CN111308174A - Knife switch current display visualization system - Google Patents
Knife switch current display visualization system Download PDFInfo
- Publication number
- CN111308174A CN111308174A CN202010123944.3A CN202010123944A CN111308174A CN 111308174 A CN111308174 A CN 111308174A CN 202010123944 A CN202010123944 A CN 202010123944A CN 111308174 A CN111308174 A CN 111308174A
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- electric field
- field sensor
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- control box
- handle
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- 238000012800 visualization Methods 0.000 title claims abstract description 15
- 230000005684 electric field Effects 0.000 claims abstract description 83
- 230000000007 visual effect Effects 0.000 claims abstract description 10
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 14
- 229910001416 lithium ion Inorganic materials 0.000 claims description 14
- 230000017525 heat dissipation Effects 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000000741 silica gel Substances 0.000 claims description 9
- 229910002027 silica gel Inorganic materials 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 12
- 238000009434 installation Methods 0.000 abstract description 9
- 230000003211 malignant effect Effects 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005674 electromagnetic induction Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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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
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The invention discloses a disconnecting link current display visualization system which comprises an electric control box, wherein a threaded connecting seat is installed in the center of the bottom of the electric control box, a handle assembly is screwed and fixed on the threaded connecting seat, an installation plate is installed on one side of the top of the electric control box, a first electric field sensor and a second electric field sensor are respectively fixed on the top and the bottom of the installation plate through installation assemblies, and an audible and visual alarm is installed on the other side of the top of the electric control box. The invention has novel structure and ingenious conception, compares the electric field strength values measured by the first electric field sensor and the second electric field sensor in two times, and further judges whether an electric field source exists in the disconnecting link right above the measuring point and whether the electric field strength reaches the electrified standard, thereby realizing non-contact electricity testing, avoiding the influence of magnetic fields generated by other electrified components around on the accuracy of the test, preventing the occurrence of malignant misoperation, avoiding the damage of personnel and a power grid and greatly reducing the line fault times.
Description
Technical Field
The invention relates to the technical field of current detection, in particular to a disconnecting link current display visualization system.
Background
At present, a plurality of devices in a power grid can be connected into a distribution network and are realized by adding a disconnecting link to a load switch cabinet, the problem of inconsistency of a plurality of diagrams exists in the actual wiring condition, the field work is to stop the devices of users and pull a line disconnecting link, the operations are operated according to drawings on a single line diagram, but if the problems of the inconsistency of the diagrams exist, the loads are considered to be stopped, but the loads are not actually stopped, the condition of pulling the disconnecting link with the loads exists, so that a malignant misoperation event or a serious safety accident is caused, meanwhile, a transformer substation is tripped, and the line has large-area power failure.
According to the data, the current measuring method is mainly that a clamp meter measures current, but the situation that the current cannot be remotely monitored even if a disconnecting link has no current detecting device can not be realized, and misoperation can also occur. Therefore, it is necessary to design a knife switch current display visualization system.
Disclosure of Invention
Aiming at the situation and overcoming the defects of the prior art, the invention provides the disconnecting link current display visualization system which is novel in structure and ingenious in conception, and the electric field strength values measured by the first electric field sensor and the second electric field sensor are compared twice to judge whether an electric field source exists in the disconnecting link right above the measuring point or not and whether the electric field strength reaches the electrified standard or not, so that the non-contact electricity testing is realized, the influence of magnetic fields generated by other surrounding electrified components on the accuracy of the test is avoided, the occurrence of malignant misoperation can be prevented, the damage to personnel and a power grid is avoided, and the line fault frequency is greatly reduced.
In order to achieve the purpose, the invention provides the following technical scheme: the knife switch current display visualization system comprises an electric control box, wherein a threaded connection seat is installed at the center of the bottom of the electric control box, a handle assembly is fixedly screwed on the threaded connection seat, a mounting plate is installed on one side of the top of the electric control box, a first electric field sensor and a second electric field sensor are respectively fixed on the top and the bottom of the mounting plate through mounting assemblies, an audible and visual alarm is installed on the other side of the top of the electric control box, an LCD display screen is installed on the front of the electric control box, a control key is installed on one side of the LCD display screen, a circuit board is installed inside the electric control box, a signal processing module, a single chip microcomputer and an A/D conversion module are installed on the circuit board, a heat dissipation assembly in contact with the circuit board is installed inside the electric control box, and the first electric field sensor and the second electric field sensor, the output end of the signal processing module is electrically connected with the input end of the A/D conversion module, the output end of the A/D conversion module is electrically connected with the input end of the single chip microcomputer, and the output end of the single chip microcomputer is electrically connected with the LCD display screen and the audible and visual alarm.
