pin 7 is inserted into the positioning recess 16 to accommodate the base 3, and the case 1 is covered with the cover 2, so that the center portion of the sensor portion A is covered. Is formed with a mounting hole G composed of the hole portion 5 of the case 1, the through-hole portion 14 in the guide portion 13 of the base, and the hole portion 10 of the cover 2.

そして、ケース１に設けた電極挿入孔（１５Ａ、１５Ｂ）、（１５Ｃ、１５Ｄ）には電極４Ａ、４Ｂの接続部１８、１９が挿入してあって、これらの接続部１８、１９はケース１内に突入している。また、ケース１内には、ケーブル用挿入孔部１１から配線用ケーブルＣが挿入してあり、この配線用ケーブルＣの一方の電線２１Ａは一方の電極４Ａの接続部１８に接続してあり、また、配線用ケーブルＣの他方の電線２１Ｂは他方の電極４Ｂの接続部１８に接続してある。また、一方の電極４Ａの接続部１９は一方のツェナーダイオード２２Ａを介して回路基板２３の接続パターン（図示せず）に接続してあり、また、他方の電極４Ｂの接続部１９は他方のツェナーダイオード２２Ｂを介して回路基板２３の接続パターン（図示せず）に接続してある。   The connection portions 18 and 19 of the electrodes 4A and 4B are inserted into the electrode insertion holes (15A and 15B) and (15C and 15D) provided in the case 1, and these connection portions 18 and 19 are connected to the case 1. Has rushed into. In addition, in the case 1, a wiring cable C is inserted from the cable insertion hole 11, and one electric wire 21A of the wiring cable C is connected to the connecting portion 18 of one electrode 4A, The other electric wire 21B of the wiring cable C is connected to the connecting portion 18 of the other electrode 4B. The connection portion 19 of one electrode 4A is connected to a connection pattern (not shown) of the circuit board 23 via one Zener diode 22A, and the connection portion 19 of the other electrode 4B is connected to the other Zener. It is connected to a connection pattern (not shown) of the circuit board 23 via a diode 22B.

そして、ケース１内には樹脂２４が充填してあって、この樹脂２４の固化によって、一方及び他方の電極４Ａ、４Ｂの接続部１８、１９、一方及び他方のツェナーダイオード２２Ａ、２２Ｂ、回路基板２３、一方及び他方の電線２１Ａ、２１Ｂが固定してあり、一方及び他方の電極４Ａ、４Ｂの電極部１７が筐体Ｋのセンサ設置面側に表出している。   The case 1 is filled with a resin 24. By solidifying the resin 24, the connection portions 18 and 19 of the one and the other electrodes 4A and 4B, the one and the other Zener diodes 22A and 22B, the circuit board 23, the one and the other electric wires 21A and 21B are fixed, and the electrode portions 17 of the one and the other electrodes 4A and 4B are exposed to the sensor installation surface side of the housing K.

上記した配線用ケーブルＣは機器本体（アンプ部）Ｂの信号入、出力側に接続してある。   The wiring cable C described above is connected to the signal input / output side of the device main body (amplifier unit) B.

また、機械設備等のセンサ設置面３０には、図７に示すように、漏液センサ取付用のスタットボルト３１が植設してあり、このスタットボルト３１にはナット部材３２が螺合されるものであり、これらでセンサ取付部材が構成してある。   Further, as shown in FIG. 7, a stat bolt 31 for mounting a leak sensor is planted on a sensor installation surface 30 of a mechanical facility or the like, and a nut member 32 is screwed into the stat bolt 31. These are the sensor mounting members.

次に、上記のように構成された漏液センサＦにおけるセンサ部Ａのセンサ設置面３０への設置を説明する。   Next, installation of the sensor unit A on the sensor installation surface 30 in the liquid leakage sensor F configured as described above will be described.

