JP2010261800A - Energization display - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an energization display which blinks over a wide area, has favorable visibility, and prevents false recognition by an operator. <P>SOLUTION: The energization display 100 includes an energization detection unit for detecting the passage of an electric current in a predetermined conductive wire, an energization display unit 130 formed of a fluorescent layer including an inorganic EL material, and a drive circuit unit for driving the energization display unit 130 when the passage of an electric current in the conductive wire has been detected by the energization detection unit. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an energization display device that visualizes a conduction state of a distribution line connected to an electrical device such as a receiving / transforming panel or a distribution panel.

  In buildings such as buildings that consume large amounts of power, distribution boards such as substations and distribution boards are provided to transform high-voltage current drawn from high-voltage lines and supply them to various places in the building. Yes. In order to prevent electric shock accidents caused by workers engaged in maintenance work on electrical equipment such as substation panels and distribution boards, it has been attempted to visualize the energization state of distribution lines connected to the electrical equipment. Proposals have been made.

For example, Patent Document 1 (Japanese Patent Laid-Open No. 5-207618) discloses a device for displaying an energization state of a covered distribution line housed in a casing of a distribution board, and an induced current when the covered distribution line is energized. And a display unit that displays that the coated distribution line is in an energized state by an induced current generated in the electromotive unit. It is disclosed.
JP-A-5-207618

  However, in a conventional energization state display device, an LED or the like is generally used as a display unit. According to such a display unit, a display mode in which a relatively small area is lit in a pinpoint manner. Therefore, the visibility was poor in confirming the lighting state, which was a problem. If the visibility of the power status display device is poor, the operator may recognize that the power is not supplied even though the power is actually supplied, causing an electric shock accident. It was.

  The present invention solves the above-mentioned problem, and the invention according to claim 1 is an energization display comprising an energization detection unit for detecting current conduction in a predetermined conductive wire and a fluorescent layer containing an inorganic EL material. And a drive circuit unit that drives the energization display unit when current conduction in the conductive line is detected by the energization detection unit.

  According to a second aspect of the present invention, in the energization display device according to the first aspect, the energization display section is strip-shaped and flexible.

  According to a third aspect of the present invention, there is provided a current-carrying display portion that is made of a fluorescent layer containing an inorganic EL material and is flexible in a strip shape, and two terminal portions that are made of a magnetic material that inputs a potential for driving the current-carrying display portion. And an energization display device.

  The invention according to claim 4 has a copper bar constituting an electric circuit, a dielectric electric layer provided on the copper bar, and a fluorescent layer containing an inorganic EL material provided on the dielectric electric layer. It is the electricity supply display device characterized by this.

According to the energization display device of the present invention, since the energization display unit 130 made of a fluorescent layer containing an inorganic EL material has a display form that blinks (lights up) in a relatively wide area, the visibility becomes good. Misrecognition by an operator can be prevented, and an electric shock accident can be prevented.

1 is a diagram showing a schematic configuration of an energization display device according to a first embodiment of the present invention. FIG. 2 is a diagram showing a state where the energization display device according to the first embodiment of the present invention is attached to a conductive wire. 1 is a diagram showing a schematic configuration of a circuit unit of an energization display device according to a first embodiment of the present invention. FIG. 3 is a diagram showing a cross-sectional configuration of an energization display unit of the energization display device according to the first embodiment of the present invention. FIG. 3 is a diagram showing an example of use of the energization display device according to the first embodiment of the present invention. It is a figure which shows the structure of the outline of the electricity supply display apparatus which concerns on 2nd Embodiment of this invention. It is a figure which shows the cross-sectional structure of the electricity supply display part 230 of the electricity supply display apparatus 200 which concerns on 2nd Embodiment of this invention. It is a figure which shows the usage example of the electricity supply display apparatus 200 which concerns on 2nd Embodiment of this invention. It is a figure which shows the schematic structure of the electricity supply display apparatus 300 which concerns on 3rd Embodiment of this invention. It is a figure which shows the copper bar conventionally used for the electrical equipment. It is a figure which shows the cross-sectional structure of the electricity supply display part 330 of the electricity supply display apparatus 300 which concerns on 3rd Embodiment of this invention. It is a figure which shows the usage example of the electricity supply display apparatus 300 which concerns on 3rd Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a diagram showing a schematic configuration of an energization display device according to a first embodiment of the present invention. In FIG. 1, 100 is an energization display device, 101 is a main body case, 102 is a fixed case, 103 is a movable case, 104 is a pivot point, 105 is an operating lever, 106 is a first core, 107 is a second core, Reference numeral 108 denotes an inspection wire, 110 denotes a circuit portion, 120 denotes a lead wire, 130 denotes an energization display portion, and C denotes a conductive wire (cable).

