WO2012111157A1 - Liquid detection device - Google Patents

Liquid detection device Download PDF

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Publication number
WO2012111157A1
WO2012111157A1 PCT/JP2011/053557 JP2011053557W WO2012111157A1 WO 2012111157 A1 WO2012111157 A1 WO 2012111157A1 JP 2011053557 W JP2011053557 W JP 2011053557W WO 2012111157 A1 WO2012111157 A1 WO 2012111157A1
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WO
WIPO (PCT)
Prior art keywords
connector
liquid detection
detection device
positive electrode
connector terminal
Prior art date
Application number
PCT/JP2011/053557
Other languages
French (fr)
Japanese (ja)
Inventor
石川　忠
鎌谷　直之
良明 長谷部
Original Assignee
日本協能電子株式会社
株式会社 スタージェン
株式会社 スマートメド
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本協能電子株式会社, 株式会社 スタージェン, 株式会社 スマートメド filed Critical 日本協能電子株式会社
Priority to PCT/JP2011/053557 priority Critical patent/WO2012111157A1/en
Priority to CN201180070225.9A priority patent/CN103491995B/en
Priority to JP2012557767A priority patent/JP5834290B2/en
Priority to TW101105098A priority patent/TW201249492A/en
Publication of WO2012111157A1 publication Critical patent/WO2012111157A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
    • A61F5/48—Devices for preventing wetting or pollution of the bed

Definitions

  • the present invention relates to a liquid detection apparatus, and more particularly, to a liquid detection apparatus for quickly detecting leakage of blood or drip liquid in the medical field, urine excreted by a person or animal, and notifying the outside.
  • Patent Document 1 discloses a liquid detection device including a circuit component in which a circuit is formed on a copper clad laminate, a circuit terminal disposed at an end of the circuit component, and a sensor body.
  • An object of the present invention is an improvement of a conventional liquid detection device, which does not require external power supply, can detect liquid leakage and the like with a simple configuration, and can notify the outside of the member.
  • An object of the present invention is to provide a liquid detection device that is relatively easy to mount and replace.
  • the present invention is directed to a liquid detection device having a sensor structure and a notification device electrically connected to the sensor structure via a connector.
  • the present invention is characterized in that the sensor structure includes a water battery using a liquid as a catalyst, and the connector includes a first pair of first connector terminals connected to electrodes of the water battery.
  • a connector and a second connector having a pair of second connector terminals connected to the electrodes of the notification device, wherein the first connector and the second connector are detachably connected to each other, and the first connector One connector terminal and the second connector terminal are electrically connected.
  • the first connector terminal and the second connector terminal are connected by snap engagement.
  • the first connector terminal has a male snap shape having a convex cylindrical engagement portion, and a positive electrode portion is formed on the engagement portion.
  • An insulating part and a negative electrode part extending concentrically with the positive electrode part in the circumferential direction are formed
  • the second connector terminal has a female snap shape having an engagement hole at the center thereof.
  • a negative electrode part is formed along the opening edge of the engagement hole, and an insulating part and a positive electrode part extending concentrically with the negative electrode part in the circumferential direction are formed.
  • the second connector includes a male fastener-shaped electrode portion to which the second connector terminal is attached, and the first connector is a part of the electrode portion. Is a female fastener shape having a groove into which the first connector and the electrode portion of the second connector are connected to each other by fastener engagement.
  • the electrode portion of the second connector has a substantially I-shaped cross section, and includes an upper portion, a lower portion, and a narrow portion positioned therebetween.
  • the thin plate-like second connector terminals are attached to both sides of the narrow portion, and the thin plate-like first connector terminals are attached to both ends forming the lower portion of the groove of the first connector.
  • the first connector terminal and the second connector terminal are brought into close contact with each other by fitting the upper part and the narrow part of the electrode part into the groove of the first connector.
  • the notification device is provided with a booster circuit section for boosting the power supply voltage of the water battery.
  • the booster circuit unit includes at least a transformer for boost oscillation and a transistor, and a base terminal of the transistor is connected to a secondary side of the transformer, so that positive feedback oscillation is performed. A boost pulse is generated.
  • the water battery is interposed between one positive electrode plate, two negative electrode plates, and the positive electrode plate and the negative electrode plate.
  • a positive electrode active material that is in direct contact with them or indirectly through an insulating member, and a separation dimension between the positive electrode plate and one negative electrode plate is such that the positive electrode plate and the other negative electrode The distance from the electrode plate is almost the same.
  • a fastening means for fastening to a worn article is provided on the outer surface of the notification device.
  • the first connector connected to the electrode of the water battery and the second connector connected to the electrode of the alarm device are detachably connected, and the first connector terminals thereof. And the second connector terminal are electrically connected to each other, so that the sensor structure can be easily attached and detached, and has excellent operability. Further, by having such a configuration, after use, only the sensor structure can be replaced and discarded, and the notification device can be reused. Therefore, even when it is used for detecting urination frequently used, the cost can be kept low and it is economical.
  • FIG. 4 is a sectional view taken along line IV-IV in FIG. 2.
  • the perspective view of the liquid detection apparatus similar to FIG. 2 in 2nd Embodiment.
  • XI-XI sectional view taken on the line of FIG. The enlarged view of the electrode part of the 1st connector and 2nd connector in 3rd Embodiment.
  • the figure which shows the other usage example of a liquid detection apparatus. The figure which shows the attachment state of the liquid detection apparatus with respect to the pad for body fluid processing.
  • the liquid detection device 10 includes an infusion tube 11 connected to an infusion bag or a blood collection bag, and a winged needle (injection) connected to the tube 11 and inserted into a blood vessel of a patient's hand 12.
  • Needle) 14 a sensor structure 16 fixed to the patient's hand 12 via an adhesive tape 15, and a notification device 18 connected to the sensor structure 16 via a connector 17.
  • the connector 17 is a first connector 19A connected to the sensor structure 16. And a second connector 19B to which an electrode of the notification device 18 is attached.
  • the sensor structure 16 is disposed on the distal end portion 14a of the winged needle 14 inserted into the patient's blood vessel, and is fixed to the back of the patient's hand 12 by the adhesive tape 15.
  • the “liquid” targeted by the liquid detection device 10 of the present invention refers to various infusions such as blood, drip, cerebrospinal fluid, ascites, pleural effusion in the medical field, and excreted from the human body in the nursing field. It means urine and stool that are excreted by pet animals.
  • the sensor structure 16 has a pad shape and is a liquid-permeable sheet, for example, encapsulating a continuous foamed member having elastic resilience such as a fiber non-woven fabric, cotton and rayon, and optionally urethane.
  • the water battery 21 located inside the absorption member 20.
  • the absorbing member 20 is formed of an upper portion 20a and a lower portion 20b that cover the water battery 21 from above and below, respectively, and an outer peripheral edge 16a thereof is sealed by an adhesive or heat seal processing. Since the entire water battery 21 is encapsulated by the absorbing member 20, the water battery 21 does not directly touch the skin, and the sensor structure 16 feels good.
  • the absorption member 20 is not an essential structure, and the sensor structure 16 may be comprised only from the water battery.
  • the cushioning property is improved, so that the water battery 21 is deformed even when a pressure such as body pressure is applied to the sensor structure 16. There is no risk of discomfort to the wearer.
  • the sensor structure 16 Since the sensor structure 16 is disposed at a position facing the distal end portion 14a of the winged needle 14, blood or drip solution from a blood vessel site slightly raised by insertion of the distal end portion 14a of the winged needle 14 during treatment. Or the like leaks into a part or the whole of the absorbing member 20.
  • the water battery 21 causes an electrochemical reaction in the water battery 21 to generate an electromotive force.
  • the generated electromotive force causes a current to flow through the notification device 18 via the connector 17, and the notification device 18 is activated to generate a buzzer sound.
  • the sensor structure 16 detects a liquid leak and the notification device 18 notifies the outside of the liquid leak, a medical accident or the like due to the liquid leak can be prevented in advance.
  • the sensor structure 16 has a role as a sensor for detecting liquid leakage and the like, and also has a role as a power supply source for operating the notification device 18. Compared to automatic liquid detection devices (systems) using precision instruments including elements, etc., it is extremely simple and inexpensive, and it does not require external power supply, so there is no risk of electric shock or leakage, and it is safe. It is.
  • the water battery 21 has an upper surface 22A and a lower surface 22B, one thin plate-like positive electrode plate 23, and two thin plate-like plates that are substantially the same shape and size as the positive electrode plate 23.
  • the positive electrode plate 23 is made of a metal having a relatively high conductivity and a small ionization tendency, which is electrochemically stable, for example, a metal such as nickel, copper, silver, or an alloy mainly composed of these metals.
  • the negative electrode plate 24 is made of an electrode active material having a relatively large tendency to ionize and / or oxidize, such as metal magnesium, aluminum, zinc, or an alloy containing at least two of them.
  • the positive electrode active material 26 is in the form of a powder that is fixed to the inner surface of the bag-like portion 25a of the wrap sheet 25 via an adhesive applied in the form of a spray and has a relatively strong oxidizing power, such as activated carbon. , Manganese dioxide, iron oxide, crystalline silver oxide and the like, and the type and mixing ratio of the mixture can be freely set according to the required oxidizing power. In order to reduce the thickness of the water battery 21, various powders such as activated carbon may be formed into a sheet shape and fixed to the inner surface of the bag-like portion 25a with an adhesive.
  • the positive electrode plate 23 is inserted into the positive electrode active material 26, and each negative electrode plate 24 is in contact with the upper and lower surfaces 22A, 22B of the bag-like portion 25a of the wrap sheet 25, It arrange
  • a part of the extending portion 25b extending continuously from the bag-like portion 25a of the wrap sheet 25 is folded along a folding line 30 that bisects the length in the width direction, and the inner portion 31 thereof. Is in contact with the negative electrode plate 24 disposed on the upper surface of the bag-shaped portion 25a, and the outer portion 32 is in contact with the negative electrode plate 24 disposed on the lower surface of the bag-shaped portion 25a.
  • the water battery 21 is formed by being encapsulated in a state where the respective constituent members are laminated by the extending portion 25 b of the wrap sheet 25.
  • the water battery 21 is bonded to each other by the adhesive applied to the wrap sheet 25 and the negative electrode plate 24 between the opposing surfaces of the lap sheet 25 that overlap each other, and sandwiches the entire battery cell 21.
  • the laminated state is maintained by a fixing member 35 made of hard plastic or metal whose both side portions 35a and 35b are bent.
  • an impact is applied to the water battery 21 from the outside by bending one side portion 35a of the fixing member 35 inserted into a through hole formed in a part of the wrap sheet 25. Even if the fixing member 35 is removed, it can be prevented that the fixing member 35 is inadvertently detached from the water battery 21.
  • the water battery 21 has one internal battery structure in which the negative electrode plates 24 and the positive electrode plates 23 are alternately arranged from the upper and lower surfaces 22A and 22B toward the center.
  • the electrochemical area is increased, and it can be said that electricity can be generated more easily. That is, the separation distance between the negative electrode plate 24 and the positive electrode plate 23 located on the upper surface 22A side of the water battery 21 and the separation distance between the negative electrode plate 24 and the positive electrode plate 23 located on the lower surface 22B side are substantially equal. Since the positive electrode active material 26 is filled between the electrode plates 23 and 24, an equal electromotive force can be generated in the thickness direction of the water battery 21. Therefore, all the positive electrode active materials 26 can be utilized for the power generation action without waste.
  • the first connector 19A of the connector 17 has a substantially triangular shape and is connected to a pair of lead wires housed in a cord 40 extending from the water battery 21, respectively.
  • 1st connector terminal 41a, 41b and a pair of protective sheet 43 which encloses them from the upper and lower sides are included.
  • One protective sheet 43 is formed with a pair of substantially circular through holes 45.
