KR101393074B1 - Film-type water leakage sensing device - Google Patents

Film-type water leakage sensing device Download PDF

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Publication number
KR101393074B1
KR101393074B1 KR1020140011605A KR20140011605A KR101393074B1 KR 101393074 B1 KR101393074 B1 KR 101393074B1 KR 1020140011605 A KR1020140011605 A KR 1020140011605A KR 20140011605 A KR20140011605 A KR 20140011605A KR 101393074 B1 KR101393074 B1 KR 101393074B1
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electrode
film
electrode hole
water
hole
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KR1020140011605A
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Korean (ko)
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이병훈
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(주)하이큐브시스템
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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
    • G01M3/165—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means by means of cables or similar elongated devices, e.g. tapes
    • 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/009—Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range

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  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Molecular Biology (AREA)
  • Electrochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
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  • Examining Or Testing Airtightness (AREA)

Abstract

The present invention relates to a film type water leakage sensor which detects the development of water leakage by sensing the current value of a current electrode varied when an electric current phenomenon of the current electrode and a resistance electrode is generated in industrial sites by applying current to the current electrode and permeating at least one among multiple absorption coating layers with moisture. The film type water leakage sensor comprises: an electrode part which includes a base film for sensing water leakage and oil leakage, and the current electrode and the resistance electrode respectively formed on the base film to be lined up along the longitudinal direction of the base film; a cover film which is laminated on the base film and electrode part, and includes a plurality of pairs of a first electrode hole punched in order to expose a part of the current electrode and a second electrode hole punched at a position corresponding to the first electrode hole along the longitudinal direction of the base film in order to expose a part of the resistance electrode; and multiple moisture adsorption coating layers which are coated on the cover film and are made up of moisture absorption materials being respectively coated on each electrode hole pair so that the first electrode hole and the second electrode hole are filled and are connected to each other. The water leakage sensor contributes durability by reducing the malfunction of the water leakage sensor on conductive materials and preventing sensing failure of the water leakage sensor by protecting electrodes from contamination. Ultimately, the present invention provides the film type water leakage sensor having multiple functions in order to be used economically and pragmatically, thereby reducing installation costs and being able to provide the film type water leakage sensor for hypersensitive operation.

Description

[0001] FILM-TYPE WATER LEAKAGE SENSING DEVICE [0002]

The present invention relates to a leak detection sensor in the form of a film, and more particularly to a multifunctional sensor capable of detecting contamination of conductive and non-conductive leakage, which is particularly resistant to contamination and can be relocated after installation.

As technology develops in modern society, it is required to refine the machine and facility facilities and to make them more advanced. Accelerating the refinement, the more sensitive the machine or computer equipment becomes. In particular, leaks or leaks in semiconductor facilities or major electronic facility processes can lead to systematic errors and lead to major accidents. Therefore, the leak detection system has become an essential control system in industrial society.

As described in Korean Patent Laid-Open Publication No. 10-2011-0137862, the existing leakage detection sensor has a uniform resistance per unit area as described in " Method of Manufacturing Leakage and Cutting Detection Sensor " It is a sensor that senses leakage through the changed resistance value when the conductor and the conductive line are short-circuited by the leaked water.

However, in the detection of leakage of conductive liquid, social and economic costs are incurred due to the malfunction of the leak sensor when the conductive wire and the conductive line are contacted with other conductive materials such as human body, metal, metallic dust, And the reliability of the leak sensor is deteriorating due to the problem that the leakage sensor does not operate when flowing through only one of the copper wire and the conductive line in the vertically falling leak. Also, in the case of a film type in which a circuit is incorporated, an expensive connector must be separately used at the time of installation due to problems such as disconnection of circuits in the direction change. Also, in the field where a nonconductive liquid and a conductive liquid are used together, it is necessary to use a number of leakage detection sensors to confirm the leakage. Therefore, in practical use of the leakage sensor in an environment using pure water or nonconductive liquid or chemical liquid, In addition to leak detection sensors, it is difficult to install multiple leak detection sensors such as non-electrolytic leak detection sensors and acid or base-resistant leak detection sensors.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a film type leak sensor including a base film, an electrode portion, a cover film and an absorbent coating layer, The cover film on which the electrode hole pairs are formed and the water-absorbing coating layer of the water-absorbing material coated on the cover film by the pair of electrode holes on the cover film are filled, And it is an object of the present invention to provide a film type leak sensor which can accurately detect the leakage of water flowing vertically during vertical installation.