In the energization display device 100 according to the first embodiment of the present invention, the conductive line C is, for example, 660 by alternating current.
It is configured to detect whether or not a high voltage of 0 V is conducted, and to perform blinking display on the energization display unit 130 when detected.

A fixed-side case 102 that houses the first core 106 is provided so as to extend to the main body case 101 of the energization display device 100. The second core 107 that forms an annular core in contact with the first core 106 is housed in the movable case 103. The movable side case 103 is rotated about the rotation fulcrum 104 in accordance with the operation by the operation lever 105, so that the annular structure related to the fixed side case 102 and the movable side case 103 can be opened. Thus, the conductive wire C can be attached as shown in FIG. FIG. 2 is a view showing a state where the energization display device 100 according to the first embodiment of the present invention is attached to the conductive line C. FIG. As shown in FIG. 2, after the energization display device 100 is attached to the conductive line C, the fixed side case 102 and the movable side case 103 are again returned to the annular structure, and the first core 106, the second core 107, Are brought into contact with each other to form an annular core.

When an alternating current is conducted to the conductive wire C, a varying magnetic field is induced in the annular core formed by the first core 106 and the second core 107. A test wire 108 is wound around the first core 106, and a varying magnetic field in the core induces a current in the test wire 108. The current induced by the inspection wire 108 is detected by the circuit unit 110 in the main body case 101.

FIG. 3 is a diagram showing a schematic configuration of the circuit unit 110 of the energization display device 100 according to the first embodiment of the present invention. 3, reference numeral 111 denotes a detection circuit, 112 denotes a power supply unit, 113 denotes a step-down circuit, 114 denotes a signal amplification circuit, 115 denotes an on / off switch circuit, and 116 denotes a display unit drive inverter circuit.

  When the detection circuit 111 detects the current induced by the inspection line 108, the detection circuit 111 converts the current into a predetermined electrical signal and inputs the signal to the signal amplification circuit 114.

As the power supply unit 112, for example, a power supply unit of 4.5V in which three AAA batteries are connected in series is used. The step-down circuit 113 steps down this 4.5V to 3V and serves as a power source for the signal amplification circuit 114.

  When there is an input from the detection circuit 111, the signal amplification circuit 114 converts it to a level at which the on / off switch circuit 115 operates. The on / off switch circuit 115 performs a switching operation for turning on / off a subsequent inverter circuit. By the switching operation of the on / off switch circuit 115 as described above, the display of the energization display unit 130 blinks. The display unit drive inverter circuit 116 generates a drive current in a frequency band that is optimal for the display operation of an inorganic EL (Electroluminescence) display element used as the energization display unit 130.

  The output from the circuit unit 110 as described above is supplied to the energization display unit 130 through the lead wire 120. The substantially entire surface of the energization display unit 130 is composed of an inorganic EL display element containing an inorganic EL material. When a drive current is supplied to the energization display unit 130, almost the entire surface on one side of the energization display unit 130 emits light. It has become. Further, the energization display unit 130 has a strip shape as shown in the figure, and is sealed (pouched) with an inorganic EL display element, and is configured to be able to change its shape flexibly to some extent. For example, the strip-shaped energization display unit 130 can be wound around the energization line C.