  • the first connector terminal (positive electrode) 41a has a male snap shape having a convex cylindrical engagement portion protruding from the through hole 45
  • the first connector terminal (negative electrode) 41b is a female having an engagement hole at the center thereof. Each has a snap shape and is exposed from the through hole 45 of the protective sheet 43.
  • the notification device 18 includes a cloth or plastic second connector 19B having an open end 50a, and a substantially rectangular case 51 accommodated therein.
  • the case 51 includes a main body 51a on which a plurality of electric elements are arranged, and a lid body 51b that fits along the outer peripheral edge of the main body 51a.
  • a cutout is formed in a part of the main body 51a and the lid 51b, and a lever 53a of the switch 53 protrudes from an opening formed by the cutout.
  • the second connector 19B is formed with an opening 54 communicating with the through-hole of the lid 51b of the case 51 for generating a buzzer sound of a buzzer arranged inside.
  • the second connector 19B a pair of circular openings are formed on the opening end 50a side of the opening 54, and the opening edge on the inner surface side thereof is connected to the internal circuit of the alarm device 18 and the lead wire 47.
  • the connected second connector terminal (positive electrode) 48a and second connector terminal (negative electrode) 48b are fixed.
  • the second connector terminal 48a has a male snap shape having a convex cylindrical engagement portion protruding from the opening, and the second connector terminal 48b has a female snap shape having an engagement hole defined at the center thereof. They are respectively exposed from the opening of the second connector 19B.
  • the first connector terminals 41a and 41b and the second connector terminals 48a and 48b having such a shape are respectively paired with each other, a first connector terminal (positive electrode) 41a, a second connector terminal (negative electrode) 48b, and a first connector terminal.
  • 41b (negative electrode) and second connector terminal (positive electrode) 48a are snap-engaged, whereby the water battery 21 is electrically connected to the notification device 18 and the liquid detection device 10 is energized.
  • the sensor structure 16 and the notification device 18 can be reliably connected by a simple operation by snap engagement, so that when connecting them via other fixing members, a jack, an adapter, etc.
  • the operability is excellent as compared with the case of connecting by the connector means.
  • the snap engagement can be released, the sensor structure 16 can be removed from the notification device 18, and only it can be replaced and discarded, so that it can be newly used. Since the replacement work can be performed quickly and the cost can be minimized, it is economical.
  • a printed circuit board 55 is disposed inside the main body 51 a of the case 51, and the printed circuit board 55 can boost the voltage supplied from the water battery 21 to a necessary voltage.
  • a unit 56 and a sound generation unit 57 composed of a buzzer.
  • the step-up circuit unit 56 includes a step-up oscillation transformer (flyback transformer) 60 connected to a connector terminal 41a (positive electrode) of a DC power source by the water battery 21, and a MOSFET or bipolar NPN transistor 61 for oscillation drive. , A base bias resistor 62 and a capacitor 63 connected in parallel between the transformer 60 and the transistor 61, and a diode 65 for rectifying the boosted voltage.
  • the transformer 60 has a primary winding and a secondary winding (not shown), and the primary winding is a right-handed enamel wire having a wire diameter of about 0.15 mm around an iron core (toroidal core). 50 turns (inductance: about 22 to 33 ⁇ H), the secondary winding is formed by winding an enameled wire with a wire diameter of about 0.2 mm around the iron core 20 times in a left turn.
  • the primary winding and the secondary winding The turn ratio with the winding is 2.5.
  • resistance wires for forming primary and secondary windings in addition to enamel wires and aluminum wires used as ordinary coils, the electrical resistance is relatively large.
  • iron, copper nickel alloy, copper manganese alloy Wire rods such as iron nickel alloy and stainless steel wire can be used.
  • the secondary winding of the transformer 60 is connected with a resistance element 62 of about 3.3 K ⁇ and a capacitor 63 of about 0.1 ⁇ F in parallel.
  • the resistance element 62 and the capacitor 63 are connected to the base terminal of the transistor 61. It is connected.
  • the collector terminal of the transistor 61 is connected to the primary winding of the transformer 60, and the emitter terminal is connected to the negative terminal of the DC power supply.
  • the base bias voltage is applied to the base terminal of the transistor 61 from the DC power source through the secondary winding of the transformer 60 and the resistance element 62.
  • a base current flows between the base and the emitter.
  • the transistor 61 is turned on, and a current also flows through the primary winding of the transformer 60. Due to the inrush current generated at this time, a change in the magnetic field occurs in the primary winding, and a pulse that becomes induced power is generated in the secondary winding.
  • the input voltage is generated in the reverse direction, and the secondary winding is applied to the primary winding according to the turns ratio of the primary winding to the secondary winding.
  • An induced voltage that is several to several tens of times the input voltage is generated.
  • the base bias voltage decreases and the base current decreases due to the pulse caused by the induced voltage.
  • the collector current decreases and the collector voltage increases.
  • the amplified collector voltage becomes low level, induced power is generated again in the secondary winding, and the positive feedback oscillation state of the boost pulse is maintained by repeating these operations.
  • the water battery 21 and the notification device 18 are energized by sliding the lever 53a and turning on the switch 53, and liquid is supplied between the electrodes of the water battery 21.
  • the boosting circuit unit 56 boosts the electromotive force to a required magnitude, and the buzzer of the sound generation unit 57 is activated to generate a buzzer sound.
  • the circuit itself has a relatively compact size, it is suitable for use of a small device such as the notification device 18 of the present embodiment.
  • the electromotive force generated by the electrochemical reaction of the water battery 21 according to the present invention is about 1.5 V. If the electromotive force is such a magnitude, the buzzer of the sound generating unit 57 can be used without using a booster circuit. Sound can be activated (can be used for 20 hours with about 0.045 W power), but the alarm device 18 has not only the sound generating unit 57 but also a light emitting unit composed of a plurality of light emitting diodes, or a motor is used. In the case of having a vibrator function to vibrate, an electromotive force of about 5.0 V or more is required to activate them. In such a case, it is necessary to use the booster circuit 56 described above.
  • FIG. 8 is a perspective view of the liquid detection device 10 similar to FIG. 2 in the second embodiment
  • FIG. 9 is an enlarged view of the first connector 19A and the second connector terminal 48 of the notification device 18 in the second embodiment.
  • the first connector terminal 41 of the first connector 19A has a male snap shape having a convex cylindrical engagement portion, and the notification device 18 is snap-engaged with the first connector terminal 41. It has the 2nd connector terminal 48 which has the female snap shape by which the engagement hole was defined in the center part. Further, on the outer surface of the first connector terminal 41, a gripping portion 65 made of a substantially circular non-woven fiber sheet or plastic sheet is formed.
  • the protruding engaging portion 68 includes a positive electrode portion 71 connected to a lead wire 70 extending from the positive electrode plate 23 of the water battery 21.
  • an insulating portion 73 formed of an insulating member such as plastic that extends concentrically in the circumferential direction is disposed along the base end edge of the engaging portion 68.
  • a negative electrode portion 75 connected to a lead wire 74 extending concentrically in the circumferential direction of the insulating portion 73 and extending from the negative electrode plate 24 of the water battery 21 is formed outside the outer peripheral edge of the insulating portion 73.
  • the second connector terminal 48 of the notification device 18 is formed with a negative electrode portion 78 connected to the circuit terminal (negative electrode) of the booster circuit via the lead wire 77 at the opening edge of the engagement hole 76 at the center.
  • an insulating portion 79 formed of an insulating member such as plastic is disposed in a portion extending concentrically in the circumferential direction outside the outer peripheral edge of the negative electrode portion 78.
  • a positive electrode portion 81 connected to the circuit terminal (positive electrode) of the booster circuit via the lead wire 80 is formed outside the outer peripheral edge of the insulating portion 79 and extends concentrically in the circumferential direction.
  • the second connector terminal 48 of the notification device 18 has an outer shape slightly larger than that of the first connector 19A, and the first connector terminal 41 is placed in contact with a rib 81a formed on the outer peripheral surface of the positive electrode portion 81. By directly snap-engaging the two connector terminals 48, they can be stably connected to each other with their opposing surfaces in close contact.
  • the first connector terminal 41 and the second connector terminal 48 of the notification device 18 have such a shape and structure, the first connector terminal 41 and the second connector terminal 48 are formed in a plurality of separate bodies in the first embodiment. They can be connected and separated more easily than those. Therefore, the operator can operate with one hand, that is, by holding the holding portion 65 of the first connector 19A, it is possible to operate the attachment and detachment with one touch, and the operability is excellent. .
  • the 1st connector terminal 41 may be a female snap shape
  • the 2nd connector terminal 48 may be a male snap shape engaged with it
  • the 1st and 2nd connector terminal 41 may be sufficient as it.
  • the arrangement of the positive electrode portions 71, 81 and the negative electrode portions 75, 78 may be reversed.
  • FIG. 11 is a cross-sectional view taken along the line XI-XI of FIG. 10
  • FIG. 12 is the first connector 19A and the notification device. It is a figure which shows the state from which the electrode part 82 of 18 2nd connector 19B was cancelled
  • the second connector 19B of the notification device 18 has a first end surface 82a and a second end surface 82b, and has a male fastener-shaped electrode portion 82 having a substantially I-shaped cross section.
  • the first connector 19A has a female fastener shape to which the electrode portion 82 is fitted, and the electrode structure 82 of the second connector 19B and the first connector 19A are engaged with the fastener, thereby the sensor structure 16 and the first connector 19A.
  • the notification device 18 is detachably connected to each other and is electrically connected.
  • the electrode portion 82 is formed integrally with the second connector 19B, or is made of a plastic that is elastically deformable and is molded separately and fixed thereto, and is formed from the second end surface 82b to the first end surface 82a.
  • a thin plate-like positive electrode plate (second electrode) is formed in the narrow portion 82C located between the upper portion 82A of the electrode portion 82 and the lower portion 82B wider than that.
  • Connector terminal) 84a and negative electrode plate (second connector terminal) 84b are attached.
  • the positive electrode plate 84a and the negative electrode plate 84b are connected to lead wires 77 and 80 extending from the sensor structure 16, respectively.
  • a locking button 85 urged by a spring (not shown) interposed therein is formed on the side surface of the upper portion 82A of the electrode portion 82.
  • the first connector 19A is made of a flexible plastic that can be elastically deformed.
  • the first connector 19A communicates with the bottom surface of the central portion of the first connector 19A. Is formed.
  • a thin plate-like positive electrode plate (electrode terminal) 88a and a negative electrode plate 88b (electrode terminal) are attached to the lower end 87 of the bottom surface forming the lower end of the groove 86.
  • a pressing portion 89 is formed on the side surface of the first connector 19A.
  • the first connector 19A When the electrode portion 82 of the second connector 19B is engaged with the first connector 19A, the first connector 19A is pressed toward the first end surface 82a side of the electrode portion 82, and the electrode portion 82 is pressed against the inner peripheral surface of the groove 86. A part of the outer peripheral surface is fitted while sliding. Specifically, a part of the electrode portion 82 is placed so that the upper portion 82A of the electrode portion 82 and the upper portion 86a of the groove 86, and the narrow portion 82C of the electrode portion 82 and the lower portion 86b of the groove 86 are fitted. 1 is inserted into the connector 19A.
  • the electrode portion 82 becomes narrower toward the first end face 82a side, and the open end to which the lead wires 70 and 74 are attached so that the groove 86 of the first connector 19A also corresponds thereto. Since the width gradually decreases toward the side, they are stably held in the fitted state. Further, since the positive and negative electrode plates 84a and 84b of the electrode portion 82 are in sliding contact with the positive and negative electrode plates 88a and 88b of the first connector 19A while being elastically deformed from each other, the electrode plates are in close contact with each other and partially separated. There is nothing.
  • the locking button 85 of the electrode portion 82 is pushed against the bias of the spring by being slidably contacted with the inner peripheral surface of the groove 86 of the first connector 19A at the time of insertion, and the pressing of the first connector 19A. It is released inside the part 89 and locks to it.
