CN115541977A - Electrified detection device and power equipment - Google Patents
Electrified detection device and power equipment Download PDFInfo
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- CN115541977A CN115541977A CN202211418344.5A CN202211418344A CN115541977A CN 115541977 A CN115541977 A CN 115541977A CN 202211418344 A CN202211418344 A CN 202211418344A CN 115541977 A CN115541977 A CN 115541977A
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- insulating layer
- electroluminescent
- detection device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
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Abstract
The invention discloses a live detection device and power equipment, and relates to the technical field of power equipment. The electrification detecting device includes an electroluminescence panel including an electromagnet, an electroluminescence cell, and a transparent electrode, and an electrically conductive wire. The conductive magnet can be attached to a metal shell of the power equipment; the electroluminescent unit is formed on the conductive magnet; the transparent electrode is formed on one side of the electroluminescent unit, which is far away from the conductive magnet, and can transmit light; one end of the conducting wire is connected to the transparent electrode, the other end of the conducting wire is grounded, an electric field can be formed between the conductive magnet and the transparent electrode after the metal shell is electrified, and the electric field can be used for exciting the electroluminescent unit to emit light, so that the electrified detection device can detect the metal shell. The invention solves the technical problem that the mode of detecting whether the metal shell of the power equipment is electrified by the existing electroscope is not visual enough.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a live detection device and power equipment.
Background
Electric power equipment, electric devices, electric instruments, and the like are frequently and widely used. Generally, the housing of an electrical device, apparatus or instrument is metal. The metal shell is usually grounded in a protection manner, so that the person and equipment are protected from electric shock.
The existing power equipment adopts a protection grounding mode, and grounding caused by the fact that the safety of people and equipment is endangered by electrification of a metal shell of an electric device, a framework of a power distribution device, a line tower and the like is prevented. The existing power equipment metal shell electrification detection method utilizes an electroscope and the like, and has the problems that whether a metal shell is electrified or not can be known only when an electroscope is used or the electroscope is used, and whether the metal shell is electrified or not cannot be known at ordinary times.
Disclosure of Invention
In view of this, the invention provides a live detection device and power equipment, which are used for solving the technical problem that the existing electroscope is not intuitive enough in the way of detecting whether a metal shell of the power equipment is live.
In order to solve the technical problems, the first technical scheme adopted by the invention is as follows:
an electrified detection device comprising an electroluminescent panel and electrically conductive wires, the electroluminescent panel comprising:
a conductive magnet capable of being attached to a metal case of an electric power device;
an electroluminescence unit formed on the conductive magnet; and
the transparent electrode is formed on one side of the electroluminescent unit, which is far away from the electromagnet, and can transmit light;
one end of the conductive wire is connected to the transparent electrode, the other end of the conductive wire is grounded, an electric field can be formed between the conductive magnet and the transparent electrode after the metal shell is electrified, and the electric field can be used for exciting the electroluminescent unit to emit light, so that the electrified detection device can detect the metal shell.
In some embodiments of the electrification detecting means, the electrically conductive magnet is a flexible magnet.
In some embodiments of the electrification detecting device, the electroluminescence unit includes an electroluminescence layer, a first insulating layer, and a second insulating layer, the first insulating layer being formed between the electrically conductive magnet and the electroluminescence layer and being in contact with the electrically conductive magnet and the electroluminescence layer, respectively; the second insulating layer is formed between the electroluminescent layer and the transparent electrode and is respectively contacted with the electroluminescent layer and the transparent electrode, the second insulating layer is made of a transparent material, and the first insulating layer and the second insulating layer are used for protecting the electroluminescent layer from breakdown.
In some embodiments of the charged detection device, the first insulating layer and the second insulating layer are both polymer films.
In some embodiments of the charged detection device, the first insulating layer is formed on a side of the conductive magnet facing away from the metal casing by vacuum spin coating, the electroluminescent layer is formed on a side of the first insulating layer facing away from the conductive magnet by vacuum evaporation, the second insulating layer is formed on a side of the electroluminescent layer facing away from the first insulating layer by spin coating, and the transparent electrode is formed on a side of the second insulating layer facing away from the electroluminescent layer by plasma sputtering.
In some embodiments of the charged detection device, the electroluminescent layer has a thickness in the range of 500nm to 1000nm.
In some embodiments of the charged detection device, the first insulating layer has a thickness in the range of 100 microns to 500 microns; the thickness of the second insulating layer is 100-500 micrometers.
In some embodiments of the electrified detection device, the cross-sectional area of the conductive wire is not less than 25mm 2 。
In order to solve the technical problems, the invention adopts the following technical scheme:
an electric power apparatus includes the electrification detecting device described in the above embodiment, and further includes a metal casing and an electric device, the metal casing is covered on the electric device, and the conductive magnet is attached to the metal casing.