Next, the structure of such an energization display unit 130 will be described. FIG. 4 is a diagram showing a cross-sectional configuration of the energization display unit 130 of the energization display device 100 according to the first embodiment of the present invention. In FIG. 4, 131 is a back electrode, 132 is an induction electric layer, 133 is a phosphor layer, 134 is a transparent electrode layer, and 135 is a sealing member. FIG. 4 schematically shows the AA ′ cross section of FIG.

An appropriate thin film metal material is used as the back electrode 131, and the induction electric layer 132 is formed on the back electrode 131 by coating or the like. As the induction electric layer 132, barium titanate is used. A phosphor layer 133 is further formed on the induction electrical layer 132 by coating. The phosphor layer 133 is formed by dispersing an inorganic EL light-emitting material such as zinc sulfide, a fluororesin binder in which a copolymer of vinylidene fluoride and propylene hexafluoride is dissolved in a solvent of methyl ketone. After the solvent of the phosphor layer 133 is dried, ITO (indium-tin oxide or the like) is applied as the transparent electrode layer 134. Moreover, as the sealing member 135 that seals the above configuration, a transparent polymer material or the like that can extract light emitted from the phosphor layer 133 is used. Next, the energization display device 100 configured as described above. Will be described. FIG. 5 is a diagram showing a usage example of the energization display device 100 according to the first embodiment of the present invention. FIG. 5 shows an example in which the energization display device 100 according to the present embodiment is attached only to R of the three-phase high-voltage cables of R, S, and T, but the energization display device 100 according to the present embodiment is It can be applied to any cable. When attached to the cable C, the cable C is clamped by the fixed case 102 and the movable case 103 of the energization display device 100, and the light emitting surface of the energization display unit 130 is on the front side, 130 is wound around the cable C as shown. When a current flows through the cable C with the energization display device 100 set as described above, the current is detected by the detection circuit 111 and the energization display unit 130 blinks.

  In addition, since the electricity display part 130 is a flexible strip-shaped member, you may make it mount | wear with the other form, without winding the electricity display part 130 around the cable C. FIG.

  According to the energization display device 100 of the present invention as described above, the energization display unit 130 made of a fluorescent layer containing an inorganic EL material is used so as to be wound around the cable C, and the energization display unit 130 is a relatively wide area. Since the display form blinks at, the visibility is improved, erroneous recognition by the operator can be prevented, and an electric shock accident can be prevented.

  Next, another embodiment of the present invention will be described. FIG. 6 is a diagram showing a schematic configuration of an energization display device 200 according to the second embodiment of the present invention. In FIG. 6, reference numeral 200 denotes an energization display device, 220 denotes a lead wire, 230 denotes an energization display unit, and 240 denotes a magnetic terminal unit. An energization display device 200 according to the second embodiment includes an energization display unit 230 that emits light from substantially the entire surface, and a magnetic terminal unit 240 that inputs a potential to the energization display unit 230 via a lead wire 220. ing. The energization display device 200 according to the second embodiment is assumed to be applied to electrical equipment having a relatively low voltage of about several hundreds V to 400 V, and the voltage applied to the energization display unit 230 is directly In addition, it should be taken from the terminals of electrical equipment such as breakers. The magnetic terminal portion 240 is made of a magnetic material having conductivity, is magnetized, and can be fixed by being attracted to a screw or the like of the terminal portion of the electrical equipment.

  The substantially entire surface of the energization display unit 230 is composed of an inorganic EL display element containing an inorganic EL material. When a drive current is supplied to the energization display unit 230, almost the entire surface on one side of the energization display unit 230 emits light. It has become. The energization display unit 230 has a strip shape as shown in the figure, and includes an inorganic EL display element sealed (pouched), and is configured to be able to change its shape to some extent flexibly. For example, the strip-shaped energization display unit 230 can be wound around the energization line C.