It is another object of the present invention to provide a film type leak sensor which can be installed on a curved surface and improves the applicability of the sensor in terms of efficiency and construction.

Still another object of the present invention is to provide a film type leak detection sensor which can be used in various industries by detecting a conductive / nonconductive liquid using one sensor.

Another object of the present invention is to provide a film type leak sensor capable of detecting leakage of various liquids through a single sensor, thereby minimizing industrial costs and contributing to social and economic cost reduction in industry .

According to an aspect of the present invention for achieving the above object, 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; And an electrode hole formed on the base film and the electrode portion so as to expose a part of the current electrode and a portion corresponding to the electrode hole along the longitudinal direction of the base film so that a part of the resistor electrode is exposed A cover film having a plurality of pairs of electrode holes formed by perforated electrode holes; A plurality of moisture-absorbing coating layers coated on the cover film, the plurality of water-absorbing coating layers being individually coated on the plurality of pairs of electrode holes so that the first electrode holes and the second electrode holes are filled and connected to each other; Wherein a current is applied to the current electrode, moisture is penetrated into at least one of the plurality of water-absorbing coating layers, and a current value of the current electrode, which is varied due to a conduction phenomenon of the current electrode and the resistance electrode, Thereby determining whether or not the leak is detected.

The water-absorbing coating layer is coated on the pair of electrode holes so that the first electrode hole and the second electrode hole can be electrically connected to each other by the diffusion of the water, Shaped and symmetrical with respect to a virtual center line.

In addition, the cover film may protrude in a V-shape corresponding to the water-absorbing coating layer so that water leakage may be induced along the water-absorbing coating layer and diffused into the first electrode hole and the second electrode hole, A liquid guiding protrusion protruding beyond a position adjacent to the hole and the second electrode hole is further formed.

The first electrode hole and the second electrode hole are formed to have the same diameter, and the water-absorbing coating layer has a width corresponding to the diameter of the first electrode hole and the second electrode hole, And the liquid guiding protrusion 133 is formed along the bottom surface of the water-absorbing coating layer.

In addition, a multi-sensor film may be further provided at the lower portion of the base film so as to make a chemical reaction by contacting the non-conductive liquid in the longitudinal direction with the non-conductive leakage in the longitudinal direction to visually confirm leakage.

The base film and the cover film are made of a nonconductive plastic having flexibility.

In addition, the current electrode and the resistance electrode are made of a conductive plastic film having flexibility.

In addition, the current electrode and the resistance electrode are electro-printed in a longitudinal direction with the conductive ink linearly on the conductive plastic film.

As described above, according to the present invention, it is possible to minimize a malfunction due to a conductive material or foreign matter other than leakage in the operation of the leakage detection sensor, and to precisely detect the leaked water flowing vertically at the time of vertical installation A film type leak sensor can be provided.

In addition, according to the present invention, it is possible to provide a film-type leak sensor that can be installed on a curved surface to improve the applicability of the field on the efficiency and construction of the sensor.

In addition, according to the present invention, it is possible to provide a film-type leak sensor capable of detecting a conductive / nonconductive liquid using one sensor to be used in various industries.

In addition, according to the present invention, it is possible to provide a film type leak sensor capable of detecting leakage of various liquids through a single sensor, thereby minimizing industrial costs and contributing to reduction of social and economic costs in industry .