センサ部Ａの中央部には取付用孔Ｇが形成してあるために、図７に示すように、この取付用孔Ｇにスタットボルト３１を挿入して、センサ部Ａをセンサ設置面３０に載置して、スタットボルト３１にナット部材３２を螺合し、このナット部材３２を締め付けることで、図８に示すように、センサ部Ａをセンサ設置面３０に設置する。この場合、ケース１の４個の脚部８がセンサ設置面３０に接触しており、各脚部８間に隙間３３が形成される。   Since a mounting hole G is formed in the center of the sensor part A, a stat bolt 31 is inserted into the mounting hole G as shown in FIG. The sensor unit A is installed on the sensor installation surface 30 as shown in FIG. 8 by mounting and screwing the nut member 32 onto the stat bolt 31 and tightening the nut member 32. In this case, the four legs 8 of the case 1 are in contact with the sensor installation surface 30, and a gap 33 is formed between the legs 8.

次に、上記のように構成された漏液検出器Ｆの作動を説明する。   Next, the operation of the leak detector F configured as described above will be described.

機器本体（アンプ部）Ｂの信号送出回路から配線用ケーブルＣの一方の電線２１Ａである信号送出用の電線を介して一方の電極４Ａに送出用漏液検出信号を送る。漏液Ｅが発生していない場合、送出用漏液検出信号は遮断状態にあり、一方及び他方の電極４Ａ、４Ｂ間は開ループになる。   A leakage detection signal for sending is sent from the signal sending circuit of the device main body (amplifier unit) B to one electrode 4A via the signal sending wire which is one wire 21A of the wiring cable C. When the leak E is not generated, the sending leak detection signal is in a cut-off state, and an open loop is formed between the one and the other electrodes 4A and 4B.

図９に示すように漏液Ｅが発生して、この漏液Ｅが脚部８間の隙間３３から漏液検出器Ｆのセンサ部Ａの下方に侵入して、一方の電極４Ａの電極部１７と他方の電極４Ｂの電極部１７とが漏液Ｅで短絡状態になると、送出用漏液検出信号は漏液Ｅを経由して他方の電極４Ａに流れ他方の電線（信号送入用の電線）２１Ｂを介して機器本体（アンプ部）Ｂに入力される。   As shown in FIG. 9, a leak E is generated, and the leak E enters the lower part of the sensor part A of the leak detector F through the gap 33 between the leg parts 8, and the electrode part of one electrode 4A. 17 and the electrode portion 17 of the other electrode 4B are short-circuited by the leakage E, the leakage detection signal for sending flows to the other electrode 4A via the leakage E and the other electric wire (for signal feeding). It is input to the device main body (amplifier unit) B via the electric wire 21B.

この入力された入力信号である漏液検出用出力信号の電圧は漏液Ｅの抵抗率により変化するために、漏液検出用出力信号は、比較部において設定部で設定された検出レベルと比較され、この比較の結果、漏液Ｅと判断された場合には表示部が点灯し、また、漏液出力部がオン作動もしくはオフ作動する。   Since the voltage of the leak detection output signal that is the input signal changes depending on the resistivity of the leak E, the leak detection output signal is compared with the detection level set by the setting unit in the comparison unit. As a result of the comparison, when it is determined that the liquid leak is E, the display unit is turned on, and the liquid leakage output unit is turned on or off.

また、一方及び他方の電極４Ａ、４Ｂの電極部１７を導電性弗素樹脂でコーティングする（被膜で覆う）ことで耐薬品性に優れたものにすることも可能である。   It is also possible to make the electrode portions 17 of the one and the other electrodes 4A and 4B excellent in chemical resistance by coating with conductive fluororesin (covering with a film).