  • the electrode structure 82 of the first connector 19A and the electrode portion 82 of the second connector 19B are fastened to each other, so that the sensor structure 16 and the notification device 18 are stably and detachably connected and electrically connected. Connected to.
  • the operator picks the first connector 19 ⁇ / b> A with one hand, presses the pressing portion 89 to release the locking by the locking button 85, and pulls it out, so-called. These engagements can be released by a one-touch operation.
  • the thickness of the engagement portion between the first connector 19A and the electrode portion 82 due to the fastener engagement that is, the thickness dimension of the connector 17 is about 0.5 to 2.0 cm, and is relatively thin. Even if the engaging part of the notification device 18 abuts on the user's body, there is no possibility of giving a sense of incongruity.
  • FIG. 13 to 15 are diagrams showing other examples of use of the liquid detection device according to the present invention.
  • these usage examples are a part of usage examples of the liquid detection device, and are not limited thereto.
  • the sensor structure 16 is disposed on a body fluid treatment pad 91 fixed inside a pants-type wearing article 90 such as an underwear or a disposable diaper.
  • a pants-type wearing article 90 such as an underwear or a disposable diaper.
  • the water battery 21 generates electricity using the excreted urine (feces) as a catalyst, and the notification device 18 is activated by the electromotive force, so that the internal circuit
  • the wearer's excretion can be notified to the outside by the sound generation unit and / or the light emitting unit. Therefore, the wearer can immediately replace the body fluid treatment pad 91 after urination (defecation), and there is a risk that the wearer may feel discomfort due to wearing these worn articles with excrement attached for a long period of time. Absent.
  • the liquid detection device 10 of the present invention it is possible to easily detect the excretion of the wearer, and more easily know the excretion cycle by recording the excretion cycle. Can do.
  • the connection by the connector 17 is released with one touch, and only the sensor structure 16 can be discarded and replaced, so that it can be reused. Compared to this, the cost can be kept low, which is economically superior.
  • a fastening means 93 formed of Velcro (registered trademark) or double-sided tape is provided on the back surface of the notification device 18. Since the notification device can be stably fixed to the outer surface of the worn article by the fastening means 93, the notification device 18 moves to the back of the wearer's body in a lying state, and gives an uncomfortable feeling. There is no risk of moving inside and getting dirty with excrement.
  • the liquid detection device 10 can also be used for pets 94 such as dogs and cats.
  • pets 94 such as dogs and cats.
  • a body fluid treatment article 96 such as a disposable diaper or a body fluid treatment pad is worn.
  • the pet animal 94 has active movement of the lower body, and when it moves in the room with the body fluid treatment article 96 worn, the body fluid treatment article 96 may be detached from the body due to the movement.
  • the body fluid treatment article 96 when the body fluid treatment article 96 is covered with the clothes 97, it cannot be notified to the outside that the excrement has been excreted due to the smell of excrement, and the excrement adheres to the skin of the pet 94 for a long time. It also caused rashes and rashes.
  • the sensor structure 16 is arranged on the inner surface of the body fluid treatment article 96 located inside the clothing to sense the excretion thereof, and is quickly excreted to the outside by the notification device 18. Therefore, the bodily fluid treatment article 96 can be replaced at an early stage, and there is no possibility that such a disadvantage will occur.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Environmental & Geological Engineering (AREA)
  • Nursing (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Battery Mounting, Suspending (AREA)
  • External Artificial Organs (AREA)

Abstract

Provided is a liquid detection device whereby liquid leakage or the like can be reliably detected and reported to the exterior using a simple configuration without the need for power to be supplied from exterior, and whereby work to install and replace constituent members is relatively simple. A connector (17) includes a first connector (19A) having a pair of first connector terminals (41a, 41b) connected to an electrode of a water cell (21), and a second connector (19B) having a pair of second connector terminals (48a, 48b) connected to an electrode of a reporting device (18). The first connector (19A) and the second connector (19B) are detachably linked to each other, and the first connector terminals (41a, 41b) and the second connector terminals (48, 48a, 48b) are electrically connected.

Description

液体検知装置Liquid detector
　本発明は、液体検知装置に関し、特に詳しくは、医療分野における血液や点滴液の漏れ、人や動物の排泄された尿などを素早く感知してそれを外部に報知するための液体検知装置に関する。 The present invention relates to a liquid detection apparatus, and more particularly, to a liquid detection apparatus for quickly detecting leakage of blood or drip liquid in the medical field, urine excreted by a person or animal, and notifying the outside.
　従来、体液などの液体の漏れなどを感知してそれを外部に知らせるための液体検知装置は公知である。例えば、特許文献１には、銅張積層板に回路を形成した回路部品と、回路部品の端部に配置された回路端子とセンサ本体とを含む液体検知装置が開示されている。 Conventionally, a liquid detection device for detecting leakage of a body fluid or the like and notifying the outside of the leakage is known. For example, Patent Document 1 discloses a liquid detection device including a circuit component in which a circuit is formed on a copper clad laminate, a circuit terminal disposed at an end of the circuit component, and a sensor body.
特開２００６－５５５８８号公報JP 2006-55588 A
　特許文献１に開示された液体検知装置では、非通電状態において開回路状態にある回路部品の回路端子間に血液などの液体が流れたときに、閉回路となって通電し、センサ本体が作動して警報を発することによって、外部に点滴針などから液体の漏れが生じたことを外部に認識させることができる。 In the liquid detection device disclosed in Patent Document 1, when a liquid such as blood flows between circuit terminals of a circuit component that is in an open circuit state in a non-energized state, a closed circuit is energized and the sensor body operates. By issuing an alarm, it is possible to make the outside recognize that the liquid has leaked from the drip needle or the like.
　しかし、かかる感知システムでは、回路部品に常に微弱な電圧をかけておく必要があるので電源部が必要であり、また、銅張積層板を着用者の身体に当接させる必要があるので、患者に対して不快感や不安感を与えるおそれがある。また、外部から電源供給をしなければならないので、そのための電気機器、電気設備が必要となる。 However, in such a sensing system, since it is necessary to always apply a weak voltage to the circuit components, a power supply unit is necessary, and the copper clad laminate must be brought into contact with the wearer's body. May cause discomfort and anxiety. In addition, since power must be supplied from the outside, electrical equipment and electrical equipment for that purpose are required.
　本発明の課題は、従来の液体検知装置の改良であって、外部からの電源供給を必要とせず、簡易な構成により確実に液漏れなどを検知して外部に知らせることができるとともに、部材の取り付け、交換作業が比較的に簡易である液体検知装置の提供である。 An object of the present invention is an improvement of a conventional liquid detection device, which does not require external power supply, can detect liquid leakage and the like with a simple configuration, and can notify the outside of the member. An object of the present invention is to provide a liquid detection device that is relatively easy to mount and replace.
　前記課題を解決するために、本発明が対象とするのは、センサ構造体と、コネクタを介して前記センサ構造体と電気的に接続された報知機器とを有する液体検知装置である。 In order to solve the above problems, the present invention is directed to a liquid detection device having a sensor structure and a notification device electrically connected to the sensor structure via a connector.
　本発明が特徴とするところは、前記センサ構造体は、液体を触媒とする水電池を有し、前記コネクタは、前記水電池の電極と接続された１対の第１コネクタ端子を有する第１コネクタと、前記報知機器の電極と接続された１対の第２コネクタ端子を有する第２コネクタとを含み、前記第１コネクタと前記第２コネクタとが、互いに着脱可能に連結され、かつ前記第１コネクタ端子と前記第２コネクタ端子とが電気的に接続されることにある。 The present invention is characterized in that the sensor structure includes a water battery using a liquid as a catalyst, and the connector includes a first pair of first connector terminals connected to electrodes of the water battery. A connector and a second connector having a pair of second connector terminals connected to the electrodes of the notification device, wherein the first connector and the second connector are detachably connected to each other, and the first connector One connector terminal and the second connector terminal are electrically connected.
　本発明における実施形態の一つとしては、前記第１コネクタ端子と、前記第２コネクタ端子とが、スナップ係合によって連結される。 As one embodiment of the present invention, the first connector terminal and the second connector terminal are connected by snap engagement.
　本発明における他の実施態様の一つとしては、前記第１コネクタ端子は、凸円筒状の係合部を有する雄スナップ形状を有しており、前記係合部には正極部位が形成されており、前記正極部位の周方向外方においてそれと同心円状に延びる絶縁部位と負極部位とが形成されており、前記第２コネクタ端子は、その中央部に係合孔を有する雌スナップ形状を有し、前記係合孔の開口縁部に沿って負極部位が形成されており、前記負極部位の周方向外方においてそれと同心円状に延びる絶縁部位と正極部位とが形成されている。 As another embodiment of the present invention, the first connector terminal has a male snap shape having a convex cylindrical engagement portion, and a positive electrode portion is formed on the engagement portion. An insulating part and a negative electrode part extending concentrically with the positive electrode part in the circumferential direction are formed, and the second connector terminal has a female snap shape having an engagement hole at the center thereof. A negative electrode part is formed along the opening edge of the engagement hole, and an insulating part and a positive electrode part extending concentrically with the negative electrode part in the circumferential direction are formed.
　本発明におけるさらに他の実施態様の一つとしては、前記第２コネクタは、前記第２コネクタ端子が取り付けられた雄ファスナ形状の電極部を含み、前記第１コネクタは、前記電極部の一部が嵌挿される溝を有する雌ファスナ形状であって、前記第１コネクタと前記第２コネクタの電極部とがファスナ係合によって互いに連結されている。 In still another embodiment of the present invention, the second connector includes a male fastener-shaped electrode portion to which the second connector terminal is attached, and the first connector is a part of the electrode portion. Is a female fastener shape having a groove into which the first connector and the electrode portion of the second connector are connected to each other by fastener engagement.
　本発明におけるさらに他の実施態様の一つとしては、前記第２コネクタの電極部は、断面略Ｉ字状を有し、上方部と、下方部と、それらの間に位置する幅狭部位とを含み、前記幅狭部の両側に薄板状の前記第２コネクタ端子が取り付けられており、前記第１コネクタの前記溝の下部を形成する両端部には薄板状の前記第１コネクタ端子が取り付けられており、前記電極部の前記上方部及び前記幅狭部とを前記第１コネクタの前記溝に嵌挿させることによって、前記第１コネクタ端子と前記第２コネクタ端子とが密接する。 As still another embodiment of the present invention, the electrode portion of the second connector has a substantially I-shaped cross section, and includes an upper portion, a lower portion, and a narrow portion positioned therebetween. And the thin plate-like second connector terminals are attached to both sides of the narrow portion, and the thin plate-like first connector terminals are attached to both ends forming the lower portion of the groove of the first connector. The first connector terminal and the second connector terminal are brought into close contact with each other by fitting the upper part and the narrow part of the electrode part into the groove of the first connector.
　本発明におけるさらに他の実施態様の一つとしては、前記報知機器は、その内部に前記水電池による電源電圧を昇圧させるための昇圧回路部が設けられている。 As still another embodiment of the present invention, the notification device is provided with a booster circuit section for boosting the power supply voltage of the water battery.
　本発明におけるさらに他の実施態様の一つとしては、前記昇圧回路部は、少なくとも昇圧発振用のトランスとトランジスタを含み、前記トランスの２次側に前記トランジスタのベース端子が接続され、正帰還発振による昇圧パルスが発生する。 In still another embodiment of the present invention, the booster circuit unit includes at least a transformer for boost oscillation and a transistor, and a base terminal of the transistor is connected to a secondary side of the transformer, so that positive feedback oscillation is performed. A boost pulse is generated.