Preferably, the heat dissipation assembly comprises heat dissipation fins, a heat conduction seat and a silica gel heat conduction layer, the heat conduction seat is installed on the inner wall of the bottom of the electric control box, a circuit board is installed inside the heat conduction seat, the silica gel heat conduction layer is filled in a gap between the circuit board and the heat conduction seat, and the heat dissipation fins connected with the heat conduction seat are installed on the outer walls of two corresponding sides of the electric control box.
Preferably, the installation component includes mount pad, through-hole, locating plate, bolt hole, set nut and set screw, the symmetry is installed on the mounting panel on the mount pad, the bolt hole that link up is seted up to the both sides that lie in the mount pad on the mounting panel, the spin joint is fixed with first electric field sensor and second electric field sensor on the mount pad, set up the through-hole that passes first electric field sensor and second electric field sensor on the locating plate, the set screw who passes the bolt hole is installed at the bottom both ends of locating plate, the spin joint is fixed with set nut on the set screw.
Preferably, the handle assembly comprises a handle, an anti-skid protective glove and a threaded rotating handle, the threaded rotating handle is installed at the center of the top of the handle, the threaded rotating handle is fixedly connected inside the threaded connecting seat in a rotating mode, and the anti-skid protective glove is fixedly sleeved on the handle in a sleeved mode.
Preferably, a lithium ion battery is installed inside the handle, a metal contact electrically connected with the lithium ion battery is installed inside the threaded rotating handle, a metal conductive seat electrically connected with the circuit board is installed inside the threaded connecting seat, and the metal conductive seat is matched with the metal contact for use.
Preferably, the bottom center of the handle is provided with a charging connector, and the charging connector is electrically connected with the input end of the lithium ion battery.
Preferably, the signal processing module is a filter circuit.
Preferably, the single chip microcomputer is a multifunctional single chip microcomputer with the model number of WT56F 216.
The invention has the beneficial effects that:
during testing, the first electric field sensor and the second electric field sensor are positioned under a disconnecting link, a magnetic field is formed around when current passes through the disconnecting link under a charged state, the first electric field sensor and the second electric field sensor are vertically close to each other, a current signal is generated under electromagnetic induction, after voltage values of the first electric field sensor and the second electric field sensor are collected, the singlechip firstly carries out difference operation on the voltage values of the first electric field sensor and the second electric field sensor, the difference value of the operation is compared with a preset threshold value, if the difference value is smaller than the preset value, the disconnecting link is judged to be non-electrified, if the difference value is larger than the preset value, the voltage value of the first electric field sensor is compared with an electrified threshold value, if the difference value is larger than the threshold value, the charged condition is met, namely the disconnecting link is judged to be electrified, if the difference value is smaller than the threshold value, whether the voltage value of the second electric field sensor meets the electrified threshold value or not is compared, if satisfy, then electrified condition satisfies, judge that the switch is electrified promptly, otherwise, judge that the switch is electroless, and singlechip control audible-visual annunciator reports to the police under the electrified state of switch, remind the user to notice, electric field strength value through first electric field sensor and second electric field sensor measurement, divide twice and compare, and then judge whether there is the electric field source in the switch directly over the measuring point, whether electric field strength reaches electrified standard, thereby realize non-contact electricity testing, avoid the magnetic field influence accuracy of test that other electrified components and parts produced on every side, can prevent malignant maloperation from taking place, avoid personnel, the electric wire netting receives the injury, the circuit fault number of times that also significantly reduces.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall plan structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the electrical control box of the present invention;
FIG. 3 is a block diagram of the single-chip microcomputer connection of the present invention;
FIG. 4 is a schematic plan view of the mounting assembly of the present invention;
FIG. 5 is a schematic plan view of the handle assembly of the present invention;
FIG. 6 is a schematic view of a lithium ion battery mounting structure according to the present invention;
FIG. 7 is a schematic view of a metal conductive seat mounting structure according to the present invention;
reference numbers in the figures: 1. an electronic control box; 2. an LCD display screen; 3. a control key; 4. a threaded connection base; 5. a handle assembly; 6. a heat dissipating component; 7. an audible and visual alarm; 8. mounting a plate; 9. mounting the component; 10. a first electric field sensor; 11. a second electric field sensor; 12. a circuit board; 13. a signal processing module; 14. a single chip microcomputer; 15. an A/D conversion module; 16. heat dissipation fins; 17. a heat conducting base; 18. a silica gel heat conduction layer; 19. a mounting seat; 20. a through hole; 21. positioning a plate; 22. bolt holes; 23. positioning a nut; 24. positioning a screw rod; 25. a grip; 26. anti-slip gloves; 27. a threaded knob; 28. a lithium ion battery; 29. a charging connector; 30. a metal contact; 31. a metal conductive seat.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings 1 to 7.