上記したように、本発明の実施の形態１によれば、センサ部Ａをセンサ設置面３０に設置する場合に、センサ部Ａに設けた取付用孔Ｇにスタットボルト３１を挿入貫通させて、スタットボルト３１にナット部材３２を螺合し、このナット部材３２を締め付けることで行なうことができる。このために、取付金具が不要になって、取付け工数を削減することができる。   As described above, according to the first embodiment of the present invention, when the sensor unit A is installed on the sensor installation surface 30, the stat bolt 31 is inserted through the mounting hole G provided in the sensor unit A, The nut member 32 can be screwed onto the stat bolt 31 and the nut member 32 can be tightened. For this reason, no mounting bracket is required, and the number of mounting steps can be reduced.

（実施の形態２）
本発明の実施の形態２を図１０至図１３示す。 (Embodiment 2)
A second embodiment of the present invention is shown in FIGS.

本発明の実施の形態２では、センサ部Ａにおいて、ベース３に設けた中空円筒形状のガイド部１３の内面に雌ねじ部２６を形成することで、取付用孔Ｇに雌ねじ部２６を付加したものであり、他の構成は上記した本発明の実施の形態１の場合と同じにしてある。したがって、センサ部Ａのセンサ設置面３０への設置に、ナット部材３２を使用しないですむようになる。   In Embodiment 2 of the present invention, in the sensor part A, the female screw part 26 is added to the mounting hole G by forming the female screw part 26 on the inner surface of the hollow cylindrical guide part 13 provided in the base 3. Other configurations are the same as those of the first embodiment of the present invention described above. Therefore, the nut member 32 is not required to be installed on the sensor installation surface 30 of the sensor unit A.

すなわち、図１１に示すように、センサ部Ａの取付用孔Ｇの雌ねじ部２６をスタットボルト３１に螺合し、センサ部Ａを回転させることで、図１２に示すように、センサ部Ａをセンサ設置面３０に設置する。なお、漏液検出器Ｆの作動は、上記した本発明の実施の形態１の場合と同じにしてある。   That is, as shown in FIG. 11, the female thread part 26 of the mounting hole G of the sensor part A is screwed into the stat bolt 31, and the sensor part A is rotated, thereby rotating the sensor part A as shown in FIG. It is installed on the sensor installation surface 30. The operation of the leak detector F is the same as that in the first embodiment of the present invention described above.

上記したように、本発明の実施の形態２によれば、センサ部Ａをセンサ設置面３０に設置する場合に、センサ部Ａに設けた取付用孔Ｇにスタットボルト３１を螺合することで行なうことができる。このために、取付金具が不要になって、取付け工数を削減することができる。   As described above, according to the second embodiment of the present invention, when the sensor unit A is installed on the sensor installation surface 30, the stat bolt 31 is screwed into the mounting hole G provided in the sensor unit A. Can be done. For this reason, no mounting bracket is required, and the number of mounting steps can be reduced.

（実施の形態３）
本発明の実施の形態３を図１４乃至図１７示す。 (Embodiment 3)
A third embodiment of the present invention is shown in FIGS.

本発明の実施の形態３では、センサ部Ａにおいて、ベース３に設けた中空円筒形状のガイド部１３の内面に雌ねじ部２６を形成すると共に、ケース２に孔部１０を無くして、取付用孔Ｇに雌ねじ部２６を付加すると共に、取付用孔Ｇを有底の孔にしたものであり、他の構成は上記した本発明の実施の形態１の場合と同じにしてある。したがって、センサ部Ａのセンサ設置面３０への設置に、ナット部材３２を使用しないですむようになる。   In Embodiment 3 of the present invention, in the sensor part A, the female screw part 26 is formed on the inner surface of the hollow cylindrical guide part 13 provided in the base 3, and the hole 10 is eliminated from the case 2 so that the mounting hole is provided. An internal thread portion 26 is added to G, and the mounting hole G is a bottomed hole. Other configurations are the same as those in the first embodiment of the present invention described above. Therefore, the nut member 32 is not required to be installed on the sensor installation surface 30 of the sensor unit A.