　本発明におけるさらに他の実施態様の一つとしては、前記水電池は、１枚の正極電極板と、２枚の負極電極板と、前記正極電極板及び前記負極電極板との間に介在し、それらと直接的または絶縁部材を介して間接的に当接する正極活物質とを有し、前記正極電極板と一方の前記負極電極板との離間寸法が、前記正極電極板と他方の前記負極電極板との離間寸法とほぼ等しくなっている。 In still another embodiment of the present invention, the water battery is interposed between one positive electrode plate, two negative electrode plates, and the positive electrode plate and the negative electrode plate. A positive electrode active material that is in direct contact with them or indirectly through an insulating member, and a separation dimension between the positive electrode plate and one negative electrode plate is such that the positive electrode plate and the other negative electrode The distance from the electrode plate is almost the same.
　本発明におけるさらに他の実施態様の一つとしては、前記報知機器の外面には、着用物品に止着するための止着手段が設けられている。 As yet another embodiment of the present invention, a fastening means for fastening to a worn article is provided on the outer surface of the notification device.
　本発明に係る液体検知装置によれば、水電池の電極と接続された第１コネクタと報知機器の電極と接続された第２コネクタとが着脱可能に連結され、かつ、それらの第１コネクタ端子と第２コネクタ端子とが電気的に接続されるので、センサ構造体の取り付け、取り外しが簡易であって、操作性に優れている。また、かかる構成を有することによって、使用後において、センサ構造体のみを交換、廃棄し、報知機器については再利用が可能である。したがって、使用頻度の高い排尿の検知などに用いた場合であっても、コストを低く抑えることができ経済的である。 According to the liquid detection device of the present invention, the first connector connected to the electrode of the water battery and the second connector connected to the electrode of the alarm device are detachably connected, and the first connector terminals thereof. And the second connector terminal are electrically connected to each other, so that the sensor structure can be easily attached and detached, and has excellent operability. Further, by having such a configuration, after use, only the sensor structure can be replaced and discarded, and the notification device can be reused. Therefore, even when it is used for detecting urination frequently used, the cost can be kept low and it is economical.
本発明の第１実施形態における液体検知装置の使用状態を示す図。The figure which shows the use condition of the liquid detection apparatus in 1st Embodiment of this invention. センサ構造体と報知機器とが分離された状態における、液体検知装置の斜視図。The perspective view of a liquid detection apparatus in the state where the sensor structure and the alerting | reporting apparatus were isolate | separated. 液体検知装置の分解斜視図。The disassembled perspective view of a liquid detection apparatus. 図２のＩＶ－ＩＶ線断面図。FIG. 4 is a sectional view taken along line IV-IV in FIG. 2. 水電池の斜視図。The perspective view of a water battery. 水電池の分解斜視図。The exploded perspective view of a water battery. 報知機器の内部構造を示す図。The figure which shows the internal structure of alerting | reporting apparatus. 第２実施形態における図２と同様の液体検知装置の斜視図。The perspective view of the liquid detection apparatus similar to FIG. 2 in 2nd Embodiment. 第２実施形態における第１コネクタ及び第２コネクタ端子の拡大図。The enlarged view of the 1st connector and 2nd connector terminal in 2nd Embodiment. 第３実施形態における、第１コネクタと第２コネクタとが連結された状態の液体検知装置の斜視図。The perspective view of the liquid detection apparatus of the state in which the 1st connector and 2nd connector in 3rd Embodiment were connected. 図１０のＸＩ－ＸＩ線断面図。XI-XI sectional view taken on the line of FIG. 第３実施形態における第１コネクタと第２コネクタの電極部との拡大図。The enlarged view of the electrode part of the 1st connector and 2nd connector in 3rd Embodiment. 液体検知装置の他の使用例を示す図。The figure which shows the other usage example of a liquid detection apparatus. 体液処理用パッドに対する液体検知装置の取り付け状態を示す図。The figure which shows the attachment state of the liquid detection apparatus with respect to the pad for body fluid processing. 液体検知装置の他の使用例を示す図。The figure which shows the other usage example of a liquid detection apparatus.
　図１～３に示すとおり、液体検知装置１０は、点滴袋や採血袋に接続された輸液用のチューブ１１と、チューブ１１に接続されて患者の手１２の血管に挿入された翼状針（注射針）１４と、患者の手１２に粘着テープ１５を介して固定されたセンサ構造体１６と、センサ構造体１６とコネクタ１７を介して接続された報知機器１８とを含む。コネクタ１７は、センサ構造体１６に接続された第１コネクタ１９Ａ
と、報知機器１８の電極が取り付けられた第２コネクタ１９Ｂとから構成されている。 As shown in FIGS. 1 to 3, the liquid detection device 10 includes an infusion tube 11 connected to an infusion bag or a blood collection bag, and a winged needle (injection) connected to the tube 11 and inserted into a blood vessel of a patient's hand 12. Needle) 14, a sensor structure 16 fixed to the patient's hand 12 via an adhesive tape 15, and a notification device 18 connected to the sensor structure 16 via a connector 17. The connector 17 is a first connector 19A connected to the sensor structure 16.
And a second connector 19B to which an electrode of the notification device 18 is attached.
　センサ構造体１６は、患者の血管に挿入された翼状針１４の先端部１４ａ上に配置されており、粘着テープ１５によって患者の手１２の甲に固定されている。なお、本発明の液体検知装置１０が対象とする「液体」とは、医療分野における血液、点滴液、脳脊髄液、腹水、胸水などの各種輸液されるもの、介護分野などにおける人体から排泄される尿や便、さらには、愛玩動物の排泄する尿や便などを意味するものである。 The sensor structure 16 is disposed on the distal end portion 14a of the winged needle 14 inserted into the patient's blood vessel, and is fixed to the back of the patient's hand 12 by the adhesive tape 15. The “liquid” targeted by the liquid detection device 10 of the present invention refers to various infusions such as blood, drip, cerebrospinal fluid, ascites, pleural effusion in the medical field, and excreted from the human body in the nursing field. It means urine and stool that are excreted by pet animals.
　センサ構造体１６は、パッド形状を有しており、透液性のシートで、例えば、繊維不織布とコットンとレーヨンの混繊およびオプションとしてウレタン等の弾性反発性を有する連続発泡部材を被包して形成された吸収部材２０と、吸収部材２０の内部に位置する水電池２１とを有する。吸収部材２０は、水電池２１をそれぞれ上方と下方とから覆う上方部２０ａ及び下方部２０ｂとから形成されており、その外周縁１６ａが接着剤またはヒートシール加工によってシールされている。水電池２１全体が吸収部材２０で被包されていることによって、水電池２１が直接的に肌に触れることはなく、センサ構造体１６の肌触りが良好となる。ただし、本発明においては、吸収部材２０は必須の構成ではなく、センサ構造体１６は水電池のみから構成されていてもよい。また、吸収部材２０がその一部にウレタン等の弾性反発部材を含む場合には、クッション性が向上するので、センサ構造体１６に体圧などの圧力が加えられても水電池２１が変形することはなく、また、着用者に違和感を与えるおそれはない。 The sensor structure 16 has a pad shape and is a liquid-permeable sheet, for example, encapsulating a continuous foamed member having elastic resilience such as a fiber non-woven fabric, cotton and rayon, and optionally urethane. And the water battery 21 located inside the absorption member 20. The absorbing member 20 is formed of an upper portion 20a and a lower portion 20b that cover the water battery 21 from above and below, respectively, and an outer peripheral edge 16a thereof is sealed by an adhesive or heat seal processing. Since the entire water battery 21 is encapsulated by the absorbing member 20, the water battery 21 does not directly touch the skin, and the sensor structure 16 feels good. However, in this invention, the absorption member 20 is not an essential structure, and the sensor structure 16 may be comprised only from the water battery. Further, when the absorbing member 20 includes an elastic repulsion member such as urethane in part, the cushioning property is improved, so that the water battery 21 is deformed even when a pressure such as body pressure is applied to the sensor structure 16. There is no risk of discomfort to the wearer.
　センサ構造体１６は、翼状針１４の先端部１４ａと対向する位置に配置されているので、治療中において、翼状針１４の先端部１４ａが挿入されて僅かに隆起した血管部位から血液や点滴液などの液体が漏れ出た場合には、吸収部材２０の一部又は全体に浸透する。吸収部材２０に浸透した一定量の液体が水電池２１に触れることによって、それを触媒として水電池２１がその内部において電気化学反応を生じて起電力が発生する。発生した起電力によってコネクタ１７を介して報知機器１８に電流が流れ、報知機器１８が作動してブザー音を生じる。このように、センサ構造体１６が液体漏れを検知してそれを報知機器１８が外部に知らせるので、液体漏れによる医療事故などを未然に防止することができる。 Since the sensor structure 16 is disposed at a position facing the distal end portion 14a of the winged needle 14, blood or drip solution from a blood vessel site slightly raised by insertion of the distal end portion 14a of the winged needle 14 during treatment. Or the like leaks into a part or the whole of the absorbing member 20. When a certain amount of liquid that has penetrated into the absorbing member 20 touches the water battery 21, the water battery 21 causes an electrochemical reaction in the water battery 21 to generate an electromotive force. The generated electromotive force causes a current to flow through the notification device 18 via the connector 17, and the notification device 18 is activated to generate a buzzer sound. Thus, since the sensor structure 16 detects a liquid leak and the notification device 18 notifies the outside of the liquid leak, a medical accident or the like due to the liquid leak can be prevented in advance.
　また、センサ構造体１６は、液体漏れなどを検知するセンサとしての役割を有するとともに、報知機器１８を作動させるための電源供給源としての役割をも有するものであって、従来の集積回路や半導体素子などを含む精密機器による自動液体検知装置（システム）などに比べて、きわめて簡易かつ安価であり、また、外部からの電源供給を必要としないので、感電や漏電などを生じるおそれもなく、安全である。 The sensor structure 16 has a role as a sensor for detecting liquid leakage and the like, and also has a role as a power supply source for operating the notification device 18. Compared to automatic liquid detection devices (systems) using precision instruments including elements, etc., it is extremely simple and inexpensive, and it does not require external power supply, so there is no risk of electric shock or leakage, and it is safe. It is.
　図４～６に示すとおり、水電池２１は、上面２２Ａ及び下面２２Ｂを有し、１枚の薄板状の正極電極板２３と、正極電極板２３とほぼ同形同大の薄板状の２枚の負極電極板２４と、透液性を有する繊維不織布又は透液性プラスチックフィルムなどから形成されたラップシート２５の袋状部２５ａの内部に充填された正極活物質２６とを含む。 As shown in FIGS. 4 to 6, the water battery 21 has an upper surface 22A and a lower surface 22B, one thin plate-like positive electrode plate 23, and two thin plate-like plates that are substantially the same shape and size as the positive electrode plate 23. Negative electrode plate 24 and a positive electrode active material 26 filled in a bag-like portion 25a of a wrap sheet 25 formed of a liquid non-woven fabric or a liquid permeable plastic film.
　正極電極板２３は、比較的に導電性が強くイオン化傾向の小さい、電気化学的に比較的安定な、例えば、ニッケル、銅、銀等の金属またはこれらの金属を主体とする合金から作られる。負極電極板２４は、イオン化および／または酸化傾向が比較的に大きな電極活物質、例えば、金属マグネシウム、アルミニウム、亜鉛などまたはそれらを少なくとも２種以上含む合金から作られる。 The positive electrode plate 23 is made of a metal having a relatively high conductivity and a small ionization tendency, which is electrochemically stable, for example, a metal such as nickel, copper, silver, or an alloy mainly composed of these metals. The negative electrode plate 24 is made of an electrode active material having a relatively large tendency to ionize and / or oxidize, such as metal magnesium, aluminum, zinc, or an alloy containing at least two of them.