As shown in fig. 1 to 7, the present invention provides the following technical solutions: the knife switch current display visualization system comprises an electric control box 1, a threaded connection seat 4 is installed at the center of the bottom of the electric control box 1, a handle assembly 5 is fixedly screwed on the threaded connection seat 4, an installation plate 8 is installed at one side of the top of the electric control box 1, a first electric field sensor 10 and a second electric field sensor 11 are respectively fixed at the top and the bottom of the installation plate 8 through installation assemblies 9, an audible and visual alarm 7 is installed at the other side of the top of the electric control box 1, an LCD display screen 2 is installed at the front of the electric control box 1, a control key 3 is installed at one side of the LCD display screen 2, a circuit board 12 is installed inside the electric control box 1, a signal processing module 13, a single chip microcomputer 14 and an A/D conversion module 15 are installed on the circuit board 12, a heat dissipation assembly 6 in contact with the circuit board 12 is installed inside the electric control box 1, and the first electric, the output end of the signal processing module 13 is electrically connected to the input end of the a/D conversion module 15, the output end of the a/D conversion module 15 is electrically connected to the input end of the single chip microcomputer 14, the output end of the single chip microcomputer 14 is electrically connected to the LCD display 2 and the audible and visual alarm 7, during testing, the first electric field sensor 10 and the second electric field sensor 11 are positioned under the disconnecting link, when the disconnecting link is in a charged state, a current passes through the disconnecting link, a magnetic field is formed around the disconnecting link, the first electric field sensor 10 and the second electric field sensor 11 are vertically close to each other, a current signal is generated under electromagnetic induction, after the voltage values of the first electric field sensor 10 and the second electric field sensor 11 are collected, the single chip microcomputer 14 firstly performs a difference operation on the voltage values of the first electric field sensor 10 and the second electric field sensor 11, the difference value of the operation is compared with a preset threshold value, if the difference value, judging whether the knife switch is non-electrified, comparing the voltage value of the first electric field sensor 10 with an electrified threshold value when the difference value is greater than a preset value, if so, meeting the electrified condition, namely judging that the knife switch is electrified, if so, comparing whether the voltage value of the second electric field sensor 11 meets the electrified threshold value, if so, meeting the electrified condition, namely judging that the knife switch is electrified, otherwise, judging that the knife switch is non-electrified, controlling an audible and visual alarm 7 to give an alarm by a singlechip 14 in the electrified state of the knife switch to remind a user of paying attention, comparing the electric field strength values measured by the first electric field sensor 10 and the second electric field sensor 11 twice, further judging whether an electric field source exists in the knife switch right above a measuring point, judging whether the electric field strength reaches the electrified standard, thereby realizing non-contact electricity testing and avoiding the influence of the magnetic field generated by other peripheral electrified components on the test accuracy, the method can prevent malignant misoperation, avoid personnel and power grid damage and greatly reduce the line fault frequency.