すなわち、図１５に示すように、センサ部Ａの取付用孔Ｇの雌ねじ部２６をスタットボルト３１に螺合し、センサ部Ａを回転させることで、図１６に示すように、センサ部Ａをセンサ設置面３０に設置する。この場合、スタットボルト３１は短いものが使用される。なお、漏液検出器Ｆの作動は、上記した本発明の実施の形態１の場合と同じにしてある。   That is, as shown in FIG. 15, the female thread part 26 of the mounting hole G of the sensor part A is screwed into the stat bolt 31, and the sensor part A is rotated, so that the sensor part A is rotated as shown in FIG. It is installed on the sensor installation surface 30. In this case, a short stat bolt 31 is used. The operation of the leak detector F is the same as that in the first embodiment of the present invention described above.

上記したように、本発明の実施の形態３によれば、センサ部Ａをセンサ設置面３０に設置する場合に、センサ部Ａに設けた取付用孔Ｇにスタットボルト３１を螺合することで行なうことができ、このために、取付金具が不要になって、取付工数を削減することができる。また、センサ部Ａの上方にスタットボルト３１が突出することがない。   As described above, according to the third embodiment of the present invention, when the sensor unit A is installed on the sensor installation surface 30, the stat bolt 31 is screwed into the mounting hole G provided in the sensor unit A. For this reason, no mounting bracket is required, and the number of mounting steps can be reduced. Further, the stat bolt 31 does not protrude above the sensor portion A.

また、図１８に示すように、上記した本発明の実施の形態１（もしくは本発明の実施の形態２、３）で開示されたセンサ部Ａを複数個用いて、これらのセンサ部Ａを、機器本体（すなわち、このセンサ部Ａに信号送出回路から送出用漏液検出信号を送出し且つセンサ部が出力した漏液検出用出力信号を検出レベルと比較して、この比較の結果を出力すると機器本体）Ｂに対して並列に配線用ケーブルＣを介して接続することにより、複数箇所での漏液検出を行なう。   Further, as shown in FIG. 18, by using a plurality of sensor units A disclosed in the first embodiment of the present invention (or the second and third embodiments of the present invention), the sensor units A are When a leakage detection signal for sending is sent from the signal sending circuit to the device main body (that is, the leakage detection output signal output by the sensor is compared with the detection level, and the result of this comparison is output. By connecting in parallel to the device body) B via the wiring cable C, leakage detection is performed at a plurality of locations.

この場合、一つの機器本体（例えば、アンプ）Ｂに複数個のセンサ部Ａを接続することが可能になって、それぞれのセンサ部Ａに機器本体Ｂを接続する必要がなくなり、コストダウンを図ることができる。   In this case, a plurality of sensor units A can be connected to one device body (for example, an amplifier) B, and it is not necessary to connect the device body B to each sensor unit A, thereby reducing costs. be able to.

また、図１９に示すように、上記した本発明の実施の形態１（もしくは本発明の実施の形態２、３）で開示されたセンサ部Ａとシート形状のセンサ部Ａ−１とを、一台の機器本体（例えば、アンプ）Ｂに対して並列に配線用ケーブルＣを介して接続することにより漏液検出を行なう。   Further, as shown in FIG. 19, the sensor unit A and the sheet-shaped sensor unit A-1 disclosed in the first embodiment of the present invention (or the second and third embodiments of the present invention) are combined. Liquid leakage detection is performed by connecting to a device body (for example, an amplifier) B in parallel via a wiring cable C.

このセンサ部Ａ−１は、基板３４の裏面に、串形状の導電パターンよりなる一方の電極３５と、串形状の導電バターンよりなる他方の電極３６とを、隙間を存して互い違いに噛み合わせて構成されている。   In the sensor part A-1, the back surface of the substrate 34 is alternately meshed with one electrode 35 made of a skewer-shaped conductive pattern and the other electrode 36 made of a skewer-shaped conductive pattern with a gap. Configured.