　正極活物質２６は、ラップシート２５の袋状部２５ａの内面にスプレー状に塗布された接着剤を介して固定された粉末状であって、比較的に酸化力が強い酸化物質、例えば、活性炭、二酸化マンガン、酸化鉄、結晶性の酸化銀などの混合物から作られており、混合物の種類や混合比率は、所要の酸化力に応じて自由に設定することができる。なお、水電池２１の厚さを小さくするために、活性炭などの各種粉末をシート状に成形して、袋状部２５ａの内面に接着剤を介して固定してもよい。 The positive electrode active material 26 is in the form of a powder that is fixed to the inner surface of the bag-like portion 25a of the wrap sheet 25 via an adhesive applied in the form of a spray and has a relatively strong oxidizing power, such as activated carbon. , Manganese dioxide, iron oxide, crystalline silver oxide and the like, and the type and mixing ratio of the mixture can be freely set according to the required oxidizing power. In order to reduce the thickness of the water battery 21, various powders such as activated carbon may be formed into a sheet shape and fixed to the inner surface of the bag-like portion 25a with an adhesive.
　水電池２１の組立状態において、正極電極板２３は、正極活物質２６の内部に挿入され、各負極電極板２４はラップシート２５の袋状部２５ａの上下面２２Ａ，２２Ｂと当接しており、袋状部２５ａを上下から挟みこむように配置されている。また、ラップシート２５の袋状部２５ａと連続して延びる延出部２５ｂの一部は、その幅方向の長さ寸法を二分する折曲ライン３０に沿って折り返されており、その内側部位３１が袋状部２５ａの上面に配置された負極電極板２４に当接され、また、外側部位３２が袋状部２５ａの下面に配置された負極電極板２４に当接している。このようにラップシート２５の延出部２５ｂによって各構成部材が積層された状態で被包されて水電池２１が形成されている。 In the assembled state of the water battery 21, the positive electrode plate 23 is inserted into the positive electrode active material 26, and each negative electrode plate 24 is in contact with the upper and lower surfaces 22A, 22B of the bag-like portion 25a of the wrap sheet 25, It arrange | positions so that the bag-shaped part 25a may be inserted | pinched from upper and lower sides. A part of the extending portion 25b extending continuously from the bag-like portion 25a of the wrap sheet 25 is folded along a folding line 30 that bisects the length in the width direction, and the inner portion 31 thereof. Is in contact with the negative electrode plate 24 disposed on the upper surface of the bag-shaped portion 25a, and the outer portion 32 is in contact with the negative electrode plate 24 disposed on the lower surface of the bag-shaped portion 25a. Thus, the water battery 21 is formed by being encapsulated in a state where the respective constituent members are laminated by the extending portion 25 b of the wrap sheet 25.
　また、水電池２１は、互いに重なり合うラップシート２５の対向面どうし、およびラップシート２５と負極電極板２４とが間欠的に塗布された接着剤によって互いに接合されているとともに、その全体を挟み込むようにその両側部３５ａ，３５ｂが折り曲げられた硬質プラスチック製又は金属製の固定部材３５によって積層状態が維持されている。なお、図示していないが、固定部材３５の一方の側部３５ａをラップシート２５の一部に形成された透孔に挿入した状態で折曲することによって、水電池２１に外部から衝撃が与えられても、固定部材３５が不用意に水電池２１から外れることを防止することもできる。 Further, the water battery 21 is bonded to each other by the adhesive applied to the wrap sheet 25 and the negative electrode plate 24 between the opposing surfaces of the lap sheet 25 that overlap each other, and sandwiches the entire battery cell 21. The laminated state is maintained by a fixing member 35 made of hard plastic or metal whose both side portions 35a and 35b are bent. Although not shown, an impact is applied to the water battery 21 from the outside by bending one side portion 35a of the fixing member 35 inserted into a through hole formed in a part of the wrap sheet 25. Even if the fixing member 35 is removed, it can be prevented that the fixing member 35 is inadvertently detached from the water battery 21.
　図４に示すとおり、水電池２１は、その内部構造において、上下面２２Ａ，２２Ｂからその中心に向かって、負極電極板２４と正極電極板２３とが交互に配置されていることから、１枚の負極電極板２４と１枚の正極電極板２３とによって形成される場合に比して電気化学的面積が広がり、より電気を発生させ易くできるといえる。すなわち、水電池２１の上面２２Ａ側に位置する負極電極板２４と正極電極板２３との離間距離と下面２２Ｂ側に位置する負極電極板２４と正極電極板２３との離間距離がほぼ等しく、それらの電極板２３，２４間に正極活物質２６が充填されていることから、水電池２１の厚さ方向において均等の起電力を発生させることができる。そのため、全ての正極活物質２６を無駄なくその発電作用に利用することができる。 As shown in FIG. 4, the water battery 21 has one internal battery structure in which the negative electrode plates 24 and the positive electrode plates 23 are alternately arranged from the upper and lower surfaces 22A and 22B toward the center. Compared to the case where the negative electrode plate 24 and the single positive electrode plate 23 are used, the electrochemical area is increased, and it can be said that electricity can be generated more easily. That is, the separation distance between the negative electrode plate 24 and the positive electrode plate 23 located on the upper surface 22A side of the water battery 21 and the separation distance between the negative electrode plate 24 and the positive electrode plate 23 located on the lower surface 22B side are substantially equal. Since the positive electrode active material 26 is filled between the electrode plates 23 and 24, an equal electromotive force can be generated in the thickness direction of the water battery 21. Therefore, all the positive electrode active materials 26 can be utilized for the power generation action without waste.
　再び、図２～３を参照すれば、コネクタ１７の第１コネクタ１９Ａは、略三角形状を有し、水電池２１から延出するコード４０内に収容された一対のリード線にそれぞれ連結された第１コネクタ端子４１ａ，４１ｂと、それらを上下方から被包する一対の保護シート４３とを含む。一方の保護シート４３には、一対の略円形状の透孔４５が形成されている。第１コネクタ端子（正極）４１ａは、透孔４５から突出する凸円筒状の係合部を有する雄スナップ形状を有し、第１コネクタ端子（負極）４１ｂはその中央に係合孔を有する雌スナップ形状を有しており、それらはそれぞれ、保護シート４３の透孔４５から露出している。 Referring again to FIGS. 2 to 3, the first connector 19A of the connector 17 has a substantially triangular shape and is connected to a pair of lead wires housed in a cord 40 extending from the water battery 21, respectively. 1st connector terminal 41a, 41b and a pair of protective sheet 43 which encloses them from the upper and lower sides are included. One protective sheet 43 is formed with a pair of substantially circular through holes 45. The first connector terminal (positive electrode) 41a has a male snap shape having a convex cylindrical engagement portion protruding from the through hole 45, and the first connector terminal (negative electrode) 41b is a female having an engagement hole at the center thereof. Each has a snap shape and is exposed from the through hole 45 of the protective sheet 43.
　報知機器１８は、開口端５０ａを有する布製またはプラスチック製の第２コネクタ１９Ｂと、その内部に収容された略矩形状のケース５１とを有する。ケース５１は、複数の電気素子が配置された本体５１ａと、本体５１ａの外周縁に沿って嵌合する蓋体５１ｂとを有する。本体５１ａと蓋体５１ｂとの一部には切欠が形成されており、これらの切欠によって形成された開口部からスイッチ５３のレバー５３ａが突出している。第２コネクタ１９Ｂには、内部に配置されたブザーのブザー音を発生させるための、ケース５１の蓋体５１ｂの透孔と連通された開孔５４が形成されている。 The notification device 18 includes a cloth or plastic second connector 19B having an open end 50a, and a substantially rectangular case 51 accommodated therein. The case 51 includes a main body 51a on which a plurality of electric elements are arranged, and a lid body 51b that fits along the outer peripheral edge of the main body 51a. A cutout is formed in a part of the main body 51a and the lid 51b, and a lever 53a of the switch 53 protrudes from an opening formed by the cutout. The second connector 19B is formed with an opening 54 communicating with the through-hole of the lid 51b of the case 51 for generating a buzzer sound of a buzzer arranged inside.
　第２コネクタ１９Ｂには、開孔５４の開口端５０ａ側において一対の円形状の開孔が形成されており、その内面側における開口縁部に報知機器１８の内部回路とリード線４７を介して連結された第２コネクタ端子（正極）４８ａと第２コネクタ端子（負極）４８ｂが固定されている。第２コネクタ端子４８ａは開孔から突出する凸円筒状の係合部を有する雄スナップ形状を有し、第２コネクタ端子４８ｂはその中央に係合孔が画成された雌スナップ形状を有しており、それらは、それぞれ第２コネクタ１９Ｂの開孔から露出している。 In the second connector 19B, a pair of circular openings are formed on the opening end 50a side of the opening 54, and the opening edge on the inner surface side thereof is connected to the internal circuit of the alarm device 18 and the lead wire 47. The connected second connector terminal (positive electrode) 48a and second connector terminal (negative electrode) 48b are fixed. The second connector terminal 48a has a male snap shape having a convex cylindrical engagement portion protruding from the opening, and the second connector terminal 48b has a female snap shape having an engagement hole defined at the center thereof. They are respectively exposed from the opening of the second connector 19B.
　かかる形状を有する第１コネクタ端子４１ａ，４１ｂと第２コネクタ端子４８ａ，４８ｂとは、それぞれ互いに対となる、第１コネクタ端子（正極）４１ａと第２コネクタ端子（負極）４８ｂ、第１コネクタ端子４１ｂ（負極）と第２コネクタ端子（正極）４８ａとをそれぞれスナップ係合させることによって、水電池２１が報知機器１８と電気的に接続されて、液体検知装置１０は通電された状態となる。このように、スナップ係合による簡易な操作によって、センサ構造体１６と報知機器１８とを確実に連結することができるので、それらを他の固定部材を介して連結する場合やジャック、アダプタ等のコネクタ手段によって連結する場合に比して操作性に優れている。また、液体検知装置１０の使用後には、かかるスナップ係合を解除して、センサ構造体１６を報知機器１８から取り外し、それのみを交換、廃棄することによって新たに使用をすることができるので、速やかに交換作業をすることができ、また、コストを最小限に抑えることができるので経済的である。 The first connector terminals 41a and 41b and the second connector terminals 48a and 48b having such a shape are respectively paired with each other, a first connector terminal (positive electrode) 41a, a second connector terminal (negative electrode) 48b, and a first connector terminal. 41b (negative electrode) and second connector terminal (positive electrode) 48a are snap-engaged, whereby the water battery 21 is electrically connected to the notification device 18 and the liquid detection device 10 is energized. In this way, the sensor structure 16 and the notification device 18 can be reliably connected by a simple operation by snap engagement, so that when connecting them via other fixing members, a jack, an adapter, etc. The operability is excellent as compared with the case of connecting by the connector means. In addition, after the use of the liquid detection device 10, the snap engagement can be released, the sensor structure 16 can be removed from the notification device 18, and only it can be replaced and discarded, so that it can be newly used. Since the replacement work can be performed quickly and the cost can be minimized, it is economical.
　図７に示すとおり、ケース５１の本体５１ａの内部には、プリント基板５５が配置されており、プリント基板５５は、水電池２１から供給される電圧を必要な電圧まで昇圧させることのできる昇圧回路部５６と、ブザーから構成された発音部５７とを有する。 As shown in FIG. 7, a printed circuit board 55 is disposed inside the main body 51 a of the case 51, and the printed circuit board 55 can boost the voltage supplied from the water battery 21 to a necessary voltage. A unit 56 and a sound generation unit 57 composed of a buzzer.
　昇圧回路部５６は、水電池２１による直流電源のコネクタ端子４１ａ（正極）と接続する昇圧発振用のトランス（フライバックトランス）６０と、発振ドライブ用としてのＭＯＳＦＥＴ又はバイポーラのＮＰＮ型のトランジスタ６１と、トランス６０とトランジスタ６１との間において並列に接続されたベースバイアス用の抵抗素子６２とコンデンサ６３と、昇圧された電圧を整流するためのダイオード６５とを有する。 The step-up circuit unit 56 includes a step-up oscillation transformer (flyback transformer) 60 connected to a connector terminal 41a (positive electrode) of a DC power source by the water battery 21, and a MOSFET or bipolar NPN transistor 61 for oscillation drive. , A base bias resistor 62 and a capacitor 63 connected in parallel between the transformer 60 and the transistor 61, and a diode 65 for rectifying the boosted voltage.