In some embodiments of the power equipment, the power equipment further includes a transparent cover, and the transparent cover is disposed on the electrification detecting device and connected to the metal housing.
The embodiment of the invention has at least the following beneficial effects:
the electrified detection device is applied to power equipment, can be used for detecting whether a metal shell of the power equipment is electrified in real time, and can remind workers of paying attention in a mode of light emitting of the electroluminescent unit.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural connection diagram of a live detection device and a part of electric power equipment in one embodiment.
Wherein: 1. an electrically conductive magnet; 2. a first insulating layer; 3. an electroluminescent layer; 4. a second insulating layer; 5. a transparent electrode; 6. a conductive wire; 100. a metal housing; 200. a transparent cover.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The existing power equipment adopts a protection grounding mode, and grounding caused by the fact that the safety of people and equipment is endangered by electrification of a metal shell of an electric device, a framework of a power distribution device, a line tower and the like is prevented. The term protective earth is intended to mean the metallic portion of the appliance (i.e., the portion of the metallic structure that is insulated from the electrically charged portion) that would normally be uncharged but could become charged after the insulating material is damaged or otherwise. A wire is reliably connected with the grounding body in a protection wiring mode. Ground protection is generally used in power supply systems in which the neutral point of a distribution transformer is not directly grounded (three-phase three-wire system) to ensure that the voltage to ground generated when electrical equipment leaks electricity due to insulation damage does not exceed a safe range.
Although the protection grounding exists, in daily life, the phenomena of electrification and electric leakage of the metal shell are common, and potential electric shock risks are brought to the personal safety of workers or other personnel after electrification or electric leakage. In addition, there are several problems with protecting the ground: firstly, whether the shell of the power equipment is electrified or not can not be intuitively displayed; secondly, the protection grounding only provides a safety measure, and when the protection grounding effect is not good, the equipment shell is still in a possibly electrified state. Therefore, whether the metal shell is electrified needs to be detected, the existing power equipment metal shell electrification detection method utilizes an electroscope and the like, and the existing power equipment metal shell electrification detection method has the problems that whether the metal shell is electrified or not can be known only when the electroscope is used for electroscopy or the electroscope is electrified, and whether the metal shell is electrified or not cannot be known at ordinary times.
The electrification detecting apparatus and the power equipment according to the present invention will be explained in further detail with reference to fig. 1.
In one embodiment of the charged detection device, the charged detection device comprises an electroluminescent panel comprising an electrically conductive magnet 1, an electroluminescent cell and a transparent electrode 5, and electrically conductive wires 6. The electromagnet 1 can be attached to the metal case 100 of the power equipment. The electroluminescent unit is formed on the conductive magnet 1. The transparent electrode 5 is formed on the side of the electroluminescent unit away from the electromagnet 1 and is capable of transmitting light. One end of the conductive wire 6 is connected to the transparent electrode 5, and the other end is grounded, the conductive wire 6 can form an electric field between the conductive magnet 1 and the transparent electrode 5 after the metal shell 100 is electrified, and the electric field can be used for exciting the electroluminescent unit to emit light, so that the electrified detection device can detect the metal shell 100.
In this embodiment, after the metal casing 100 is charged, an electric field can be formed between the conductive magnet 1 and the transparent electrode 5, and the electroluminescence unit can emit light under the electric field, so that the electroluminescence unit can serve as an indication to indicate that the metal casing 100 is charged at this time, and the transparent electrode 5 is transparent, so that light of the electroluminescence unit can be transmitted out to intuitively remind a worker of paying attention, thereby solving the technical problem that the conventional electroscope is not intuitive enough in a manner of detecting whether the metal casing of the power equipment is charged.
It can be understood that the electrification detecting device related in this embodiment can be directly and normally connected to the metal casing 100 of the power equipment through the conductive magnet 1, and the worker can attract the electrification detecting device to the metal casing 100 through a magnetic attraction manner before the power equipment is turned on, and connect the conductive wire 6 to the ground, so that the effect of monitoring whether the metal casing 100 is electrified at any time can be achieved, and after the metal casing 100 is electrified, the electroluminescence unit emits light to remind the worker.
In the foregoing embodiments, the type and structure of the conductive magnet 1 are not limited, and may be a common and conductive ndfeb powerful magnet, a samarium-cobalt magnet, an alnico magnet, an iron-chromium-cobalt magnet, or a conductive rubber. In a preferred embodiment of the electrical detector device, the electrically conducting magnet 1 is a flexible magnet. In this embodiment, the conductive magnet 1 may be an existing flexible magnet such as a rubber magnetic strip or a flexible magnetic film, and the flexibility of the conductive magnet can be flexibly installed according to the specific installation position and the shape or requirement of the metal housing 100.
