KR20180019894A - Acid detection sensor with heating structure - Google Patents

Acid detection sensor with heating structure Download PDF

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Publication number
KR20180019894A
KR20180019894A KR1020160104176A KR20160104176A KR20180019894A KR 20180019894 A KR20180019894 A KR 20180019894A KR 1020160104176 A KR1020160104176 A KR 1020160104176A KR 20160104176 A KR20160104176 A KR 20160104176A KR 20180019894 A KR20180019894 A KR 20180019894A
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base layer
line
electrodes
longitudinal direction
sensing line
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KR1020160104176A
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Korean (ko)
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박노진
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주식회사 아바오
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Publication of KR20180019894A publication Critical patent/KR20180019894A/en

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    • 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
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • G01N27/122—Circuits particularly adapted therefor, e.g. linearising circuits
    • G01N27/123—Circuits particularly adapted therefor, e.g. linearising circuits for controlling the temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
    • G01N25/22—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
    • G01N25/28—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly
    • G01N25/30—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly using electric temperature-responsive elements
    • G01N25/32—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly using electric temperature-responsive elements using thermoelectric elements

Abstract

The present invention relates to an acid detection sensor and, more specifically, relates to the acid detection sensor which is elongated in a tape shape, is made of a film material, and detects an acidic solution. A heating function is added to the acid detection sensor to prevent the leaked acidic solution from being frozen on the upper surface of the sensor. According to the present invention, the acid detection sensor comprises: a base layer made of the film material; a detection line which is elongated in the longitudinal direction on the upper surface of the base layer, and has a resistance value changed by the acidic solution; a power line which is parallel to the detection line while being spaced from the detection line on the upper surface of the base layer; a cover layer made of the film material, laminated on the upper surface of the base layer, and has an exposure hole to expose the detection line in the longitudinal direction; a pair of electrodes which are formed on the lower surface of the base layer, and are elongated in the longitudinal direction from the outside while the detection line and the power line are interposed therebetween; a heating line which is connected at every interval in a ladder form between the pair of electrodes; and a lower insulation layer which is laminated on the lower surface of the base layer, and insulates the electrodes and heating line.

Description

발열구조를 갖는 산 감지센서{Acid detection sensor with heating structure}[0001] The present invention relates to an acid detection sensor having a heating structure,

본 발명은 산 감지센서에 관한 것으로, 특히 필름 재질에 의해 테이프 형태로 길게 형성된 산 용액을 감지하는 센서에 발열기능을 부가하여 누설된 산 용액이 센서의 상부면에서 결빙되는 것을 방지하도록 한 발열구조를 갖는 산 감지센서에 관한 것이다.In particular, the present invention relates to a sensor for detecting acid, and more particularly, to a sensor for detecting an acid solution formed in a tape form by a film material, To a sensor for detecting an acid.

등록특허 제10-1393074호에서는 베이스필름; 상기 베이스필름에 상기 베이스필름의 길이방향을 따라 나란하게 각각 형성된 전류전극과 저항전극을 포함하는 전극부; 상기 베이스필름과 전극부 상에 적층되고, 상기 전류전극의 일부가 노출되도록 타공된 제1 전극홀과 상기 저항전극의 일부가 노출되도록 상기 베이스필름의 길이방향을 따라 상기 제1 전극홀과 대응되는 위치에 타공된 제2 전극홀로 이루어진 전극홀 쌍이 복수 개 형성된 커버필름; 수분 흡수 재질로 이루어지고, 상기 복수 개의 전극홀 쌍 별로 상기 제1 전극홀과 제2 전극홀을 충진하며 연결시키도록 상기 커버필름 상에 개별적으로 코팅되는 복수 개의 수분흡수코팅층;을 포함하고, 상기 복수 개의 수분흡수코팅층 중 하나 이상에 수분이 침투되어 상기 전류전극과 저항전극이 통전되면 상기 전극부에 인가된 전류 값의 변화를 감지하여 누수 여부를 판별하는 필름형 누수감지센서를 제안하였다.Japanese Patent Registration No. 10-1393074 discloses a base film; An electrode portion including a current electrode and a resistance electrode formed on the base film in parallel with each other along the longitudinal direction of the base film; A first electrode hole laminated on the base film and the electrode portion, the first electrode hole being formed to expose a part of the current electrode, and the first electrode hole corresponding to the first electrode hole along a longitudinal direction of the base film, A cover film having a plurality of pairs of electrode holes formed of second electrode holes perforated at positions; And a plurality of water absorbing coating layers which are made of a water absorbing material and are individually coated on the cover film so as to fill and connect the first electrode holes and the second electrode holes for each of the plurality of electrode hole pairs, When the moisture penetrates into at least one of the plurality of water-absorbing coating layers and the current electrode and the resistance electrode are energized, a change in the current value applied to the electrode unit is sensed to determine whether leakage occurs.