　トランス６０は、１次側巻き線と２次側巻き線（図示せず）とを有し、１次巻き線は、鉄心（トロイダルコア）に線径約０．１５ｍｍのエナメル線を右巻きに５０回（インダクタンス：約２２～３３μＨ）、２次側巻き線は、鉄心に線径約０．２ｍｍのエナメル線を左巻きに２０回巻き付けることによってそれぞれ形成されており、１次巻き線と２次巻き線との巻数比は、２．５である。１次及び２次巻き線を形成する抵抗線としては、通常のコイルとして用いられるエナメル線やアルミニウム線等のほかに、電気抵抗の比較的に大きな、例えば、鉄、銅ニッケル合金、銅マンガン合金、鉄ニッケル合金、ステンレス線等の線材を用いることができる。 The transformer 60 has a primary winding and a secondary winding (not shown), and the primary winding is a right-handed enamel wire having a wire diameter of about 0.15 mm around an iron core (toroidal core). 50 turns (inductance: about 22 to 33 μH), the secondary winding is formed by winding an enameled wire with a wire diameter of about 0.2 mm around the iron core 20 times in a left turn. The primary winding and the secondary winding The turn ratio with the winding is 2.5. As resistance wires for forming primary and secondary windings, in addition to enamel wires and aluminum wires used as ordinary coils, the electrical resistance is relatively large. For example, iron, copper nickel alloy, copper manganese alloy Wire rods such as iron nickel alloy and stainless steel wire can be used.
　トランス６０の２次側巻き線には、約３．３ＫΩの抵抗素子６２と約０．１μＦのコンデンサ６３とが並列に接続されており、抵抗素子６２とコンデンサ６３とはトランジスタ６１のベース端子に接続されている。また、トランジスタ６１のコレクタ端子は、トランス６０の１次側巻き線に接続されており、エミッタ端子は、直流電源のマイナス端子に接続されている。 The secondary winding of the transformer 60 is connected with a resistance element 62 of about 3.3 KΩ and a capacitor 63 of about 0.1 μF in parallel. The resistance element 62 and the capacitor 63 are connected to the base terminal of the transistor 61. It is connected. The collector terminal of the transistor 61 is connected to the primary winding of the transformer 60, and the emitter terminal is connected to the negative terminal of the DC power supply.
　昇圧回路部５６の昇圧動作について簡単に説明すると、まず、スイッチ５３をＯＮにすると、直流電源よりトランス６０の２次側巻き線、抵抗素子６２を介してトランジスタ６１のベース端子にベースバイアス電圧が印加され、ベース―エミッタ間にベース電流が流れる。ベースバイアス電圧が印加されることによってトランジスタ６１はＯＮになり、トランス６０の１次側巻き線にも電流が流れる。このときに発生する突入電流により、１次側巻き線に磁界の変化が生じて２次側巻き線に誘起電力となるパルスが発生する。発生したパルスによって、入力電圧は逆向きに発生し、２次側巻き線には、１次側巻き線と２次側巻き線との巻数比に応じた、１次側巻き線に印加される入力電圧の数倍から十数倍の誘起電圧が発生する。誘起電圧によるパルスによってベースバイアス電圧が下がり、ベース電流は減少する。ベース電流が減少することによって、コレクタ電流は減少し、コレクタ電圧が増加する。増幅されたコレクタ電圧がローレベルになったときに、２次側巻き線には再び誘起電力が発生し、これらの動作が繰り返し行われることによって昇圧パルスの正帰還発振状態が維持される。 The boosting operation of the boosting circuit unit 56 will be briefly described. First, when the switch 53 is turned on, the base bias voltage is applied to the base terminal of the transistor 61 from the DC power source through the secondary winding of the transformer 60 and the resistance element 62. When applied, a base current flows between the base and the emitter. By applying the base bias voltage, the transistor 61 is turned on, and a current also flows through the primary winding of the transformer 60. Due to the inrush current generated at this time, a change in the magnetic field occurs in the primary winding, and a pulse that becomes induced power is generated in the secondary winding. Due to the generated pulse, the input voltage is generated in the reverse direction, and the secondary winding is applied to the primary winding according to the turns ratio of the primary winding to the secondary winding. An induced voltage that is several to several tens of times the input voltage is generated. The base bias voltage decreases and the base current decreases due to the pulse caused by the induced voltage. As the base current decreases, the collector current decreases and the collector voltage increases. When the amplified collector voltage becomes low level, induced power is generated again in the secondary winding, and the positive feedback oscillation state of the boost pulse is maintained by repeating these operations.
　かかる構成を有する報知機器１８において、レバー５３ａをスライドさせてスイッチ５３をＯＮにすることによって、水電池２１と報知機器１８とは通電した状態となり、水電池２１の電極間に液体が供給されて起電力が発生した場合には、昇圧回路部５６においてその起電力が所要の大きさまで昇圧され、発音部５７のブザーが作動してブザー音を発生させる。かかる昇圧回路では、必要最低限度の電気・電子素子のみを使用しており、その駆動のための消費電力を低く抑えることができるとともに、複数の電気・電子素子を使用する昇圧回路に比べて、簡易かつ安価な構成を有し、よりコスト的に優れているといえる。また、回路自体が比較的にコンパクトな大きさを有するので、本実施形態の報知機器１８のような小型の機器の利用に適している。 In the notification device 18 having such a configuration, the water battery 21 and the notification device 18 are energized by sliding the lever 53a and turning on the switch 53, and liquid is supplied between the electrodes of the water battery 21. When an electromotive force is generated, the boosting circuit unit 56 boosts the electromotive force to a required magnitude, and the buzzer of the sound generation unit 57 is activated to generate a buzzer sound. In such a booster circuit, only the minimum necessary electric / electronic elements are used, and the power consumption for driving thereof can be kept low, and compared to a booster circuit using a plurality of electric / electronic elements, It can be said that it has a simple and inexpensive configuration and is more cost effective. Further, since the circuit itself has a relatively compact size, it is suitable for use of a small device such as the notification device 18 of the present embodiment.
　また、本発明に係る水電池２１の電気化学反応によって発生する起電力は約１．５Ｖであるところ、かかる大きさの起電力であれば、昇圧回路を使用しなくても発音部５７のブザー音を作動することができるが（約０．０４５Ｗの電力で２０時間使用可能）、報知機器１８が発音部５７のみならず複数の発光ダイオードから構成された発光部を有する場合や、モーターを使用して振動させるバイブレータ機能を有する場合には、それらを起動するために、約５．０Ｖ以上の起電力を必要とするので、かかる場合には、前記の昇圧回路５６を使用する必要がある。 In addition, the electromotive force generated by the electrochemical reaction of the water battery 21 according to the present invention is about 1.5 V. If the electromotive force is such a magnitude, the buzzer of the sound generating unit 57 can be used without using a booster circuit. Sound can be activated (can be used for 20 hours with about 0.045 W power), but the alarm device 18 has not only the sound generating unit 57 but also a light emitting unit composed of a plurality of light emitting diodes, or a motor is used. In the case of having a vibrator function to vibrate, an electromotive force of about 5.0 V or more is required to activate them. In such a case, it is necessary to use the booster circuit 56 described above.
＜第２実施形態＞
　図８は、第２実施形態における図２と同様の液体検知装置１０の斜視図、図９は、第２実施形態における第１コネクタ１９Ａ及び報知機器１８の第２コネクタ端子４８の拡大図である。本実施形態では、第１コネクタ１９Ａの第１コネクタ端子４１は凸円筒状の係合部を有する雄スナップ形状であって、報知機器１８は、第１コネクタ端子４１にスナップ係合される、その中央部に係合孔が画成された雌スナップ形状を有する第２コネクタ端子４８を有する。また、第１コネクタ端子４１の外面には、略円形の繊維不織布シート又はプラスチックシート製の摘持部６５が形成されている。 Second Embodiment
FIG. 8 is a perspective view of the liquid detection device 10 similar to FIG. 2 in the second embodiment, and FIG. 9 is an enlarged view of the first connector 19A and the second connector terminal 48 of the notification device 18 in the second embodiment. . In the present embodiment, the first connector terminal 41 of the first connector 19A has a male snap shape having a convex cylindrical engagement portion, and the notification device 18 is snap-engaged with the first connector terminal 41. It has the 2nd connector terminal 48 which has the female snap shape by which the engagement hole was defined in the center part. Further, on the outer surface of the first connector terminal 41, a gripping portion 65 made of a substantially circular non-woven fiber sheet or plastic sheet is formed.
　図９に示すとおり、本実施形態において、第１コネクタ端子４１においては、その突出した係合部６８が水電池２１の正極電極板２３から延出するリード線７０と接続された正極部位７１を形成する。また、係合部６８の基端縁沿いには、その周方向へ同心円状に延びるプラスチック等の絶縁部材から形成された絶縁部位７３が配置される。絶縁部位７３の外周縁の外方には、絶縁部位７３の周方向へ同心円状に延びる、水電池２１の負極電極板２４から延出するリード線７４と接続された負極部位７５を形成する。 As shown in FIG. 9, in the present embodiment, in the first connector terminal 41, the protruding engaging portion 68 includes a positive electrode portion 71 connected to a lead wire 70 extending from the positive electrode plate 23 of the water battery 21. Form. Further, an insulating portion 73 formed of an insulating member such as plastic that extends concentrically in the circumferential direction is disposed along the base end edge of the engaging portion 68. A negative electrode portion 75 connected to a lead wire 74 extending concentrically in the circumferential direction of the insulating portion 73 and extending from the negative electrode plate 24 of the water battery 21 is formed outside the outer peripheral edge of the insulating portion 73.
　一方、報知機器１８の第２コネクタ端子４８は、その中央部の係合孔７６の開口縁においてリード線７７を介して昇圧回路の回路端子（負極）に接続された負極部位７８が形成される。また、負極部位７８の外周縁の外方においてその周方向へ同心円状に延びる部分には、プラスチック等の絶縁部材から形成された絶縁部位７９が配置される。絶縁部位７９の外周縁の外方には、その周方向へ同心円状に延びる、リード線８０を介して昇圧回路の回路端子（正極）に接続された正極部位８１が形成される。報知機器１８の第２コネクタ端子４８は第１コネクタ１９Ａよりも僅かに大きい外形を有しており、正極部位８１の外周面に形成されたリブ８１ａに当接するように第１コネクタ端子４１を第２コネクタ端子４８に直接スナップ係合させることによって、それらの対向面を密接させた状態で安定的に互いに連結させることができる。 On the other hand, the second connector terminal 48 of the notification device 18 is formed with a negative electrode portion 78 connected to the circuit terminal (negative electrode) of the booster circuit via the lead wire 77 at the opening edge of the engagement hole 76 at the center. . In addition, an insulating portion 79 formed of an insulating member such as plastic is disposed in a portion extending concentrically in the circumferential direction outside the outer peripheral edge of the negative electrode portion 78. A positive electrode portion 81 connected to the circuit terminal (positive electrode) of the booster circuit via the lead wire 80 is formed outside the outer peripheral edge of the insulating portion 79 and extends concentrically in the circumferential direction. The second connector terminal 48 of the notification device 18 has an outer shape slightly larger than that of the first connector 19A, and the first connector terminal 41 is placed in contact with a rib 81a formed on the outer peripheral surface of the positive electrode portion 81. By directly snap-engaging the two connector terminals 48, they can be stably connected to each other with their opposing surfaces in close contact.