In one embodiment of the charged detector device, the electroluminescent unit comprises an electroluminescent layer 3, a first insulating layer 2 and a second insulating layer 4, the first insulating layer 2 being formed between the electrically conductive magnet 1 and the electroluminescent layer 3 and being in contact with the electrically conductive magnet 1 and the electroluminescent layer 3, respectively. The second insulating layer 4 is formed between the electroluminescent layer 3 and the transparent electrode 5 and is respectively in contact with the electroluminescent layer 3 and the transparent electrode 5, the second insulating layer 4 is made of a transparent material, and the first insulating layer 2 and the second insulating layer 4 are used for protecting the electroluminescent layer 3 from breakdown. The first insulating layer 2 and the second insulating layer 4 are both polymer films. In the present embodiment, the electroluminescent layer 3 can be protected from breakdown by providing the first insulating layer 2 and the second insulating layer 4, and thus can be used for detecting a high voltage.
In an embodiment of the charged detector, the first insulating layer 2 is formed on the side of the conductive magnet 1 away from the metal casing 100 by vacuum spin coating, the electroluminescent layer 3 is formed on the side of the first insulating layer 2 away from the conductive magnet 1 by vacuum evaporation, the second insulating layer 4 is formed on the side of the electroluminescent layer 3 away from the first insulating layer 2 by spin coating, and the transparent electrode 5 is formed on the side of the second insulating layer 4 away from the electroluminescent layer 3 by plasma sputtering.
In this embodiment, a connection relationship between the structural members in the live detection device is specifically disclosed, and a further specific forming method is as follows:
the first insulating layer 2 may be made of polyethylene, polystyrene, or the like, and specifically, after the polyethylene, polystyrene, or the like is dissolved in a solvent, the solvent is xylene, or the like, during the dissolution, the solvent and the solute are stirred at a high temperature, and then spin-coating is performed, and during the vacuum spin-coating of the first insulating layer 2, the vacuum pumping is performed to 10 degrees -1 pa, after the spin coating, a drying treatment at a temperature of 80 ℃ for 5min is performed to form the first insulating layer 2, except that, before the spin coating, the surface of the electromagnet 1 is cleaned with deionized water by ultrasonic oscillation for at least 10min to remove impurities on the electromagnet 1, and then dried with nitrogen to dry. The thickness of the first insulating layer 2 is 100 micrometers-500 micrometers, and in particular, the thickness of the first insulating layer 2 can be 100 micrometers, 200 micrometers, 250 micrometers, 300 micrometers, 400 micrometers or 500 micrometers, and different thicknesses can adapt to detection of different voltage levels.
The electroluminescent layer 3 is mainly made of ZnS, cu fluorescent powder, phosphorus fluorescent powder and other electroluminescent materials, the luminescent materials are vapor-deposited on the first insulating layer 2 in a vacuum vapor deposition mode, characters with 'equipment electrification' or 'high-voltage danger' and the like are placed on the surface of the first insulating layer 2 before vapor deposition, the characters are removed after vapor deposition, and the vapor-deposited electroluminescent layer 3 is the character with 'equipment electrification' or 'high-voltage danger'. In addition, before vacuum evaporation, the surface of the first insulating layer 2 is cleaned by deionized water and ultrasonic oscillation, and then dried and dried by nitrogen. The thickness of the electroluminescent layer 3 is 500nm-1000nm, and the thickness of the electroluminescent layer 3 can be 500nm, 600nm, 700nm, 800nm, 900nm or 1000nm. The thicker the thickness, the more obvious the luminous effect and the better the warning effect.
The second insulating layer 4 may be made of polyethylene, polystyrene, or the like, and specifically, after the polyethylene, polystyrene, or the like is dissolved in a solvent, the solvent is xylene, or the like, and during the dissolution, the solvent and the solute are stirred at a high temperature, and then spin-coated, and after the second insulating layer 4 is spin-coated in vacuum, drying treatment is performed at a temperature of 80 ℃ for 5min, so as to form the second insulating layer 4, except that before the spin-coating, the surface of the electroluminescent layer 3 is cleaned with deionized water by ultrasonic oscillation for at least 10min, and impurities are removed, and then the surface is dried and dried with nitrogen. The thickness of the second insulating layer 4 is 100 micrometers-500 micrometers, and the thickness of the second insulating layer 4 can be 100 micrometers, 200 micrometers, 250 micrometers, 300 micrometers, 400 micrometers or 500 micrometers.
The transparent electrode 5 layer may be a transparent electrode 5 made of ITO or the like.