1 is an upper perspective view of a film type leak sensor according to the present invention.
2 is a cross-sectional view taken along line AA 'of the film type leak sensor according to the present invention.
3 is a sectional view of the film type leak sensor according to the present invention taken along BB 'line.
4 is a CC 'sectional view of a film type leak sensor according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings.

The present invention may, however, be embodied in different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals designate like elements throughout the specification.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the drawings for explaining a film type leak sensor 100 that can be installed on a cable surface, a wall surface, or a floor according to embodiments of the present invention.

1 is a top perspective view of a leakage detection sensor according to the present invention.

2 is a sectional view taken along the line AA 'of the leakage sensor according to the present invention.

1 and 2, the film type leak sensor includes a base film 110, a base film 110, an electrode portion 120, a cover film 130, and a water absorbing coating layer 140.

An electrode part 120 including a current electrode 121 and a resistance electrode 122 formed on the base film 110 in parallel to each other along the longitudinal direction of the base film 110, The first electrode hole 131 and the resistor electrode 122 are stacked on the first electrode layer 120 and the first electrode hole 131 is exposed to expose a part of the current electrode 121, A cover film 130 formed with a plurality of pairs of electrode holes including a second electrode hole 132 punched at a position corresponding to the first electrode hole 131 along the first electrode hole 131, A plurality of water-absorbing coating layers 140 made of a water-absorbing material individually coated on each of the plurality of electrode hole pairs so that the first electrode holes 131 and the second electrode holes 132 are filled and connected to each other; Wherein a current is applied to the current electrode 121 and moisture is penetrated into at least one of the plurality of water absorbing coating layers 140 so that the current between the current electrode 121 and the resistance electrode 122 By detecting the current value of the current electrode 121 which is generated and varied, it is determined whether leakage occurs.

Since the base film 110, the cover film 130, and the dried moisture-absorbing coating layer 140 have nonconductive properties, even when the conductive material contacts the film-type leak sensor, no malfunction occurs. However, The water absorbing coating layer 140 is wetted and the current electrode 121 and the resistance electrode 122 are energized through the water-impermeable water-absorbing coating layer 140 to enable detection of leakage.

In addition, the water-absorbing coating layer 140 protects against dust, dust, and the like when leakage water does not occur, thereby reducing the occurrence of malfunctions. In the event of water leakage, water is absorbed and diffused into the water- It is possible to energize the current electrode 121 and the resistance electrode 122 even if leakage occurs, thereby enabling leak detection.

The water-absorbing coating layer 140 is coated on the pair of electrode holes so that the first electrode hole 131 and the second electrode hole 132 can be electrically connected to each other by the diffusion of water, And a virtual center line extending along the center of the second electrode hole 132. The V-

Therefore, even if leakage occurs along the longitudinal direction of the base film 110 and flows only along the current electrode 121 or the resistance electrode 122, the first electrode hole 131 and the second electrode hole 131 are formed through the diffusion of the water- The water-absorbing coating layer 140 is formed in a V-shape at the time of vertically mounting the film-type water-leakage sensor, so that the leakage of the water is absorbed along the water-absorbing coating layer 140 So that the water-absorbing coating layer 140 can be exposed to quickly detect the leakage.

3 is a sectional view of BB 'of the leakage sensor according to the present invention.

4 is a cross-sectional view of the water leak sensor according to the present invention taken along line CC '.

3 and 4, the cover film 130 of the present invention has a liquid guiding protrusion 133 formed thereon.

The cover film may be formed to have a thickness corresponding to V corresponding to the water absorbing coating layer 140 so that a leakage water is guided along the water absorbing coating layer 140 and diffused into the first electrode hole 131 and the second electrode hole 132. [ A liquid guiding protrusion 133 protruding from a position adjacent to the first electrode hole 131 and the second electrode hole 132 is further formed.