本発明に係る漏液検出器は、取付金具が不要になって、取付け工数を削減することができるばかりか、確実にセンサ設置面に漏れた漏液の検出を行うことができるという効果を有することにより、液体、例えば、水、化学薬液等の漏液、結露等を検出する漏液検出器と、この漏液検出器を用いた漏液検出システム等に有用である。   The leak detector according to the present invention eliminates the need for mounting brackets and can reduce the number of mounting steps, and also has the effect of reliably detecting leaks on the sensor installation surface. Therefore, the present invention is useful for a leak detector that detects leakage of liquid, for example, water, chemical chemical liquid, and condensation, and a leak detection system that uses this leak detector.

本発明に係る漏液検出器の実施の形態１の構成説明図である。1 is a configuration explanatory diagram of Embodiment 1 of a leak detector according to the present invention. FIG. 同漏液検出器におけるセンサ部の正面図である。It is a front view of the sensor part in the leak detector. 同センサ部の裏面図である。It is a back view of the sensor part. 同センサ部の横断面図である。It is a cross-sectional view of the sensor part. 図３のＸ−Ｘ線に沿う一部省略した断面図である。FIG. 4 is a partially omitted cross-sectional view taken along line XX in FIG. 3. 図４のＹ−Ｙ線に沿う一部省略した断面図である。It is sectional drawing which abbreviate | omitted partially along the YY line of FIG. 本発明に係る漏液検出器の実施の形態１においてセンサ部をセンサ設置面に設置する前の状態の説明図である。It is explanatory drawing of the state before installing a sensor part in a sensor installation surface in Embodiment 1 of the leak detector which concerns on this invention. 同センサ部をセンサ設置面に設置した状態を正面から見た説明図である。It is explanatory drawing which looked at the state which installed the sensor part in the sensor installation surface from the front. 同センサ部をセンサ設置面に設置した状態を平面から見た説明図である。It is explanatory drawing which looked at the state which installed the sensor part in the sensor installation surface from the plane. 本発明に係る漏液検出器の実施の形態２におけるセンサ部の縦断面図である。It is a longitudinal cross-sectional view of the sensor part in Embodiment 2 of the leak detector based on this invention. 同センサ部をセンサ設置面に設置する前の状態の説明図である。It is explanatory drawing of the state before installing the sensor part in a sensor installation surface. 同センサ部をセンサ設置面に設置した状態を正面から見た説明図である。It is explanatory drawing which looked at the state which installed the sensor part in the sensor installation surface from the front. 同センサ部をセンサ設置面に設置した状態を平面から見た説明図である。It is explanatory drawing which looked at the state which installed the sensor part in the sensor installation surface from the plane. 本発明に係る漏液検出器の実施の形態３におけるセンサ部の縦断面図である。It is a longitudinal cross-sectional view of the sensor part in Embodiment 3 of the leak detector based on this invention. 同センサ部をセンサ設置面に設置する前の状態の説明図である。It is explanatory drawing of the state before installing the sensor part in a sensor installation surface. 同センサ部をセンサ設置面に設置した状態を正面から見た説明図である。It is explanatory drawing which looked at the state which installed the sensor part in the sensor installation surface from the front. 同センサ部をセンサ設置面に設置した状態を平面から見た説明図である。It is explanatory drawing which looked at the state which installed the sensor part in the sensor installation surface from the plane. 本発明に係る漏液検出器において複数個のセンサ部を機器本体に対して並列接続した場合の説明図である。It is explanatory drawing at the time of connecting a some sensor part with respect to an apparatus main body in parallel in the leak detector which concerns on this invention. 本発明に係る漏液検出器においてセンサ部とシート状のセンサ部とを機器本体に対して並列接続した場合の説明図である。It is explanatory drawing at the time of connecting a sensor part and a sheet-like sensor part with an apparatus main body in parallel in the leak detector which concerns on this invention. 従来の漏液検出器におけるセンサ部の斜視図である。It is a perspective view of the sensor part in the conventional leak detector.