　第１コネクタ端子４１及び報知機器１８の第２コネクタ端子４８がかかる形状、構造を有することから、第１コネクタ端子４１と第２コネクタ端子４８とが複数別体に形成された第１実施形態に比べてより簡便にそれらを連結、分離することができる。したがって、操作者は片手でも操作することができ、すなわち、第１コネクタ１９Ａの摘持部６５を摘持することによって、これらの着脱をワンタッチで操作することができ、より操作性に優れている。なお、かかる効果を有する限りにおいて、第１コネクタ端子４１が雌スナップ形状であって、第２コネクタ端子４８はそれに係合する雄スナップ形状であってもよいし、第１及び第２コネクタ端子４１，４８における正極部位７１，８１と負極部位７５，７８との配置がそれぞれ逆であってもよい。 Since the first connector terminal 41 and the second connector terminal 48 of the notification device 18 have such a shape and structure, the first connector terminal 41 and the second connector terminal 48 are formed in a plurality of separate bodies in the first embodiment. They can be connected and separated more easily than those. Therefore, the operator can operate with one hand, that is, by holding the holding portion 65 of the first connector 19A, it is possible to operate the attachment and detachment with one touch, and the operability is excellent. . In addition, as long as it has such an effect, the 1st connector terminal 41 may be a female snap shape, the 2nd connector terminal 48 may be a male snap shape engaged with it, and the 1st and 2nd connector terminal 41 may be sufficient as it. , 48, the arrangement of the positive electrode portions 71, 81 and the negative electrode portions 75, 78 may be reversed.
＜第３実施形態＞
　図１０は、本発明の第３実施形態における図８と同様の液体検知装置１０の斜視図、図１１は、図１０のＸＩ－ＸＩ線断面図、図１２は、第１コネクタ１９Ａと報知機器１８の第２コネクタ１９Ｂの電極部８２とが解除された状態を示す図である。 <Third Embodiment>
10 is a perspective view of the liquid detection device 10 similar to FIG. 8 in the third embodiment of the present invention, FIG. 11 is a cross-sectional view taken along the line XI-XI of FIG. 10, and FIG. 12 is the first connector 19A and the notification device. It is a figure which shows the state from which the electrode part 82 of 18 2nd connector 19B was cancelled | released.
　図１０に示すとおり、報知機器１８の第２コネクタ１９Ｂは、第１端面８２ａと第２端面８２ｂとを有し、断面略Ｉ字状の雄ファスナ形状の電極部８２を有する。一方、第１コネクタ１９Ａは、電極部８２が嵌合される雌ファスナ形状を有し、第２コネクタ１９Ｂの電極部８２と第１コネクタ１９Ａがファスナ係合されることによって、センサ構造体１６と報知機器１８とは互いに着脱可能に連結され、かつ、電気的に接続される。 As shown in FIG. 10, the second connector 19B of the notification device 18 has a first end surface 82a and a second end surface 82b, and has a male fastener-shaped electrode portion 82 having a substantially I-shaped cross section. On the other hand, the first connector 19A has a female fastener shape to which the electrode portion 82 is fitted, and the electrode structure 82 of the second connector 19B and the first connector 19A are engaged with the fastener, thereby the sensor structure 16 and the first connector 19A. The notification device 18 is detachably connected to each other and is electrically connected.
　電極部８２は、第２コネクタ１９Ｂと一体に成形され、又は別体に成形されてそれに固定された弾性変形可能な可撓性を有するプラスチック製であって、第２端面８２ｂから第１端面８２ａに向かって徐々に幅狭となっており、電極部８２の上方部８２Ａとそれよりも幅広の下方部８２Ｂとの間に位置する幅狭部８２Ｃには、薄板状の正極電極板（第２コネクタ端子）８４ａと負極電極板（第２コネクタ端子）８４ｂとが取り付けられる。正極電極板８４ａと負極電極板８４ｂとはそれぞれセンサ構造体１６から延びるリード線７７，８０に接続されている。また、電極部８２の上方部８２Ａの側面には、その内部に介装されたスプリング（図示せず）によって付勢された係止ボタン８５が形成される。 The electrode portion 82 is formed integrally with the second connector 19B, or is made of a plastic that is elastically deformable and is molded separately and fixed thereto, and is formed from the second end surface 82b to the first end surface 82a. In the narrow portion 82C located between the upper portion 82A of the electrode portion 82 and the lower portion 82B wider than that, a thin plate-like positive electrode plate (second electrode) is formed. Connector terminal) 84a and negative electrode plate (second connector terminal) 84b are attached. The positive electrode plate 84a and the negative electrode plate 84b are connected to lead wires 77 and 80 extending from the sensor structure 16, respectively. Further, a locking button 85 urged by a spring (not shown) interposed therein is formed on the side surface of the upper portion 82A of the electrode portion 82.
　第１コネクタ１９Ａは、弾性変形可能な可撓性を有するプラスチック製であって、中央部においてその底面と連通する、電極部８２の上方部８２Ａ及び幅狭部８２Ｃとが嵌合される溝８６が形成される。溝８６の下方端を形成する底面の下端部８７には、薄板状の正極電極板（電極端子）８８ａと負極電極板８８ｂ（電極端子）とが取り付けられる。また、第１コネクタ１９Ａの側面には、押圧部８９が形成される。 The first connector 19A is made of a flexible plastic that can be elastically deformed. The first connector 19A communicates with the bottom surface of the central portion of the first connector 19A. Is formed. A thin plate-like positive electrode plate (electrode terminal) 88a and a negative electrode plate 88b (electrode terminal) are attached to the lower end 87 of the bottom surface forming the lower end of the groove 86. A pressing portion 89 is formed on the side surface of the first connector 19A.
　第２コネクタ１９Ｂの電極部８２と第１コネクタ１９Ａとを係合するときには、第１コネクタ１９Ａを電極部８２の第１端面８２ａ側に向かって押し当て、溝８６の内周面に電極部８２の外周面の一部を摺接させながら嵌合させる。具体的には、電極部８２の上方部８２Ａと溝８６の上部８６ａ、電極部８２の幅狭部８２Ｃと溝８６の下部８６ｂとがそれぞれ嵌合されるように電極部８２の一部を第１コネクタ１９Ａに嵌挿する。かかる状態において、電極部８２は第１端面８２ａ側に向かって幅狭となっており、また、第１コネクタ１９Ａの溝８６もそれに対応するように、リード線７０，７４が取り付けられた開口端側に向かって次第に幅狭となっているので、嵌合状態においてそれらは安定的に保持される。また、電極部８２の正負電極板８４ａ，８４ｂは、第１コネクタ１９Ａの正負電極板８８ａ，８８ｂとそれぞれ互いに弾性変形しながら摺接されているので電極板どうしが密接して一部において離間することはない。さらに、電極部８２の係止ボタン８５は、挿入時において第１コネクタ１９Ａの溝８６の内周面に摺接されることによってスプリングの付勢に抗して押し込められ、第１コネクタ１９Ａの押圧部８９の内部において解放されて、それに係止する。 When the electrode portion 82 of the second connector 19B is engaged with the first connector 19A, the first connector 19A is pressed toward the first end surface 82a side of the electrode portion 82, and the electrode portion 82 is pressed against the inner peripheral surface of the groove 86. A part of the outer peripheral surface is fitted while sliding. Specifically, a part of the electrode portion 82 is placed so that the upper portion 82A of the electrode portion 82 and the upper portion 86a of the groove 86, and the narrow portion 82C of the electrode portion 82 and the lower portion 86b of the groove 86 are fitted. 1 is inserted into the connector 19A. In such a state, the electrode portion 82 becomes narrower toward the first end face 82a side, and the open end to which the lead wires 70 and 74 are attached so that the groove 86 of the first connector 19A also corresponds thereto. Since the width gradually decreases toward the side, they are stably held in the fitted state. Further, since the positive and negative electrode plates 84a and 84b of the electrode portion 82 are in sliding contact with the positive and negative electrode plates 88a and 88b of the first connector 19A while being elastically deformed from each other, the electrode plates are in close contact with each other and partially separated. There is nothing. Furthermore, the locking button 85 of the electrode portion 82 is pushed against the bias of the spring by being slidably contacted with the inner peripheral surface of the groove 86 of the first connector 19A at the time of insertion, and the pressing of the first connector 19A. It is released inside the part 89 and locks to it.
　このように、第１コネクタ１９Ａと第２コネクタ１９Ｂの電極部８２とがファスナ係合されることによって、センサ構造体１６と報知機器１８とが安定的に着脱可能に連結され、かつ、電気的に接続される。また、液体検知装置１０の使用後において、操作者が一方の手で第１コネクタ１９Ａを摘んで押圧部８９を押圧して係止ボタン８５による係止を解除し、それを引き抜くことによって、いわゆるワンタッチ操作でこれらの係合を解除することができる。なお、かかるファスナ係合による第１コネクタ１９Ａと電極部８２との係合部位の厚さ、すなわち、コネクタ１７の厚さ寸法は、約０．５～２．０ｃｍであって、比較的に薄く、たとえ、報知機器１８のかかる係合部位が使用者の身体に当接したとしても大きな違和感を与えるおそれはない。 As described above, the electrode structure 82 of the first connector 19A and the electrode portion 82 of the second connector 19B are fastened to each other, so that the sensor structure 16 and the notification device 18 are stably and detachably connected and electrically connected. Connected to. In addition, after using the liquid detection device 10, the operator picks the first connector 19 </ b> A with one hand, presses the pressing portion 89 to release the locking by the locking button 85, and pulls it out, so-called. These engagements can be released by a one-touch operation. Note that the thickness of the engagement portion between the first connector 19A and the electrode portion 82 due to the fastener engagement, that is, the thickness dimension of the connector 17 is about 0.5 to 2.0 cm, and is relatively thin. Even if the engaging part of the notification device 18 abuts on the user's body, there is no possibility of giving a sense of incongruity.
　図１３～１５は、本発明にかかる液体検知装置の他の使用例を示す図である。なお、これらの使用例は、液体検知装置の使用例の一部であって、それらに限定されるものではない。 13 to 15 are diagrams showing other examples of use of the liquid detection device according to the present invention. In addition, these usage examples are a part of usage examples of the liquid detection device, and are not limited thereto.
＜使用例１＞
　図１３に示すとおり、本使用例では、下着や使い捨ておむつ等のパンツ型の着用物品９０の内部に固定された体液処理用パッド９１上にセンサ構造体１６が配置される。かかる使用態様において、着用者が排尿（排便）した場合には、その排泄された尿（便）を触媒として水電池２１が発電し、その起電力によって報知機器１８が作動してその内部回路の発音部及び又は発光部によって外部に着用者の排泄を知らせることができる。したがって、着用者が排尿（排便）後速やかに体液処理用パッド９１の交換が可能であって、着用者に排泄物の付着したこれらの着用物品を長期間着用することによる不快感を与えるおそれはない。 <Use Example 1>
As shown in FIG. 13, in this use example, the sensor structure 16 is disposed on a body fluid treatment pad 91 fixed inside a pants-type wearing article 90 such as an underwear or a disposable diaper. In such a use mode, when the wearer urinates (feces), the water battery 21 generates electricity using the excreted urine (feces) as a catalyst, and the notification device 18 is activated by the electromotive force, so that the internal circuit The wearer's excretion can be notified to the outside by the sound generation unit and / or the light emitting unit. Therefore, the wearer can immediately replace the body fluid treatment pad 91 after urination (defecation), and there is a risk that the wearer may feel discomfort due to wearing these worn articles with excrement attached for a long period of time. Absent.
　また、通常、高齢者や身体障害者などの要介護者の排泄周期を知るためには、排泄を感知するための電子素子を使用した検知センサや集積回路を要し、そのための比較的に大型の装置を要するところ、本発明による液体検知装置１０によれば、着用者の排泄を容易に検知することができ、また、その排泄サイクルを記録することによって、より簡便にその排泄周期を知ることができる。また、既述のとおり、液体検知装置１０の使用後において、ワンタッチでコネクタ１７による連結を解除し、センサ構造体１６のみを廃棄して交換することによって再使用できるので、従来の装置、設備に比してコストを低く抑えることができ、経済的に優れている。 Also, in general, in order to know the excretion cycle of elderly people and persons with special needs such as disabled persons, detection sensors and integrated circuits that use electronic elements to detect excretion are required, which is relatively large for that purpose. However, according to the liquid detection device 10 of the present invention, it is possible to easily detect the excretion of the wearer, and more easily know the excretion cycle by recording the excretion cycle. Can do. In addition, as described above, after the use of the liquid detection device 10, the connection by the connector 17 is released with one touch, and only the sensor structure 16 can be discarded and replaced, so that it can be reused. Compared to this, the cost can be kept low, which is economically superior.