At this time, the liquid-guiding protrusion 133 is positioned on the cover film 130, and a leakage water is guided along the water-absorbing coating layer 140 to a position where the V-shaped thermal angle a is formed, (B) in the water-absorbing coating layer 140 so as to diffuse into the hole 131 and the second electrode hole 132, and one water-absorbing coating layer 140, and a plurality of liquid guiding protrusions 133 are formed on the film type leak sensor.

The first electrode hole 131 and the second electrode hole 132 are formed to have the same diameter and the water absorbing coating layer 140 is formed on the first electrode hole 131 and the second electrode hole 132 And the liquid induction protrusion 133 is formed along the lower end surface of the water absorbing coating layer 140 so that the first electrode hole 131 and the second electrode hole 132 are filled, do.

Therefore, when the water flows along the liquid guiding protrusions 133, when the water-absorbing coating layer 140 is wetted, the water is penetrated into the current electrodes 121 and the resistance electrodes 122 along the filled water-absorbing coating layer 140 The first electrode hole 131 and the second electrode hole 132 are formed so as to flow very close to the first electrode hole 131 and the second electrode hole 132 in the center direction of the first electrode hole 131 and the second electrode hole 132, And the resistance electrode 122 are energized to enable an initial response of a leakage occurrence accident.

The multi-sensor film 111 is further provided on the lower portion of the base film 110 so as to contact the non-conductive liquid in the lengthwise direction of the non-conductive liquid when the non-conductive liquid leaks, thereby causing a chemical reaction to visually confirm leakage.

That is, the multi-sensor film 111 reacts with the leakage of liquid when the non-conductive liquid is leaked, and it is possible to confirm leakage of the non-conductive liquid through physical changes such as foaming and expansion.

The base film 110 and the cover film 130 are made of a non-conductive plastic having flexibility.

The current electrode 121 and the resistance electrode 122 are made of a flexible conductive plastic film.

The current electrode 121 and the resistance electrode 122 are electro-printed in a longitudinal direction linearly on the conductive plastic film.

At this time, the electro-printed conductive ink has a double conductivity in addition to the conductive plastic film, thereby preventing malfunction of detection of leakage due to abrasion, breakage or disconnection.

Therefore, the film type leak sensor is made of flexible plastic and can be installed on a curved surface or a curved surface.

That is, the film-type leak sensor has flexibility by using a film-like material as a whole, unlike a conventional leak detection sensor, it can be installed in a direction or bend or a concave- The adhesive agent is not applied to the lower part of the substrate, so that it can be reused even in a mobile installation due to environmental changes.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.

110: base film 111: multi-sensor film
120: electrode part 121: current electrode
122: resistance electrode 130: cover film
131: first electrode hole 132: second electrode hole
133: liquid guiding protrusion 140: water absorbing coating layer

Claims (8)