符号の説明Explanation of symbols

Ａ センサ部
Ｂ 機器本体（アンプ部）
Ｃ 配線用ケーブル
Ｅ 漏液
Ｆ 漏液検出器
Ｇ 取付用孔
Ｋ 筐体
１ ケース
２ カバー
３ ベース
４Ａ 電極
４Ｂ 電極
５ 孔部
８ 脚部
１０ 孔部
１１ ケーブル用挿入孔部
１３ ガイド部
１４ 貫通孔部
１５Ａ、１５Ｂ、１５Ｃ、１５Ｄ 電極挿入孔
１７ 電極部
１８ 接続部
１９ 接続部
３０ センサ設置面
３１ スタットボルト（センサ取付部材）
３２ ナット部材（センサ取付部材）
３３ 隙間 A Sensor part B Device body (amplifier part)
C Wiring cable E Leakage F Leakage detector G Mounting hole K Housing 1 Case 2 Cover 3 Base 4A Electrode 4B Electrode 5 Hole 8 Leg 10 Hole 11 Cable insertion hole 13 Guide 14 14 Through hole Part 15A, 15B, 15C, 15D Electrode insertion hole 17 Electrode part 18 Connection part 19 Connection part 30 Sensor installation surface 31 Stat bolt (sensor attachment member)
32 Nut member (sensor mounting member)
33 Clearance

Claims (5)

