CN216926911U - Lightning arrester on-line monitor - Google Patents
Lightning arrester on-line monitor Download PDFInfo
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- CN216926911U CN216926911U CN202220206942.5U CN202220206942U CN216926911U CN 216926911 U CN216926911 U CN 216926911U CN 202220206942 U CN202220206942 U CN 202220206942U CN 216926911 U CN216926911 U CN 216926911U
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- connecting rod
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- resistance valve
- conductive structure
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Abstract
The utility model discloses an online monitor of a lightning arrester, which comprises a monitor main body and an insulator, wherein the insulator comprises an insulating main body, a first conductive structure, a resistance valve block, a wire outlet connecting rod and a wire inlet connecting rod, the resistance valve block is arranged in the insulating main body, one end of the wire inlet connecting rod and one end of the wire outlet connecting rod are respectively electrically connected with the wire inlet side and the wire outlet side of the resistance valve block, the other ends of the wire inlet connecting rod and the wire outlet connecting rod extend out of the insulating main body, the first conductive structure is electrically connected with the wire inlet side of the resistance valve block, the monitor main body comprises a shell and a second conductive structure, the insulator is detachably connected with the shell through the wire outlet connecting rod, and the first conductive structure and the second conductive structure can be correspondingly conducted. According to the online arrester monitor, the resistance valve plate is arranged in the detachable insulator, when the resistance valve plate is damaged, the insulator can be directly replaced on site, convenience and rapidness are realized, and the maintenance cost can be effectively reduced.
Description
Technical Field
The utility model relates to the technical field of lightning arrester monitoring, in particular to an online lightning arrester monitor.
Background
An on-line monitor for lightning arrester (leakage current and action recorder) is an instrument matched with zinc oxide lightning arrester in high-voltage AC power system, and is connected in series with the grounding loop of lightning arrester. The working principle is as follows: when lightning stroke of the lightning arrester acts, discharge current flows through the nonlinear resistor valve plate, and the voltage drop on the valve plate supplies power to a discharge counting circuit in the monitor to finish discharge counting. The existing lightning arrester online monitor generally arranges a nonlinear resistance valve piece inside the monitor and reliably contacts with a metal conductive shell of the monitor. However, if the lightning strike discharge current is large or after multiple discharge current surges, the nonlinear resistance valve plate may be damaged, the monitor cannot realize the lightning strike counting function, and at this time, if the resistance valve plate needs to be replaced, the monitor can be replaced only by disassembling the monitor shell. However, the monitor has very strict sealing requirements, and disassembly and replacement are difficult to perform at a use site, so if the resistance valve plate is damaged, the whole monitor is usually replaced, and thus, great cost waste is caused.
In view of the above, the inventor of the present application invented an on-line arrester monitor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an online arrester monitor which is simple in structure, reasonable in design and capable of realizing rapid replacement of an insulator with a built-in resistance valve plate.
In order to achieve the purpose, the utility model adopts the following technical scheme: an online monitor of an arrester comprises a monitor main body and an insulator, wherein the insulator comprises an insulating main body, a first conductive structure, a resistance valve block, a conductive wire outlet connecting rod and a wire inlet connecting rod, the resistance valve block is arranged in the insulating main body, the resistance valve block comprises a wire inlet side and a wire outlet side, one end of the wire inlet connecting rod and one end of the wire outlet connecting rod are respectively electrically connected with the wire inlet side and the wire outlet side of the resistance valve block, the other ends of the wire inlet connecting rod and the wire outlet connecting rod extend out of the insulating main body, the first conductive structure is electrically connected with the wire inlet side of the resistance valve block, the monitor main body comprises a conductive shell and a second conductive structure communicated with a discharge counting circuit in the monitor main body, the insulator is detachably connected with the shell through the wire outlet connecting rod, and the wire outlet connecting rod is fixedly connected with the shell, the first conductive structure and the second conductive structure are correspondingly conducted.
Furthermore, the first conducting structure comprises a first conducting ring positioned outside the insulating main body, the first conducting ring is electrically connected with the inlet wire side of the resistance valve plate through a conductor, and the second conducting structure comprises a second conducting ring arranged on the surface of the shell and corresponding to the first conducting ring.
Furthermore, the second conducting ring is provided with a plurality of raised contact spring pieces along the circumferential direction.