The first insulating layer 2 and the second insulating layer 4 have the same thickness. The thicker the first insulating layer 2 and the second insulating layer 4, the higher the value of the voltage that can be detected, and thus the more the electroluminescent layer 3 can be protected, the higher the voltage that can be detected. Specifically, when the thickness of the first insulating layer 2 and the second insulating layer 4 is 100 μm, the voltage that can be detected is 50V. When the thickness of the first insulating layer 2 and the second insulating layer 4 is 500 μm, the voltage that can be detected is 400V. When the thickness of the first insulating layer 2 and the second insulating layer 4 is 1000 μm, the voltage that can be detected is 800V.
In an embodiment of the charged detector device, the cross-sectional area of the conductive line 6 is not less than 25mm 2 . Specifically, the conductive wire 6 is led out from the transparent electrode 5 layer, the length of the conductive wire 6 is determined according to the distance between the live detection device and the ground, at least not less than 1m, and the conductive wire with a large cross-sectional area can bear larger current to avoid the damage of the conductive wire 6.
The invention also relates to electric equipment which comprises the electrified detection device in the previous embodiment, and further comprises a metal shell 100 and an electric device, wherein the metal shell 100 is covered on the electric device, and the conductive magnet 1 is adsorbed on the metal shell 100.
By combining the previous embodiment, the electrified detection device has high sensitivity, can emit light under a small voltage, and is high in flexibility and convenient to install, and all structural members are of film structures.
In this embodiment, by applying the electrification detecting device in the foregoing embodiment, whether the metal casing 100 is electrified or not can be monitored in real time, so that the attention of the worker can be reminded.
In an embodiment of the power equipment, the power equipment further comprises a transparent cover 200, and the transparent cover 200 covers the electrification detecting device and is connected with the metal shell 100. In the present embodiment, the transparent cover 200 is provided to protect the electrification detecting apparatus from the external environment. And because the transparent material, also can not delay the staff and look over.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An electrified detecting device, characterized in that the electrified detecting device comprises an electroluminescent panel and conductive wires, the electroluminescent panel comprising:
a conductive magnet capable of being attached to a metal case of an electric power device;
an electroluminescence unit formed on the conductive magnet; and
the transparent electrode is formed on one side of the electroluminescent unit, which is far away from the electromagnet, and can transmit light;
one end of the conductive wire is connected to the transparent electrode, the other end of the conductive wire is grounded, an electric field can be formed between the conductive magnet and the transparent electrode after the metal shell is electrified, and the electric field can be used for exciting the electroluminescent unit to emit light, so that the electrified detection device can detect the metal shell.
2. The electrification detecting device according to claim 1, wherein the electrically conductive magnet is a flexible magnet.
3. The charged detection device according to claim 1 or 2, wherein the electroluminescent unit comprises an electroluminescent layer, a first insulating layer and a second insulating layer, the first insulating layer being formed between the electrically conductive body and the electroluminescent layer and being in contact with the electrically conductive body and the electroluminescent layer, respectively; the second insulating layer is formed between the electroluminescent layer and the transparent electrode and is respectively contacted with the electroluminescent layer and the transparent electrode, the second insulating layer is made of a transparent material, and the first insulating layer and the second insulating layer are used for protecting the electroluminescent layer from breakdown.
4. The charged detection device according to claim 3, wherein the first insulating layer and the second insulating layer are each a polymer film.
5. The charged detection device according to claim 4, wherein the first insulating layer is formed on a side of the electrically conductive body facing away from the metal case by vacuum spin coating, the electroluminescent layer is formed on a side of the first insulating layer facing away from the electrically conductive body by vacuum evaporation, the second insulating layer is formed on a side of the electroluminescent layer facing away from the first insulating layer by spin coating, and the transparent electrode is formed on a side of the second insulating layer facing away from the electroluminescent layer by plasma sputtering.
6. The charged detection device according to claim 3, wherein the electroluminescent layer has a thickness in the range of 500nm to 1000nm.
7. The charged detection device of claim 3, wherein the thickness of the first insulating layer is in the range of 100 microns to 500 microns; the thickness of the second insulating layer is 100-500 microns.
8. The charged detection device according to claim 1, wherein a cross-sectional area of the conductive wire is not less than 25mm 2 。
9. An electric power apparatus, comprising the electrification detecting device according to any one of claims 1 to 8, further comprising a metal casing and an electric device, wherein the metal casing covers the electric device, and the conductive magnet is attached to the metal casing.
10. The power device according to claim 9, further comprising a transparent cover provided to the electrification detecting means and connected to the metal housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211418344.5A CN115541977A (en) | 2022-11-14 | 2022-11-14 | Electrified detection device and power equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211418344.5A CN115541977A (en) | 2022-11-14 | 2022-11-14 | Electrified detection device and power equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115541977A true CN115541977A (en) | 2022-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211418344.5A Pending CN115541977A (en) | 2022-11-14 | 2022-11-14 | Electrified detection device and power equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115541977A (en) |
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2022
- 2022-11-14 CN CN202211418344.5A patent/CN115541977A/en active Pending
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