  Next, the structure of such an energization display unit 230 will be described. FIG. 7 is a diagram showing a cross-sectional configuration of the energization display unit 230 of the energization display device 200 according to the second embodiment of the present invention. In FIG. 7, reference numeral 231 denotes a back electrode, 232 denotes an induction electric layer, 233 denotes a phosphor layer, 234 denotes a transparent electrode layer, and 235 denotes a sealing member. FIG. 7 schematically shows an A-A ′ section of FIG. 6.

An appropriate thin film metal material is used as the back electrode 231, and the induction electric layer 232 is formed on the back electrode 231 by coating or the like. As the induction electrical layer 232, barium titanate is used. A phosphor layer 233 is further formed on the induction electrical layer 232 by coating. The phosphor layer 233 is formed by dispersing an inorganic EL light emitting material such as zinc sulfide, a fluororesin binder in which a copolymer of vinylidene fluoride and propylene hexafluoride is dissolved in a solvent of methyl ketone. After the solvent of the phosphor layer 233 is dried, ITO (indium-tin oxide or the like) is applied as the transparent electrode layer 234. Moreover, as the sealing member 235 that seals the above configuration, a transparent polymer material that can extract light emitted from the phosphor layer 233 is used. Next, the energization display device 200 configured as described above. Will be described. FIG. 8 is a diagram showing a usage example of the energization display device 200 according to the second embodiment of the present invention. Although FIG. 8 shows an example in which the energization display device 200 according to the present embodiment is attached to only one of the three-phase cables having a relatively low voltage, the energization display device 200 according to the present embodiment is It can be applied to any cable. Moreover, T has shown the terminal part of electric equipments, such as a circuit breaker, and the electricity supply display apparatus 200 which concerns on this embodiment utilizes these two magnetic terminal parts 240 in these two different terminal parts, and these magnetic terminals. The part 240 is attached by magnetic force. The energization display device 200 according to the present embodiment can be easily attached to the terminal portion of the electrical equipment by the magnetic terminal portion 240 as described above, so that it does not take a lot of work.

  Further, when the energization display unit 130 is attached to the cable C, the energization display unit 130 is wound around the cable C as illustrated so that the light emitting surface of the energization display unit 130 is on the front side. In this state, when the energization display device 200 is set with the cable C, when a potential difference is generated between the two terminal portions, the energization display portion 130 is turned on.

  Since the energization display unit 130 is a flexible strip-shaped member, the energization display unit 130 may be mounted in another form without being wound around the cable C.

  According to the energization display device 200 of the present invention as described above, the energization display section 230 made of a fluorescent layer containing an inorganic EL material is used so as to be wound around the cable C, and the energization display section 230 is a relatively wide area. Since the display mode is such that it is turned on, the visibility is improved, and misrecognition by an operator can be prevented, and an electric shock accident can be prevented.

  Next, another embodiment of the present invention will be described. FIG. 9 is a diagram showing a schematic configuration of an energization display device 300 according to the third embodiment of the present invention. FIG. 10 is a diagram showing a copper bar 301 that has been conventionally used in electrical equipment.

  In the energization display device 300 according to the third embodiment, a conventional copper bar 301 is provided with a dielectric electric layer, and a fluorescent layer containing an inorganic EL material is further provided on the dielectric electric layer, whereby the copper bar 301 itself. Is configured to emit light as the energization display unit 330.

  Next, the structure of such an energization display unit 330 will be described. FIG. 11 is a diagram showing a cross-sectional configuration of the energization display unit 330 of the energization display device 300 according to the third embodiment of the present invention. In FIG. 11, 301 is a copper bar, 302 is an induction electric layer, 303 is a phosphor layer, 304 is a transparent electrode layer, and 305 is a protective layer. FIG. 11 schematically shows the A-A ′ cross section of FIG. 9.