Furthermore, the contact spring pieces are all in an inverted V shape.
Furthermore, the wire inlet side and the wire outlet side of the resistance valve plate are respectively provided with a first electrode and a second electrode, the wire inlet connecting rod and the wire outlet connecting rod are respectively electrically connected with the resistance valve plate through the first electrode and the second electrode, and the first conductive structure is electrically connected with the first electrode.
Further, the insulating main body comprises a mounting end, the end of the outgoing line connecting rod extends out of the insulating main body from the mounting end of the insulating main body, the shell is provided with a protruding portion matched with the mounting end for mounting, and a sealing ring is arranged between the mounting end and the protruding portion.
Further, the bulge is provided with an installation ring groove, the installation end is provided with an installation convex ring correspondingly arranged with the installation ring groove, the installation ring groove is positioned on the inner side of the sealing ring, and the second conductive structure is positioned on the inner side of the installation ring groove.
Further, the incoming line connecting rod and the outgoing line connecting rod are both screws, the shell is provided with a threaded hole, and the outgoing line connecting rod is in threaded connection with the threaded hole.
After adopting the technical scheme, compared with the prior art, the utility model has the following advantages:
according to the online monitor for the lightning arrester, the resistance valve plate is arranged in the insulator, and meanwhile, the insulator is designed into an integrated structure convenient to assemble and disassemble, so that when the resistance valve plate is damaged due to lightning discharge, the function of the online monitor for the lightning arrester can be recovered by directly replacing a new insulator, the online monitor for the lightning arrester is convenient and quick, the site replacement of the monitor can be realized, the maintenance cost is effectively reduced, and meanwhile, the monitor can be quickly recovered for use.
Drawings
FIG. 1 is a schematic view of an on-line arrester monitor according to an embodiment of the utility model;
FIG. 2 is a schematic view of a monitor body according to an embodiment of the present invention;
FIG. 3 is a schematic view of an insulator mounting end according to an embodiment of the utility model;
fig. 4 is a schematic cross-sectional view of an insulator according to an embodiment of the present invention.
Description of reference numerals:
10-the main body of the monitor,
11-a housing, 111-a threaded hole,
12-a second conductive structure, 121-a second conductive ring, 122-a contact spring,
13-a convex part, 131-a mounting ring groove,
14-a sealing ring, which is provided with a sealing ring,
20-an insulator, wherein the insulator is a hollow insulator,
21-insulating body, 211-mounting convex ring,
22-a first conductive structure, 221-a first conductive ring, 222-a conductor,
23-resistance valve plate, 231-first electrode, 232-second electrode,
24-a wire outlet connecting rod, wherein,
25-inlet wire connecting rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the apparatus or element of the present invention must have a specific orientation, and thus, should not be construed as limiting the present invention.
Examples
The utility model discloses an online monitor of an arrester, which is matched with the drawings of fig. 1 to 4, and comprises a monitor main body 10 and an insulator 20, wherein the insulator 20 comprises an insulating main body 21, a first conductive structure 22, a resistance valve sheet 23, a conductive outgoing line connecting rod 24 and an incoming line connecting rod 25, the resistance valve sheet 23 is arranged in the insulating main body 21, the resistance valve sheet 23 comprises an incoming line side and an outgoing line side, one ends of the incoming line connecting rod 25 and the outgoing line connecting rod 24 are respectively electrically connected with the incoming line side and the outgoing line side of the resistance valve sheet 23, the other ends of the incoming line connecting rod 25 and the outgoing line connecting rod 24 extend out of the insulating main body 21, the first conductive structure 22 is electrically connected with the incoming line side of the resistance valve sheet 23, the monitor main body 10 comprises a conductive shell 11 and a second conductive structure 12 communicated with a discharge counting circuit in the monitor main body 10, the insulator 20 is detachably connected with the shell 11 through a wire outlet connecting rod 24, and when the wire outlet connecting rod 24 is fixedly connected with the shell 11, the first conductive structure 22 is correspondingly conducted with the second conductive structure 12.