センサ設置面に設置されるセンサ部に設けた一方及び他方の電極間が漏液で短絡されることにより出力される漏液検出用出力信号を基に前記漏液の検出を行う漏液検出器であって、
前記センサ部には、前記センサ設置面への設置時に、このセンサ設置面に設けたセンサ取付部材を取付けるための取付用孔が設けてあり、前記センサ部は筐体を有していて、前記筐体の底部には周方向に所定の間隙をおいて４個の脚部を突設することにより前記センサ設置面との間に隙間が形成されるようになっており、且つ、前記取付用孔は、前記センサ設置面側からこのセンサ設置面側に対向する対向面にかけて貫通した状態で前記センサ部の中央部に位置するように前記筐体に設けてあり、更に、前記センサ取付部材が、スタットボルトと、このスタットボルトに螺合されるナット部材又は前記取付用孔に付加した雌ねじ部とで構成してあり、このスタットボルトを前記取付用孔に挿入貫通させて前記スタットボルトを前記ナット部材又は前記取付用孔の雌ねじ部に螺合することで、前記センサ部を前記センサ設置面に設置するようにして、前記一方及び他方の電極は、前記センサ部のセンサ設置面側に表出していて、前記センサ設置面に漏れた前記漏液の検出を行うことを特徴とする漏液検出器。 A leak detector that detects the leak based on a leak detection output signal that is output when one and the other electrodes are short-circuited between the electrodes provided on the sensor installation surface. Because
The sensor unit is provided with a mounting hole for mounting a sensor mounting member provided on the sensor installation surface when installed on the sensor installation surface, and the sensor unit has a housing, A gap is formed between the bottom surface of the housing and the sensor installation surface by projecting four leg portions with a predetermined gap in the circumferential direction. The hole is provided in the casing so as to be located in the center of the sensor unit in a state of penetrating from the sensor installation surface side to the opposing surface facing the sensor installation surface side, and the sensor mounting member A stat bolt and a nut member screwed into the stat bolt or a female screw portion added to the mounting hole, and the stat bolt is inserted through the mounting hole to pass the stat bolt Nut member Than screwing into the internal thread portion of the attachment hole, so as to install the sensor unit to the sensor mounting surface, the one and the other electrodes are not exposed to the sensor mounting surface side of the sensor unit The leak detector detects the leaked leak on the sensor installation surface. 前記一方及び他方の電極を、電極部の端部に、この電極部に対して起立した接続部を設けて構成し、
前記センサ部は筐体を有していて、この筐体のセンサ設置面側に電極挿入孔が形成してあると共に、前記筐体内に配線用ケーブルが挿入してあり、前記一方及び他方の電極の前記接続部を前記電極挿入孔に挿入して前記電極部をセンサ設置面側に表出させると共に、前記接続部に前記配線用ケーブルの一方及び他方の電線を接続し、前記筐体内に充填した樹脂の固化により前記接続部及び前記一方及び他方の電線を前記筐体に固定して前記電極部を表出状態に保持するようにしたことを特徴とする請求項１に記載の漏液検出器。 The one and the other electrodes are configured by providing a connection portion standing on the electrode portion at an end portion of the electrode portion,
The sensor section has a housing, an electrode insertion hole is formed on the sensor installation surface side of the housing, and a wiring cable is inserted into the housing, and the one and the other electrodes The connecting portion is inserted into the electrode insertion hole so that the electrode portion is exposed to the sensor installation surface side, and one and the other wires of the wiring cable are connected to the connecting portion, and the casing is filled. 2. The leak detection according to claim 1 , wherein the connecting portion and the one and the other electric wires are fixed to the casing by solidifying the resin and the electrode portion is held in an exposed state. vessel. 前記電極部が導電性弗素樹脂の被膜で覆われていることを特徴とする請求項１又は２に記載の漏液検出器。 3. The leak detector according to claim 1, wherein the electrode portion is covered with a conductive fluorine resin film. 前記センサ部と、前記センサ部に信号送出回路から送出用漏液検出信号を送出し且つ前記センサ部が出力した漏液検出用出力信号を検出レベルと比較して、この比較の結果を出力する機器本体とを備え、複数個の前記センサ部を、前記機器本体に対して並列に配線用ケーブルを介して接続することにより複数箇所での漏液検出を行なうようにしたことを特徴とする請求項１乃至請求項３のいずれかの一に記載の漏液検出器。 The sensor unit and a sensor leakage detection signal sent from the signal transmission circuit to the sensor unit, and the leakage detection output signal output by the sensor unit is compared with a detection level, and the result of this comparison is output. An apparatus main body is provided, and a plurality of the sensor units are connected to the apparatus main body in parallel via a wiring cable to detect leakage at a plurality of locations. The liquid leakage detector according to any one of claims 1 to 3 . 前記センサ部と、前記センサ部に信号送出回路から送出用漏液検出信号を送出し且つ前記センサ部が出力した漏液検出用出力信号を検出レベルと比較して、この比較の結果を出力する機器本体とを備え、前記センサ部とシート形状のセンサ部とを、前記機器本体に対して並列に配線用ケーブルを介して接続することにより漏液検出を行なうことを特徴とする請求項１乃至請求項４のいずれかの一に記載の漏液検出器。 The sensor unit and a sensor leakage detection signal sent from the signal transmission circuit to the sensor unit, and the leakage detection output signal output by the sensor unit is compared with a detection level, and the result of this comparison is output. An apparatus main body is provided, and leakage detection is performed by connecting the sensor section and the sheet-shaped sensor section in parallel to the apparatus main body via a cable for wiring. The liquid leakage detector according to claim 4 .
JP2003402986A 2003-12-02 2003-12-02 Leak detector Expired - Lifetime JP4131231B2 (en)

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JP2003402986A JP4131231B2 (en) 2003-12-02 2003-12-02 Leak detector
KR1020040098433A KR100659462B1 (en) 2003-12-02 2004-11-29 Liquid Leakage Detector
TW093136986A TWI276792B (en) 2003-12-02 2004-12-01 Liquid leakage detector
CNA2004100980523A CN1624445A (en) 2003-12-02 2004-12-02 Liquid leakage detector
CNU2004201174820U CN2765171Y (en) 2003-12-02 2004-12-02 Leakage detector

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KR101578060B1 (en) * 2014-08-29 2015-12-16 플루오르테크주식회사 Flexible sheet typed leak sensor
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KR101908585B1 (en) 2017-05-10 2018-12-19 주식회사 한성시스코 Iot hot water distributor with sensing means for water leakage

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KR20050053320A (en) 2005-06-08

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