  On the solid copper bar 301, an induction electric layer 302 containing barium titanate is formed to a thickness of about 10 to 50 microns by coating or the like. After passing through a predetermined drying step, a phosphor layer 303 is further formed on the induction electric layer 302 by coating at a thickness of 5 to 40 microns. The phosphor layer 303 is formed by dispersing an inorganic EL light-emitting material such as zinc sulfide, or a copolymer of vinylidene fluoride and propylene hexafluoride in a fluorine resin binder dissolved in a solvent of methyl ketone. After coating the phosphor layer 303 and drying the solvent of the phosphor layer 303, ITO (indium-tin oxide or the like) is applied as a transparent electrode layer 304 to a thickness of 5 to 10 microns. A protective layer 305 is provided after the formation of the transparent electrode layer 304. As the protective layer 305, a transparent polymer material that can extract light emitted from the phosphor layer 303 can be used.

Next, a usage pattern of the energization display device 300 configured as above will be described. FIG. 12 is a diagram showing a usage example of the energization display device 300 according to the third embodiment of the present invention. FIG. 12 assumes a case in which a three-phase alternating current having a relatively low voltage flows through three copper bars, and the rightmost copper bar is used as the energization display device 300. Although the case is illustrated, in the present invention, any copper bar in FIG.

  In the example shown in FIG. 12, the copper bar protective layer 305 located on the rightmost side is removed to expose the transparent electrode layer 304 so that the transparent electrode layer 30 and the central copper bar portion are short-circuited. . Thus, in the state where the transparent electrode layer 304 of one energization display device 300 and the copper bar 301 of the other energization display device 300 are short-circuited, a potential difference is generated between the two energization display devices 300 (copper bar 301). Then, the entire energization display unit 330 of one energization display device 300 is turned on.

  According to the energization display device 300 of the present invention as described above, the energization display portion 330 made of a fluorescent layer containing an inorganic EL material is provided on substantially the entire surface of the copper bar 301, and the energization display portion 330 is lit in a relatively wide area. Therefore, the visibility is improved, and erroneous recognition by an operator can be prevented, and an electric shock accident can be prevented.

DESCRIPTION OF SYMBOLS 100 ... Power supply display apparatus, 101 ... Main body case, 102 ... Fixed side case, 103 ... Movable side case, 104 ... Rotation fulcrum, 105 ... Operation lever, 106 ... 1st core, 107 ... 2nd core, 108 ... inspection wire, 110 ... circuit part, 111 ... detection circuit, 112 ... power supply part, 113 ... step-down circuit, 114 ... Signal amplification circuit, 115 ... ON / OFF switch circuit, 116 ... Display unit drive inverter circuit, 120 ... Lead wire, 130 ... Current display unit, 131 ... Back electrode, 132 ... Inductive electrical layer, 133: phosphor layer, 134: transparent electrode layer, 135 ... sealing member, 200 ... energization display device, 220 ... lead wire, 230 ... energization display Part, 240 ... magnetic terminal part, 300 ... Electrodeposition display device, 301 ... copper bar, 302 ... induction electric layer, 303 ... phosphor layer, 304 ... transparent electrode layer, 305 ... protective layer, 330 ... energizing the display unit

Claims (4)

An energization detection unit for detecting current conduction in a predetermined conductive wire;
An energization display unit comprising a fluorescent layer containing an inorganic EL material;
And a drive circuit unit that drives the energization display unit when conduction of current in the conductive line is detected by the energization detection unit. The energization display device according to claim 1, wherein the energization display unit is a strip shape and is flexible. A current-carrying display portion that is made of a fluorescent layer containing an inorganic EL material and is flexible in a strip shape;
An energization display device comprising: two terminal portions made of a magnetic material for inputting a potential for driving the energization display portion. Copper bars that make up the electrical circuit;
A dielectric electrical layer provided on the copper bar;
And a fluorescent layer including an inorganic EL material provided on the dielectric electric layer.

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