The monitor comprises a monitor main body 10, a circuit board is arranged in a shell 11 of the monitor main body 10, a discharge counting circuit is arranged on the circuit board, the shell 11 is a metal shell 11, and a display screen is arranged on the shell 11. The end that inlet wire connecting rod 25 stretches out insulating main part 21 is connected with the arrester, the tip that outlet wire connecting rod 24 stretches out insulating main part 21 then is used for dismantling with casing 11 and is connected, and because outlet wire connecting rod 24 all can electrically conduct with casing 11, and casing 11 is ground connection again, then outlet wire connecting rod 24 realizes dismantling with casing 11 on the one hand and is connected, also through being connected with casing 11 and ground connection simultaneously. Specifically, the wire inlet connecting rod 25 and the wire outlet connecting rod 24 are both screws, the shell 11 is provided with a threaded hole 111, and the wire outlet connecting rod 24 is in threaded connection with the threaded hole 111. Through threaded connection, the operation is convenient during replacement, and the insulator 20 and the shell 11 can be replaced quickly. Furthermore, a plurality of metal elastic pieces (not shown in the figure) are designed on the inner wall of the housing 11 along the threaded hole 111, and when the wire connecting rod 24 is not installed in the threaded hole 111, the metal elastic pieces close the threaded hole 111; when the outgoing line connecting rod 24 and the threaded hole 111 are installed, the end of the outgoing line connecting rod 24 pushes the metal elastic sheet open towards the inside of the shell 11, and after the outgoing line connecting rod 24 is screwed out, the metal elastic sheet resets under the elastic action of the metal elastic sheet to seal the threaded hole 111, so that the situation that outside air enters the inside of the shell 11 when the insulator 20 is replaced can be avoided.
Wherein, insulator 20 formula design as an organic whole, the production is sold alone, so makes things convenient for its change to maintain, and the integral type design is convenient for insulator 20's quick replacement also. Specifically, the insulation main body 21 is formed by injection molding of epoxy resin, and is formed by integrally injection molding after the first conductive structure 22, the resistance valve sheet 23, the outgoing line connecting rod 24 and the incoming line connecting rod 25 are placed in an injection mold. The insulator 20 is formed by injection molding, so that mass production is facilitated, and meanwhile, no gap exists between the insulating main body 21 and other parts, and the sealing performance is effectively guaranteed.
The wire inlet side and the wire outlet side of the resistance valve plate 23 are respectively provided with a first electrode 231 and a second electrode 232, the wire inlet connecting rod 25 and the wire outlet connecting rod 24 are respectively electrically connected with the resistance valve plate 23 through the first electrode 231 and the second electrode 232, and the first conductive structure 22 is electrically connected with the first electrode 231. The first electrode 231 and the second electrode 232 are both electrode plates.
As shown in fig. 2 to 4, the first conductive structure 22 includes a first conductive ring 221 located outside the insulating main body 21, the first conductive ring 221 is electrically connected to the wire inlet side of the resistance valve sheet 23 through a conductor 222, and the second conductive structure 12 includes a second conductive ring 121 disposed on the surface of the housing 11 and corresponding to the first conductive ring 221. Specifically, the first electrode 231, the first conductive ring 221 and the conductor 222 are integrally formed. When the outgoing line connecting rod 24 is fixedly connected with the housing 11, the first conductive ring 221 and the second conductive ring 121 are correspondingly contacted and conducted, so that the resistance valve plate 23 is conducted with the discharge counting circuit.
Specifically, the second conductive ring 121 is provided with a plurality of raised contact spring pieces 122 along the circumferential direction thereof, and the contact spring pieces 122 are all in an inverted V shape. The arrangement of the contact spring 122 can ensure reliable conduction between the first conductive ring 221 and the second conductive ring 121 when the outgoing line connecting rod 24 is fixedly connected to the housing 11, thereby ensuring the performance of the monitor.
Insulating main part 21 includes the installation end, the tip of the connecting rod 24 of being qualified for the next round of competitions in insulating main part 21's installation end stretches out insulating main part 21, casing 11 is equipped with the bellying 13 of matcing the installation with the installation end, be equipped with sealing washer 14 between installation end and the bellying 13.
The protruding portion 13 is provided with an installation ring groove 131, the installation end be equipped with the installation bulge loop 211 that installation ring groove 131 corresponds the setting, installation ring groove 131 is located sealing washer 14 is inboard, just second conductive structure 12 is located the inboard of installation ring groove 131.