The heat dissipation assembly 6 comprises heat dissipation fins 16, a heat conduction seat 17 and a silica gel heat conduction layer 18, the heat conduction seat 17 is installed to the bottom inner wall of the electronic control box 1, the internally mounted of the heat conduction seat 17 is provided with a circuit board 12, and the gap between the circuit board 12 and the heat conduction seat 17 is filled with the silica gel heat conduction layer 18, the heat dissipation fins 16 connected with the heat conduction seat 17 are installed on the outer walls of the two corresponding sides of the electronic control box 1, the heat conduction seat 17 and the silica gel heat conduction layer 18 are arranged, the heat generated in the working process of components on the circuit board 12 is transmitted to the heat dissipation fins 16, the heat dissipation is carried out quickly, so that the temperature inside the electronic control box 1.
The internally mounted of handle 25 has lithium ion battery 28, the internally mounted of screw thread turning handle 27 has metal contact 30 with lithium ion battery 28 electric connection, the internally mounted of threaded connection seat 4 has the electrically conductive seat 31 of metal with circuit board 12 electric connection, and the electrically conductive seat 31 of metal uses with the cooperation of metal contact 30, be provided with lithium ion battery 28 in the inside of handle 25, and carry out electric connection through the electrically conductive seat 31 of metal contact 30 and the metal that set up in screw thread turning handle 27 and threaded connection seat 4 inside, not only normal work electric quantity supply has been guaranteed, and be convenient for quick replacement lithium ion battery 28, promote open-air duration.
The center of the bottom of the handle 25 is provided with a charging connector 29, and the charging connector 29 is electrically connected with the input end of the lithium ion battery 28, so that the lithium ion battery 28 can be charged conveniently.
The signal processing module 13 is a filter circuit, a large amount of electromagnetic interference exists in the measurement environment, a large amount of noise can be contained in the signals output by the first electric field sensor 10 and the second electric field sensor 11, signal distortion is caused in severe cases, and measurement accuracy is affected.
The singlechip 14 is a multifunctional singlechip with the model of WT56F216, and has an 8052 singlechip kernel of 1T, high noise resistance, a Flash memory of 16 Kx 8 and a random data memory of 384 x 8.
When the invention is used and tested, the first electric field sensor 10 and the second electric field sensor 11 are positioned under the disconnecting link, when the disconnecting link is in a charged state, namely current passes through, a magnetic field is formed around, the first electric field sensor 10 and the second electric field sensor 11 are vertically close to each other, a current signal is generated under electromagnetic induction, after voltage values of the first electric field sensor 10 and the second electric field sensor 11 are collected, the singlechip 14 firstly carries out difference operation on the voltage values of the first electric field sensor 10 and the second electric field sensor 11, the difference value of the operation is compared with a preset threshold value, if the difference value is smaller than the preset value, the disconnecting link is judged to be non-electrified, when the difference value is larger than the preset value, the voltage value of the first electric field sensor 10 is compared with the charged threshold value, if the difference value is larger than the threshold value, the charged condition is met, namely, the disconnecting link is judged to be charged, if the difference value is smaller than the threshold value, whether the voltage value of the second electric field sensor 11 meets the electrified threshold value or not is compared, if yes, the electrified condition is met, namely the disconnecting link is judged to be electrified, otherwise, the disconnecting link is judged to be non-electrified, the singlechip 14 controls the audible and visual alarm 7 to give an alarm under the electrified state of the disconnecting link, the user is reminded of paying attention, the electric field strength values measured by the first electric field sensor 10 and the second electric field sensor 11 are compared twice, whether an electric field source exists in the disconnecting link right above a measuring point or not is judged, whether the electric field strength reaches the electrified standard or not is judged, non-contact electricity testing is achieved, the magnetic field generated by other peripheral electrified components is prevented from influencing the accuracy of testing, malignant misoperation can be prevented, personnel and the power grid are prevented from being damaged, and the line fault times are greatly reduced;
through the heat conduction seat 17 and the silica gel heat-conducting layer 18 that set up, transmit the heat that produces in the component working process on the circuit board 12 to heat radiation fins 16, thereby dispel the heat fast and can the effectual inside temperature of automatically controlled box 1 that reduces to the life of components and parts on the effectual promotion circuit board 12.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. Visual system of switch current display, including automatically controlled box (1), its characterized in that: a threaded connecting seat (4) is installed at the center of the bottom of the electric control box (1), and a handle assembly (5) is fixedly screwed on the threaded connecting seat (4); a mounting plate (8) is mounted on one side of the top of the electric control box (1), and a first electric field sensor (10) and a second electric field sensor (11) are fixed to the top and the bottom of the mounting plate (8) through mounting assemblies (9) respectively; an audible and visual alarm (7) is mounted on the other side of the top of the electric control box (1), an LCD display screen (2) is mounted on the front face of the electric control box (1), and a control key (3) is mounted on one side of the LCD display screen (2); the internally mounted of automatically controlled box (1) has circuit board (12), install signal processing module (13), singlechip (14) and AD conversion module (15) on circuit board (12), the internally mounted of automatically controlled box (1) has radiator unit (6) with circuit board (12) contact, the input of the equal electric connection signal processing module (13) of first electric field sensor (10) and second electric field sensor (11), the input of the output electric connection AD conversion module (15) of signal processing module (13), the input of the output electric connection singlechip (14) of AD conversion module (15), the output electric connection LCD display screen (2) of singlechip (14) and audible-visual annunciator (7).
