CN214255062U - Lightning-protection discharging device for high-voltage transmission line - Google Patents
Lightning-protection discharging device for high-voltage transmission line Download PDFInfo
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- CN214255062U CN214255062U CN202120222496.2U CN202120222496U CN214255062U CN 214255062 U CN214255062 U CN 214255062U CN 202120222496 U CN202120222496 U CN 202120222496U CN 214255062 U CN214255062 U CN 214255062U
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Abstract
The utility model belongs to the technical field of high-voltage power transmission, and relates to a lightning protection discharging device of a high-voltage power transmission line, which comprises a strip-shaped insulating base body, the insulating base body is internally and axially provided with strip-shaped grooves, the strip-shaped grooves are provided with spherical grooves with inner diameters larger than that of the strip-shaped grooves at intervals, each spherical groove is internally provided with a metal ball, two ends of the insulating base body are respectively provided with a cylindrical electrode or a metal connecting seat or one end is provided with a cylindrical electrode and the other end is provided with a metal connecting seat, discharge holes penetrating through the side wall of the insulating base body are arranged in the middle of the strip-shaped grooves between the cylindrical electrodes and the metal balls, between the metal balls and between the metal balls and the metal connecting seats, the 'distance' of breakdown discharge can be selected according to the breakdown air discharge voltage, the breakdown burning resistance is good, the service life is long, the lightning protection device can effectively protect normal electricity for production and living of users, and is suitable for automatic lightning protection or overvoltage protection of high-voltage transmission lines of 35KV or higher or lower.
Description
Technical Field
The utility model belongs to the technical field of high-tension transmission, especially, relate to a high tension transmission line lightning protection discharge device.
Background
Due to special conditions such as lightning and the like, the voltage on the exposed high-voltage transmission line can be instantaneously increased by several times, the instantaneously increased voltage burns back the electric appliances, the short circuit or the open circuit of the circuit, the tripping of the transformer, the fire and other conditions occur, the normal production and the domestic electricity of users are directly influenced, although the discharging device used on the high-voltage transmission line is also used at present, the device has the defects of complex structure, high production cost, poor discharging performance and the like due to the structure, the principle, the materials and other reasons, and cannot be directly used for discharging after the ultrahigh voltage of the high-voltage transmission line.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can be on high tension transmission line because of thunderbolt or the instantaneous increase in voltage when, instantaneous discharge to standard voltage's high tension transmission line lightning protection discharge device.
The purpose of the utility model is solved like this:
high tension transmission line lightning protection discharge device, including the insulating base member of bar, the axial is provided with the bar groove in the insulating base member, and the interval is provided with the spherical groove that the internal diameter is greater than the bar groove on the bar groove, is provided with the metal ball in every spherical groove, and the both ends of insulating base member are provided with cylindricality electrode or metal connecting seat respectively or one end is provided with the cylindricality electrode, and the other end is provided with the metal connecting seat, is provided with the discharge hole that link up the insulating base member lateral wall between two parties on the bar groove between cylindricality electrode and the metal ball, between metal ball and the metal connecting seat.
Both end surfaces of the cylindrical electrode are spherical surfaces.
One end of the metal connecting seat is connected with the insulating base body, the other end of the metal connecting seat is provided with a connecting lug, and the connecting lug is provided with a connecting through hole or a threaded hole.
The metal connecting seat comprises a metal strip and a connecting joint, one end of the metal strip extends into the insulating base body, the other end of the metal strip is electrically connected with the connecting joint, the connecting joint is provided with a connecting lug, and the connecting lug is provided with a connecting through hole or a threaded hole.
The distances between the cylindrical electrode and the metal ball, between the metal ball and between the metal ball and the metal connecting seat are 5-300 mm.
The number of the metal balls is more than 2.
The outer side wall of the insulating base body is provided with conical boss-shaped convex columns at intervals, and the discharge hole is arranged on the convex column in the middle.
The insulation base body is internally and axially provided with a shaping strip, the shaping strip is positioned on one side of the cylindrical electrode, the metal ball and the metal connecting seat, radial (transverse) intervals are formed among the shaping strip, the cylindrical electrode, the metal ball and the metal connecting seat (namely, the shaping strip is not directly conductive), the radial (transverse) intervals are defined as axial or longitudinal relative to the length direction of the insulation base body 10, and one end of the shaping strip is connected with the metal connecting seat.
The shaping strip is made of more than one of plastic, metal and composite materials, and the insulating base body is made of rubber or silica gel or insulating plastic and other insulating materials, so that the shaping strip, the cylindrical electrode, the metal ball, the metal connecting seat and the insulating base body are not electrically connected with each other.
The cylindrical electrode, the metal ball, the metal connecting seat and the shaping strip are all formed on the insulating base body to form abutting connection.
The lightning protection discharging device of the high-voltage transmission line is integrally in a straight line shape or a C shape, and when the lightning protection discharging device of the high-voltage transmission line is integrally in the C shape, more than two radial mounting rods extend to the center of the C shape on the shaping strip or/and the insulating base body at intervals.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a sectional view of the present invention.