그런데, 이러한 종래의 누수감지센서는 도전성을 갖는 산 용액이 누설된 경우에 단순히 빗물인지 아니면 산 용액이 누설되는지를 확인할 수 없다.However, such a conventional leak detection sensor can not confirm whether rainwater or acid solution leaks when an acid solution having conductivity is leaked.

또한 누설된 산 용액이 액체 상태로 존재하는 경우에 센싱의 감도가 좋아지지만, 센서의 상부면에서 결빙되는 경우에는 센싱의 감도가 저하되어 센서의 신뢰성이 매우 저하되는 문제점이 있다. Also, when the leaked acid solution is present in the liquid state, the sensitivity of the sensing is improved, but when the sensor is frozen on the upper surface, the sensitivity of the sensing is lowered and the reliability of the sensor is very low.

본 발명의 주된 목적은, 상기의 문제점을 해결하기 위하여 낮은 기온에서도 누설된 산 용액이 센서의 상부면에서 결빙되지 않도록 하여 센싱의 감도를 높이도록 한 발열구조를 갖는 산 감지센서를 제공하는데 있다.SUMMARY OF THE INVENTION It is a principal object of the present invention to provide an acid sensor having a heat generating structure to prevent the acid solution leaked from the upper surface of the sensor even at a low temperature to improve the sensitivity of the sensor.

상기와 같은 목적을 달성하기 위하여, 본 발명은To achieve these and other advantages and in accordance with the purpose of the present invention,

필름재질로 된 베이스층;A base layer made of a film material;

상기 베이스층의 상부면에서 길이방향으로 길게 형성되어 산 용액에 의해 저항값이 변화되는 감지라인;A sensing line formed on the upper surface of the base layer in a longitudinal direction and having a resistance value changed by an acid solution;

상기 베이스층의 상부면에서 길이방향으로 길게 형성된 감지라인;A sensing line extending longitudinally from an upper surface of the base layer;

상기 베이스층의 상부면에서 감지라인과 간격을 두고 나란히 전원라인;A power supply line arranged on the upper surface of the base layer in parallel with the sensing line;

필름재질로 되어 상기 베이스층의 상부면에 합지되며, 길이방향으로 상기 감지라인을 노출시키도록 노출공이 형성된 커버층;A cover layer formed of a film material and laminated on an upper surface of the base layer, the cover layer being formed with an exposing hole to expose the sensing line in a longitudinal direction;

상기 베이스층의 하부면에 형성되며, 상기 감지라인과 전원라인을 가운데 두고 외측방향에서 길이방향으로 길게 형성된 한 쌍의 전극;A pair of electrodes formed on the lower surface of the base layer and elongated in the longitudinal direction in the center of the sensing line and the power supply line;

상기 한 쌍의 전극 사이를 사다리 형태로 일정간격마다 연결하는 발열라인;A heating line connecting the pair of electrodes at a predetermined interval in a ladder shape;

상기 베이스층의 하부면에 합지되어 상기 한 쌍의 전극과 발열라인을 절연시키는 하부절연층;으로 구성된다.And a lower insulating layer laminated on a lower surface of the base layer to insulate the pair of electrodes from the heating line.

본 발명에 따른 산 감지센서는 누설된 산 용액이 결빙되는 것을 방지함으로써 누설감지의 감도를 높일 수 있어서 센싱의 신뢰성을 높이는 장점이 있다.The acid detection sensor according to the present invention has an advantage of enhancing the reliability of sensing by preventing the leaked acid solution from freezing, thereby increasing the sensitivity of the leakage detection.