　さらに、図１４に示すとおり、本使用例では、報知機器１８の裏面にマジックテープ（登録商標）又は両面テープによって形成された止着手段９３が設けられている。かかる止着手段９３によって報知機器を着用物品の外面に安定的に固定することができるので、報知機器１８が横臥状態にある着用者の身体の背面に移動して違和感を与えたり、着用物品の内部に移動して排泄物で汚れたりするおそれはない。 Furthermore, as shown in FIG. 14, in this use example, a fastening means 93 formed of Velcro (registered trademark) or double-sided tape is provided on the back surface of the notification device 18. Since the notification device can be stably fixed to the outer surface of the worn article by the fastening means 93, the notification device 18 moves to the back of the wearer's body in a lying state, and gives an uncomfortable feeling. There is no risk of moving inside and getting dirty with excrement.
＜使用例２＞
　図１５に示すとおり、本発明に係る液体検知装置１０は、犬や猫などの愛玩動物９４にも使用することができる。特に、室内で飼われている愛玩動物９４の場合には、室内における排泄物（尿、便）の散乱を防止するために、使い捨ておむつや体液処理用パッドなどの体液処理用物品９６を被服の内部に着用させることが多い。愛玩動物９４は、下半身の動きが活発であって、体液処理用物品９６を着用させた状態で室内を移動した場合には、その動きによって体液処理用物品９６が身体から外れてしまうおそれがあり、通常、体液処理用物品９６を被覆するように被服９７を着用させることが一般的である。 <Usage example 2>
As shown in FIG. 15, the liquid detection device 10 according to the present invention can also be used for pets 94 such as dogs and cats. In particular, in the case of a companion animal 94 kept indoors, in order to prevent scattering of excrement (urine, stool) in the room, a body fluid treatment article 96 such as a disposable diaper or a body fluid treatment pad is worn. Often worn inside. The pet animal 94 has active movement of the lower body, and when it moves in the room with the body fluid treatment article 96 worn, the body fluid treatment article 96 may be detached from the body due to the movement. In general, it is common to wear clothing 97 so as to cover the body fluid treatment article 96.
　しかし、体液処理用物品９６が被服９７で覆われた場合には、排泄物の臭いによって排泄されたことを外部に知らせることができず、排泄物が愛玩動物９４の肌に長時間付着してかぶれや発疹を生じさせる原因ともなっていた。本発明に係る液体検知装置１０によれば、被服内部に位置する体液処理用物品９６の内面にセンサ構造体１６を配置してその排泄を感知し、報知機器１８によって速やかに外部に排泄されたことを知らせることができるので、早期に体液処理物品９６の交換が可能となり、かかる不利益が生じるおそれはない。 However, when the body fluid treatment article 96 is covered with the clothes 97, it cannot be notified to the outside that the excrement has been excreted due to the smell of excrement, and the excrement adheres to the skin of the pet 94 for a long time. It also caused rashes and rashes. According to the liquid detection device 10 according to the present invention, the sensor structure 16 is arranged on the inner surface of the body fluid treatment article 96 located inside the clothing to sense the excretion thereof, and is quickly excreted to the outside by the notification device 18. Therefore, the bodily fluid treatment article 96 can be replaced at an early stage, and there is no possibility that such a disadvantage will occur.
１０　液体検知装置
１６　センサ構造体
１７　コネクタ
１８　報知機器
１９Ａ　第１コネクタ
１９Ｂ　第２コネクタ
２１　水電池
２３　正極電極板
２４　負極電極板
２５　ラップシート（絶縁部材）
２６　正極活物質
４１　第１コネクタ端子
４１ａ　第１コネクタ端子（正極）
４１ｂ　第１コネクタ端子（負極）
４８　第２コネクタ端子
４８ａ　第２コネクタ端子（正極）
４８ｂ　第２コネクタ端子（負極）
５６　昇圧回路部
６０　昇圧発振用のトランス
６１　トランジスタ
６５　摘持部
６８　係合部
７３，７９　絶縁部位
７１，８１　正極部位
７５，７８　負極部位
７６　係合孔
８２　第２コネクタの電極部
８２Ａ　上方部
８２Ｂ　下方部
８２Ｃ　幅狭部
８４ａ　第２コネクタ端子（正極電極板）
８４ｂ　第２コネクタ端子（負極電極板）
８６　溝
８７　第１コネクタの下端部
８８ａ　第１コネクタ端子（正極電極板）
８８ｂ　第１コネクタ端子（負極電極板）
９０　着用物品
９３　止着手段 DESCRIPTION OF SYMBOLS 10 Liquid detector 16 Sensor structure 17 Connector 18 Notification apparatus 19A 1st connector 19B 2nd connector 21 Water battery 23 Positive electrode plate 24 Negative electrode plate 25 Wrap sheet (insulating member)
26 positive electrode active material 41 first connector terminal 41a first connector terminal (positive electrode)
41b First connector terminal (negative electrode)
48 Second connector terminal 48a Second connector terminal (positive electrode)
48b Second connector terminal (negative electrode)
56 Booster circuit part 60 Transformer for boosting oscillation 61 Transistor 65 Holding part 68 Engaging part 73, 79 Insulating part 71, 81 Positive part 75, 78 Negative part 76 Engaging hole 82 Second connector electrode part 82A Upper part 82B Lower part 82C Narrow part 84a Second connector terminal (positive electrode plate)
84b Second connector terminal (negative electrode plate)
86 Groove 87 Lower end portion 88a of first connector First connector terminal (positive electrode plate)
88b First connector terminal (negative electrode plate)
90 Wearing article 93 Fastening means

Claims (9)

  1. 　センサ構造体と、コネクタを介して前記センサ構造体と電気的に接続された報知機器とを有する液体検知装置において、
    　前記センサ構造体は、液体を触媒とする水電池を有し、
    　前記コネクタは、前記水電池の電極と接続された一対の第１コネクタ端子を有する第１コネクタと、前記報知機器の電極と接続された一対の第２コネクタ端子を有する第２コネクタとを含み、
    　前記第１コネクタと前記第２コネクタとが、互いに着脱可能に連結され、かつ前記第１コネクタ端子と前記第２コネクタ端子とが電気的に接続されることを特徴とする前記液体検知装置。     In a liquid detection device having a sensor structure and a notification device electrically connected to the sensor structure via a connector,
    The sensor structure has a water battery using a liquid as a catalyst,
    The connector includes a first connector having a pair of first connector terminals connected to electrodes of the water battery, and a second connector having a pair of second connector terminals connected to electrodes of the notification device,
    The liquid detection device, wherein the first connector and the second connector are detachably connected to each other, and the first connector terminal and the second connector terminal are electrically connected.
  2. 　前記第１コネクタ端子と、前記第２コネクタ端子とが、スナップ係合によって連結される請求項１に記載の液体検知装置。 The liquid detection device according to claim 1, wherein the first connector terminal and the second connector terminal are coupled by snap engagement.
  3. 　前記第１コネクタ端子は、凸円筒状の係合部を有する雄スナップ形状を有しており、前記係合部には正極部位が形成されており、前記正極部位の周方向外方においてそれと同心円状に延びる絶縁部位と負極部位とが形成されており、
    　前記第２コネクタ端子は、その中央部に係合孔を有する雌スナップ形状を有し、前記係合孔の開口縁部に沿って負極部位が形成されており、前記負極部位の周方向外方においてそれと同心円状に延びる絶縁部位と正極部位とが形成されている請求項２に記載の液体検知装置。     The first connector terminal has a male snap shape having a convex cylindrical engagement portion, and a positive electrode portion is formed in the engagement portion, and a concentric circle is formed on the outer periphery in the circumferential direction of the positive electrode portion. An insulating part and a negative electrode part extending in a shape are formed,
    The second connector terminal has a female snap shape having an engagement hole at the center thereof, and a negative electrode portion is formed along an opening edge of the engagement hole. The liquid detection device according to claim 2, wherein an insulating portion and a positive electrode portion extending concentrically therewith are formed.
  4. 　前記第２コネクタは、前記第２コネクタ端子が取り付けられた雄ファスナ形状の電極部を含み、前記第１コネクタは、前記電極部の一部が嵌挿される溝を有する雌ファスナ形状であって、前記第１コネクタと前記第２コネクタの電極部とがファスナ係合によって互いに連結されている請求項１に記載の液体検知装置。 The second connector includes a male fastener-shaped electrode portion to which the second connector terminal is attached, and the first connector has a female fastener shape having a groove into which a part of the electrode portion is inserted. The liquid detection device according to claim 1, wherein the first connector and the electrode portion of the second connector are connected to each other by fastener engagement.
  5. 　前記第２コネクタの電極部は、断面略Ｉ字状を有し、上方部と、下方部と、それらの間に位置する幅狭部位とを含み、前記幅狭部の両側に薄板状の前記第２コネクタ端子が取り付けられており、前記第１コネクタの前記溝の下部を形成する両端部には薄板状の前記第１コネクタ端子が取り付けられており、前記電極部の前記上方部及び前記幅狭部とを前記第１コネクタの前記溝に嵌挿させることによって、前記第１コネクタ端子と前記第２コネクタ端子とが密接する請求項４に記載の液体検知装置。 The electrode portion of the second connector has a substantially I-shaped cross section, includes an upper portion, a lower portion, and a narrow portion positioned therebetween, and the thin plate-like portions on both sides of the narrow portion. A second connector terminal is attached, and a thin plate-like first connector terminal is attached to both ends forming the lower part of the groove of the first connector, and the upper portion and the width of the electrode portion The liquid detection device according to claim 4, wherein the first connector terminal and the second connector terminal are brought into close contact with each other by inserting a narrow portion into the groove of the first connector.
  6. 　前記報知機器は、その内部に前記水電池による電源電圧を昇圧させるための昇圧回路部が設けられている請求項１～５のいずれかに記載の液体検知装置。 The liquid detection device according to any one of claims 1 to 5, wherein the notification device is provided with a booster circuit unit for boosting a power supply voltage of the water battery.
  7. 　前記昇圧回路部は、少なくとも昇圧発振用のトランスとトランジスタを含み、前記トランスの２次側に前記トランジスタのベース端子が接続され、正帰還発振による昇圧パルスが発生する請求項１～６のいずれかに記載の液体検知装置。 The boost circuit unit includes at least a transformer for boost oscillation and a transistor, the base terminal of the transistor is connected to the secondary side of the transformer, and a boost pulse by positive feedback oscillation is generated. The liquid detection device according to 1.
  8. 　前記水電池は、１枚の正極電極板と、２枚の負極電極板と、前記正極電極板及び前記負極電極板との間に介在し、それらと直接的または絶縁部材を介して間接的に当接する正極活物質とを有し、前記正極電極板と一方の前記負極電極板との離間寸法が、前記正極電極板と他方の前記負極電極板との離間寸法とほぼ等しい請求項１～７のいずれかに記載の液体検知装置。 The water battery is interposed between one positive electrode plate, two negative electrode plates, the positive electrode plate and the negative electrode plate, and directly or indirectly through an insulating member. A positive electrode active material that abuts, and a separation dimension between the positive electrode plate and one negative electrode plate is substantially equal to a separation dimension between the positive electrode plate and the other negative electrode plate. The liquid detection device according to any one of the above.
  9. 　前記報知機器の外面には、着用物品に止着するための止着手段が設けられている請求項１～８のいずれかに記載の前記液体検知装置。 The liquid detection device according to any one of claims 1 to 8, wherein fixing means for fixing to a worn article is provided on an outer surface of the notification device.
PCT/JP2011/053557 2011-02-18 2011-02-18 Liquid detection device WO2012111157A1 (en)

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