Specifically, bellying 13 is cylindricly, and its top surface is equipped with one and is annular seal groove, sealing washer 14 inlays to be established with this seal groove in, and sealing washer 14 salient in the seal groove notch, so can guarantee the leakproofness of insulating main part 21 installation end and bellying 13 up to now. The inboard of seal groove is equipped with installation annular groove 131, and when installation insulator 20, the installation bulge loop 211 of insulating main part 21 installation end corresponds the installation with installation annular groove 131, realizes that insulator 20 can fix a position fast. The inner side of the mounting ring groove 131 is provided with a circular groove, the second conductive ring 121 is embedded in the circular groove, a positioning column is arranged in the circular groove, and the second conductive ring 121 is provided with a positioning hole matched with the positioning column, so that the mounting and the fixing are facilitated. Wherein, a threaded hole 111 for installing and fixing the outlet connecting rod 24 penetrates through the boss 13.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. An arrester on-line monitoring ware which characterized in that: comprises a monitor main body and an insulator, wherein the insulator comprises an insulating main body, a first conductive structure, a resistance valve plate, a conductive outgoing line connecting rod and a conductive incoming line connecting rod, the resistance valve plate is arranged in the insulation main body and comprises a wire inlet side and a wire outlet side, one end of the wire inlet connecting rod and one end of the wire outlet connecting rod are respectively electrically connected with the wire inlet side and the wire outlet side of the resistance valve plate, the other ends of the wire inlet connecting rod and the wire outlet connecting rod extend out of the insulating main body, the first conductive structure is electrically connected with the wire inlet side of the resistance valve plate, the monitor main body comprises a conductive shell and a second conductive structure communicated with a discharge counting circuit in the monitor main body, the insulator is detachably connected with the shell through a wire outlet connecting rod, and the outlet connecting rod is fixedly connected with the shell, and the first conductive structure is correspondingly conducted with the second conductive structure.
2. An on-line arrester monitor as claimed in claim 1, wherein: the first conducting structure comprises a first conducting ring located outside the insulating main body, the first conducting ring is electrically connected with the wire inlet side of the resistance valve plate through a conductor, and the second conducting structure comprises a second conducting ring located on the surface of the shell and corresponding to the first conducting ring.
3. An on-line arrester monitor as claimed in claim 2, wherein: the second conducting ring is provided with a plurality of raised contact elastic sheets along the circumferential direction.
4. An on-line arrester monitor as claimed in claim 3, wherein: the contact spring pieces are all in an inverted V shape.
5. An on-line arrester monitor as claimed in any one of claims 1 to 4, wherein: the wire inlet side and the wire outlet side of the resistance valve plate are respectively provided with a first electrode and a second electrode, the wire inlet connecting rod and the wire outlet connecting rod are respectively electrically connected with the resistance valve plate through the first electrode and the second electrode, and the first conductive structure is electrically connected with the first electrode.
6. An on-line arrester monitor as claimed in claim 1, wherein: the insulating main body comprises a mounting end, the end part of the outgoing line connecting rod extends out of the insulating main body from the mounting end of the insulating main body, the shell is provided with a protruding part matched with the mounting end for mounting, and a sealing ring is arranged between the mounting end and the protruding part.
7. An on-line arrester monitor as claimed in claim 6, wherein: the bellying is equipped with an installation annular, the installation end be equipped with the installation bulge loop that the installation annular corresponds the setting, the installation annular is located the sealing washer is inboard, just second conductive structure is located the inboard of installation annular.
8. An on-line arrester monitor as claimed in claim 1, wherein: the incoming line connecting rod and the outgoing line connecting rod are both screws, the shell is provided with a threaded hole, and the outgoing line connecting rod is in threaded connection with the threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220206942.5U CN216926911U (en) | 2022-01-25 | 2022-01-25 | Lightning arrester on-line monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220206942.5U CN216926911U (en) | 2022-01-25 | 2022-01-25 | Lightning arrester on-line monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216926911U true CN216926911U (en) | 2022-07-08 |
Family
ID=82265889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220206942.5U Active CN216926911U (en) | 2022-01-25 | 2022-01-25 | Lightning arrester on-line monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216926911U (en) |
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2022
- 2022-01-25 CN CN202220206942.5U patent/CN216926911U/en active Active
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