도1은 본 발명에 의한 산 감지센의 구조를 보인 도.
도2는 베이스층의 하부면에 형성된 발열구조를 보인 도.
도3은 본 발명의 단면구조를 보인 도.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing the structure of a sensor according to the present invention; FIG.
2 is a view showing a heating structure formed on a lower surface of a base layer;
3 is a view showing a cross-sectional structure of the present invention.

이와 같이 구성된 본 발명을 첨부한 도면을 참조하여 상세히 설명한다.The present invention thus constructed will be described in detail with reference to the accompanying drawings.

도1은 본 발명에 의한 산 감지센서의 구조를 보인 도로서, 필름재질로 된 베이스층(100)의 상부면에는 길이방향으로 길게 감지라인(110)과 전원라인(120)이 서로 간격을 유지하면서 형성되는데, 이러한 감지라인(110)은 폴리아닐린 50 중량%, 전도성 카본 20 중량%, 바인더로서 메탈크릴산메탈 수지 30 중량%가 혼합되어 구성된다.FIG. 1 is a view showing a structure of a sensor according to the present invention. A sensing line 110 and a power source line 120 are spaced apart from each other in the longitudinal direction on the upper surface of a base layer 100 made of a film material. The sensing line 110 is formed by mixing 50% by weight of polyaniline, 20% by weight of conductive carbon, and 30% by weight of a metal methacrylic acid metal resin as a binder.

전도성 고분자로서 폴리아닐린은 물에는 반응하지 않고, 산에만 반응하여 저항값이 변화되는 물질이어서 산 성분만을 선택적으로 감지하는 것이다.As the conductive polymer, polyaniline reacts only with acid and does not react with water, so the resistance value changes, so that only the acid component is selectively detected.

전도성 카본은 감지라인(100)에 기본적인 전원을 흐르게 하는 성분이고, 바인더인 메탈크릴산메탈 수지는 전도성 고분자와 전도성 카본이 베이스층(100)의 상부면에 인쇄에 의해 형성될 수 있도록 한다.The conductive carbon is a component that supplies basic power to the sensing line 100, and the metal-chromic acid metal resin as a binder enables the conductive polymer and the conductive carbon to be formed by printing on the upper surface of the base layer 100.

전원라인(120)은 구리박판, 은 박판, 은과 카본 화합물 등 다양한 도전성의 갖는 재질로 형성된다.The power supply line 120 is formed of a material having various conductive properties such as a copper thin plate, a silver thin plate, a silver and a carbon compound.

상기 베이스층(110)의 상부면으로는 필름재질로 된 커버층(200)이 합지되며, 이러한 커버층(200)에는 상기 감지라인(110)이 형성된 위치와 대응되는 위치에만 노출공(210)이 형성됨으로써 감지라인(110) 부분만 상부 외측으로 노출시키게 된다.A cover layer 200 made of a film material is laminated on the upper surface of the base layer 110. The cover layer 200 covers the exposed holes 210 only at positions corresponding to the positions where the sensing lines 110 are formed. So that only the portion of the sensing line 110 is exposed to the outside.

또한, 감지라인(110)과 전원라인(120)의 단부는 서로 전기적으로 연결되어 컨트롤러로부터 공급되는 전원은 전원라인(120)을 통하여 감지라인(110)에 제공된다.In addition, the ends of the sensing line 110 and the power line 120 are electrically connected to each other, and power supplied from the controller is supplied to the sensing line 110 through the power line 120.

따라서 이러한 산 감지센서가 바닥에 길게 설치된 상태에서, 산 용액의 누설이 발생하게 되면, 상기 노출공(210)으로 산 용액이 유입되어 감지라인(110)과 접촉하게 되며, 이로인해 감지라인(110)의 저항값이 변화되므로 전원라인(120)과 감지라인(110)에 폐회로로 연결된 컨트롤러에서 산 용액의 누설경보를 발생하게 되는 것이다.Therefore, when the acid sensor is installed on the floor and leakage of the acid solution occurs, the acid solution flows into the exposure hole 210 and comes into contact with the sensing line 110, The leakage of the acid solution is generated in the controller connected to the power supply line 120 and the sensing line 110 by the closed circuit.