A base film 110;
An electrode unit 120 including a current electrode 121 and a resistance electrode 122 formed on the base film 110 in parallel with the longitudinal direction of the base film 110;
The first electrode hole 131 is formed on the base film 110 and the electrode unit 120 so that a part of the current electrode 121 is exposed and a part of the resistance electrode 122 is exposed. A cover film 130 formed with a plurality of pairs of electrode holes formed of second electrode holes 132 formed at positions corresponding to the first electrode holes 131 along the longitudinal direction of the base film 110;
A plurality of water absorbing coating layers formed on the cover film so as to fill and connect the first electrode holes 131 and the second electrode holes 132 for each of the plurality of electrode hole pairs, (140); / RTI >
When moisture penetrates into at least one of the plurality of water absorbing coating layers 140 and the current electrode 121 and the resistance electrode 122 are energized, a change in the current value applied to the electrode unit is sensed to determine whether or not the electrode is leaked Film type leak detection sensor.
The method of claim 1, wherein the water-absorbing coating layer (140)
The first electrode hole 131 and the second electrode hole 132 may be coated by the diffusion of the leakage water,
Like shape symmetrically with respect to an imaginary center line extending along the center of the first electrode hole (131) and the second electrode hole (132).
The method according to claim 2,
A leakage water is guided along the water-absorbing coating layer and protruded in a V-shape corresponding to the water-absorbing coating layer so as to be diffused into the first electrode hole 131 and the second electrode hole 132, Further comprising a liquid guiding protrusion (133) protruding from a position adjacent to the first electrode hole (131) and the second electrode hole (132).
The method of claim 3,
The first electrode hole and the second electrode hole are formed to have the same diameter,
Wherein the water-absorbing coating layer has a width corresponding to a diameter of the first electrode hole and the second electrode hole and is coated to fill the first electrode hole and the second electrode hole,
Wherein the liquid-guiding protrusion (133) is formed along the bottom surface of the water-absorbing coating layer.
The method of claim 1, wherein the base film (110)
And a multi-sensor film (111) for contacting the non-conductive liquid with the non-conductive liquid in the longitudinal direction to cause a chemical reaction to visually confirm leakage.
The method of claim 1, wherein the base film (110) and the cover film (130)
Wherein the flexible film is made of a non-conductive plastic having flexibility.
2. The method of claim 1, wherein the current electrode (121) and the resistance electrode (122)
Wherein the flexible film is made of a conductive plastic film having flexibility.
2. The method of claim 1, wherein the current electrode (121) and the resistance electrode (122)
Wherein a conductive ink is electrically printed on the conductive plastic film.

KR1020140011605A 2014-01-29 2014-01-29 Film-type water leakage sensing device KR101393074B1 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101591918B1 (en) * 2014-06-03 2016-02-04 오토센서코리아(주) Leak detection sensors
KR101661862B1 (en) 2015-10-22 2016-10-04 주식회사 옵티멀 System for monitoring semiconductor fabrication facility
KR20180019892A (en) * 2016-08-17 2018-02-27 주식회사 아바오 Water leak detection sensor with heating structure
KR20190014937A (en) * 2017-08-04 2019-02-13 주식회사 젠스타 Water leakage monitoring system and water leakage monitoring method
CN111480066A (en) * 2017-12-18 2020-07-31 拓自达电线株式会社 Liquid detection sensor and liquid detection device
KR20220097706A (en) * 2020-12-30 2022-07-08 (주)유민에쓰티 Capacitive leak detection sensor and manufacturing method therof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101200923B1 (en) 2010-04-05 2012-11-20 (주)유민에쓰티 Capacitance type level sensor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101200923B1 (en) 2010-04-05 2012-11-20 (주)유민에쓰티 Capacitance type level sensor

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101591918B1 (en) * 2014-06-03 2016-02-04 오토센서코리아(주) Leak detection sensors
KR101661862B1 (en) 2015-10-22 2016-10-04 주식회사 옵티멀 System for monitoring semiconductor fabrication facility
KR20180019892A (en) * 2016-08-17 2018-02-27 주식회사 아바오 Water leak detection sensor with heating structure
KR20190014937A (en) * 2017-08-04 2019-02-13 주식회사 젠스타 Water leakage monitoring system and water leakage monitoring method
KR102026360B1 (en) * 2017-08-04 2019-09-27 주식회사 젠스타 Water leakage monitoring system and water leakage monitoring method
CN111480066A (en) * 2017-12-18 2020-07-31 拓自达电线株式会社 Liquid detection sensor and liquid detection device
CN111480066B (en) * 2017-12-18 2023-11-07 拓自达电线株式会社 Liquid detection sensor and liquid detection device
KR20220097706A (en) * 2020-12-30 2022-07-08 (주)유민에쓰티 Capacitive leak detection sensor and manufacturing method therof
KR102630224B1 (en) * 2020-12-30 2024-01-30 (주)유민에쓰티 Capacitive leak detection sensor and manufacturing method therof

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