2. The knife-switch current display visualization system according to claim 1, characterized in that: the heat dissipation assembly (6) comprises heat dissipation fins (16), a heat conduction seat (17) and a silica gel heat conduction layer (18), the heat conduction seat (17) is installed on the inner wall of the bottom of the electric control box (1), a circuit board (12) is installed inside the heat conduction seat (17), and the silica gel heat conduction layer (18) is filled in a gap between the circuit board (12) and the heat conduction seat (17); and the outer walls of the two sides of the electric control box (1) are provided with radiating fins (16) connected with the heat conducting seat (17).
3. The knife-switch current display visualization system according to claim 1, characterized in that: the mounting assembly (9) comprises a mounting seat (19), a through hole (20), a positioning plate (21), a bolt hole (22), a positioning nut (23) and a positioning screw (24); the mounting seat (19) is arranged on the mounting plate (8), and the two sides of the mounting plate (8) positioned on the mounting seat (19) are provided with the through bolt holes (22); connect on mount pad (19) to be fixed with first electric field sensor (10) and second electric field sensor (11), seted up on locating plate (21) and passed first electric field sensor (10) with second electric field sensor (11) through-hole (20), the both ends of locating plate (21) bottom are installed and are passed bolt hole (22) positioning screw (24), positioning screw (24) top spin connects fixedly there is positioning nut (23).
4. The knife-switch current display visualization system according to claim 1, characterized in that: handle subassembly (5) are including handle (25), anti-skidding protective gloves (26) and screw thread swing handle (27), the top center department of handle (25) installs screw thread swing handle (27), screw thread swing handle (27) connect soon to fix the inside at threaded connection seat (4), cup joint on handle (25) and be fixed with anti-skidding protective gloves (26).
5. The knife-switch current display visualization system according to claim 4, wherein: the handle (25) is internally provided with a lithium ion battery (28), the thread turning handle (27) is internally provided with a metal contact (30) electrically connected with the lithium ion battery (28), the thread connecting seat (4) is internally provided with a metal conductive seat (31) electrically connected with the circuit board (12), and the metal conductive seat (31) is matched with the metal contact (30).
6. The knife-switch current display visualization system according to claim 4, wherein: the bottom center of handle (25) is located to install and is charged joint (29), charge joint (29) electric connection lithium ion battery (28)'s input.
7. The knife-switch current display visualization system according to claim 1, characterized in that: the signal processing module (13) is a filter circuit.
8. The knife-switch current display visualization system according to claim 1, characterized in that: the single chip microcomputer (14) is a multifunctional single chip microcomputer with the model of WT56F 216.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010123944.3A CN111308174A (en) | 2020-02-27 | 2020-02-27 | Knife switch current display visualization system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010123944.3A CN111308174A (en) | 2020-02-27 | 2020-02-27 | Knife switch current display visualization system |
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| CN111308174A true CN111308174A (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010123944.3A Pending CN111308174A (en) | 2020-02-27 | 2020-02-27 | Knife switch current display visualization system |
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| CN (1) | CN111308174A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117192233A (en) * | 2023-08-30 | 2023-12-08 | 南方电网数字电网研究院有限公司 | Non-contact differential electric field sensor |
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| CN106525105A (en) * | 2016-10-31 | 2017-03-22 | 孝感华工高理电子有限公司 | Sensor automatic testing device |
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Application publication date: 20200619 |