물론, 물이 누설되어 감지라인(110)에 접촉되는 경우에는 감지라인(110)이 반응하지 않게 되므로 저항값의 변화가 발생하지 않아 컨트롤러는 누설경보를 발생하지 않게 된다.Of course, when the water leaks and comes into contact with the sensing line 110, the sensing line 110 does not react, so that the resistance value does not change and the controller does not generate a leakage alarm.

한편, 산 감지센서의 상부면에서 산 용액이 결빙되는 경우를 방지하기 위하여, 베이스층(100)의 하부면에는 발열구조가 구비되는데, 도2에서와 같이 구리박판으로 된 전극(130,140)이 베이스층(100)의 상부면에 형성된 감지라인(110)과 전원라인(120)의 외측방향에 해당하는 위치에서 길이방향으로 나란히 부착된다.In order to prevent the acid solution from being frozen on the upper surface of the acid sensor, a heating structure is provided on the lower surface of the base layer 100. As shown in FIG. 2, The sensing line 110 formed on the upper surface of the layer 100 and the power line 120 are aligned in the longitudinal direction at positions corresponding to the outward directions of the power line 120.

즉, 감지라인(110)과 전원라인(120)을 가운데 두고, 그 좌우 양측에 각각 전극(130,140)이 부착되며, 그 한 쌍의 전극(130,140)을 카본, 카본 블랙, 그래핀 등으로 형성된 저항성을 갖는 발열라인(150)에 의해 연결하게 되며, 이때 발열라인(150)은 사다리 형태로 일정간격을 가지면서 형성된다.That is, electrodes 130 and 140 are attached to both the left and right sides of the sensing line 110 and the power supply line 120, and the pair of electrodes 130 and 140 are made of resistive material such as carbon, carbon black, The heat generating line 150 is formed in a ladder shape at regular intervals.

이때, 감지라인(110)과 전원라인(120)은 베이스층(100)의 상부면에 형성되고, 전극(130,240)과 발열라인(150)은 베이스층(100)의 하부면에 형성되므로 서로 간섭이 발생하지 않으면서 절연이 이루어 진다.Since the sensing line 110 and the power source line 120 are formed on the upper surface of the base layer 100 and the electrodes 130 and 240 and the heating line 150 are formed on the lower surface of the base layer 100, Insulation does not occur.

한편, 베이스층(100)의 하측으로는 필름재질 또는 양면테이프로 된 하부절연층(300)이 합지되어 전극(130,240)과 발열라인(150)을 외부환경으로부터 절연시키게 된다.On the other hand, a lower insulating layer 300 made of a film material or a double-sided tape is laminated on the lower side of the base layer 100 to insulate the electrodes 130 and 240 and the heating line 150 from the external environment.

도3은 이러한 구조의 단면 구조를 보인 도로서, 감지라인(110)과 전원라인(120), 그리고 전극(130,140)에 전원을 공급하기 위하여 핀(P1,P2,P3,P4)이 연결된 상태를 보여주는데, 핀(P1,P4)는 커버층(200), 베이스층(100), 전극(130,140), 하부절연층(300)을 관통함으로써 전극(130,140)에 발열을 위한 전원을 인가하여 발열라인(150)이 발열하도록 한다.3 shows a state where the pins P1, P2, P3, and P4 are connected to supply power to the sensing line 110, the power source line 120, and the electrodes 130 and 140, The pins P1 and P4 pass power through the cover layer 200, the base layer 100, the electrodes 130 and 140, and the lower insulating layer 300 to apply power to the electrodes 130 and 140, 150).

이로인하여 산 감지센서의 상부면에 열이 전달되어 누설된 용액의 결빙이 방지되는 것이다.As a result, heat is transferred to the upper surface of the sensor to prevent freezing of the leaked solution.

또한, 감지라인(110)과 전원라인(120)에 연결되는 핀(P2,P3)도 커버층(200), 베이스층(100), 하부절연층(300)을 관통하여 산 감지를 위한 전원을 공급하게 되는데, 이때 발열라인(150) 사이의 공간부위(S)에서 핀(P2,P3)이 관통하여 발열라인(150)과의 간섭이 발생하지 않는 것이다. The pins P2 and P3 connected to the sensing line 110 and the power line 120 may also pass through the cover layer 200, the base layer 100, and the lower insulating layer 300, At this time, the pins P2 and P3 pass through the space S between the heating lines 150, so that interference with the heating line 150 does not occur.

이상으로 본 발명 내용의 특정한 부분을 상세히 기술하였는 바, 당업계의 통상의 지식을 가진 자에게 있어서, 이러한 구체적 기술은 단지 바람직한 실시예일 뿐이며, 이에 의해 본 발명의 범위가 제한되는 것이 아닌 점은 명백할 것이다. 따라서, 본 발명의 실질적인 범위는 첨부된 청구항들과 그것들의 등가물에 의하여 정의된다고 할 것이다.While the present invention has been particularly shown and described with reference to specific embodiments thereof, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. something to do. Accordingly, the actual scope of the present invention will be defined by the appended claims and their equivalents.

100 : 베이스층 110 : 감지라인
120 : 전원라인
130,140 : 전극 150 : 발열라인
200 : 커버층 210,220 : 노출공
300 : 하부절연층100: base layer 110: sensing line
120: Power line
130, 140: electrode 150: heating line
200: cover layer 210, 220:
300: lower insulating layer

Claims (3)

필름재질로 된 베이스층;
상기 베이스층의 상부면에서 길이방향으로 길게 형성되어 산 용액에 의해 저항값이 변화되는 감지라인;
상기 베이스층의 상부면에서 감지라인과 간격을 두고 나란히 전원라인;
필름재질로 되어 상기 베이스층의 상부면에 합지되며, 길이방향으로 상기 감지라인을 노출시키도록 노출공이 형성된 커버층;
상기 베이스층의 하부면에 형성되며, 상기 감지라인과 전원라인을 가운데 두고 외측방향에서 길이방향으로 길게 형성된 한 쌍의 전극;
상기 한 쌍의 전극 사이를 사다리 형태로 일정간격마다 연결하는 발열라인;
상기 베이스층의 하부면에 합지되어 상기 한 쌍의 전극과 발열라인을 절연시키는 하부절연층;으로 구성된 것을 특징으로 하는 발열구조를 갖는 산 감지센서.
A base layer made of a film material;
A sensing line formed on the upper surface of the base layer in a longitudinal direction and having a resistance value changed by an acid solution;
A power supply line arranged on the upper surface of the base layer in parallel with the sensing line;
A cover layer formed of a film material and laminated on an upper surface of the base layer, the cover layer being formed with an exposing hole to expose the sensing line in a longitudinal direction;
A pair of electrodes formed on the lower surface of the base layer and elongated in the longitudinal direction in the center of the sensing line and the power supply line;
A heating line connecting the pair of electrodes at a predetermined interval in a ladder shape;
And a lower insulating layer laminated on a lower surface of the base layer to insulate the pair of electrodes from the heat generating line.
제1항에 있어서, 상기 감지라인은 전도성 고분자로서 폴리아닐린 50 중량%, 전도성 카본 20 중량%, 바인더로서 메탈크릴산메탈 수지 30 중량%가 혼합된 것을 특징으로 하는 발열구조를 갖는 산 감지센서.
The sensor as claimed in claim 1, wherein the sensing line comprises a mixture of 50% by weight of polyaniline, 20% by weight of conductive carbon, and 30% by weight of a metal methacrylic acid metal resin as a conductive polymer.
제1항에 있어서, 상기 전극은 구리박판으로 형성되고, 상기 발열라인은 카본 또는 카본 클랙 또는 그래핀 중 어느 하나로 형성된 것을 특징으로 하는 발열구조를 갖는 산 감지센서.
The sensor as claimed in claim 1, wherein the electrode is formed of a thin copper plate, and the heating line is formed of carbon, carbon, or graphene.
KR1020160104176A 2016-08-17 2016-08-17 Acid detection sensor with heating structure KR20180019894A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210017259A (en) 2019-08-07 2021-02-17 재단법인 구미전자정보기술원 An Internet of Things-based acid sensor system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210017259A (en) 2019-08-07 2021-02-17 재단법인 구미전자정보기술원 An Internet of Things-based acid sensor system

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