Fig. 3 is an enlarged view of a portion a of fig. 2.
Fig. 4 is an enlarged view of a portion B of fig. 2.
Fig. 5 is a front view of the present invention showing a change in the shape of a straight line to a C-shape.
Fig. 6 is a perspective view illustrating the present invention changing a straight line shape into a C shape.
Fig. 7 is a schematic diagram of a second C-shaped structure of the present invention.
Fig. 8 is a schematic view of a C-shaped structure of the present invention.
Detailed Description
The invention will be further described in the following with reference to specific embodiments thereof, with reference to the accompanying drawings, in which fig. 1-8:
the lightning protection discharge device for the high-voltage transmission line comprises a strip-shaped insulating base body 10, wherein strip-shaped grooves 32 are axially arranged in the insulating base body 10, spherical grooves 33 with the inner diameter larger than that of the strip-shaped grooves 32 are arranged on the strip-shaped grooves 32 at intervals, a metal ball 60 is arranged in each spherical groove 33, two ends of the insulating base body 10 are respectively provided with a cylindrical electrode 20 or a metal connecting seat 40 or one end of the insulating base body 10 is provided with the cylindrical electrode 20 (the two ends or one end can also be understood as an area close to two end faces, for example, the cylindrical electrode 20 in figures 7-8 can extend out from the side face, the cylindrical electrode 20 in figures 1-3 and 5-6 extends out from the end face), the other end of the insulating base body 10 is provided with the metal connecting seat 40, a discharge hole 31 penetrating through the side wall of the insulating base body 10 is arranged in the middle of the strip-shaped grooves 32 between the cylindrical electrode 20 and the metal ball 60, between the metal ball 60 and the metal connecting seat 40, the discharge hole 31 is used for guiding electric sparks out of the insulating base 10 when air between the cylindrical electrode 20 and the metal ball 60, air between the metal ball 60 and the metal ball 60, and air between the metal ball 60 and the metal connecting seat 40 are broken down and discharged.
As a further improvement of the present invention, both end surfaces of the cylindrical electrode 20 are spherical surfaces 21 and 22; the spherical surface 21 facilitates the formation of a point-through air discharge between the multiple angles and the corresponding metal ball 60.
As a further improvement of the present invention, the one end of the metal connecting seat 40 is connected to the insulating base 10, the other end is provided with a connecting lug 41, the connecting lug 41 is provided with a connecting hole 42 or a threaded hole, and the connecting hole 42 or the threaded hole on the connecting lug 41 is used for conveniently fixing and positioning the metal connecting seat.
As a further improvement of the present invention, the metal connecting seat 40 includes a metal strip 70 and a connecting joint 40, one end of the metal strip 70 extends into the insulating base 10, the other end is electrically connected to the connecting joint 40, the connecting joint 40 is provided with a connecting lug 41, the connecting lug 41 is provided with a connecting through hole 42 or a threaded hole, so that the metal connecting seat 40 is reliably connected.
As a further improvement of the present invention, the distance between the cylindrical electrode 20 and the metal ball 60, between the metal ball 60 and the metal ball 60, and between the metal ball 60 and the metal connecting seat 40 is 5-300mm, which can be determined according to the discharge voltage required by the user, and the larger the distance is, the higher the breakdown voltage is; depending on the material, the specific "breakdown discharge voltage" and the breakdown "distance" can be determined by simple "distance" measurements as well as "breakdown discharge voltage" measurements.
As a further improvement of the present invention, the number of the metal balls 60 is more than 2, generally 20 to 40, but may be 30 to 50 or 40 to 60, or more or less.
As a further improvement of the present invention, the outer sidewall of the insulating base 10 is provided with a tapered boss 30 at an interval, and the discharge hole 31 is disposed on the boss 30 at the center for increasing the strength of the insulating base 10 at the discharge hole 31.
As a further improvement of the present invention, a shaping strip 50 is axially disposed in the insulating base 10, the shaping strip 50 is located on one side of the cylindrical electrode 20, the metal ball 60 and the metal connecting seat 40, a distance (not directly conducting electricity) is formed between the shaping strip 50 and the cylindrical electrode 20, the metal ball 60 and the metal connecting seat 40, one end of the shaping strip 50 is connected to the metal connecting seat 40, and the shaping strip 50 can be integrally formed with the insulating base 10 as required, such as a straight line shape in fig. 1-2 and a C shape in fig. 5-8.
As a further improvement of the present invention, the above-mentioned shaping strip 50 is made of one or more materials selected from plastic, metal and composite material, on the premise that the shaping strip 50 can be bent into a certain shape and then shaped, and the insulating base 10 is made of insulating material such as rubber, silica gel or insulating plastic.
As a further improvement of the present invention, the cylindrical electrode 20, the metal ball 60, the metal connecting seat 40, and the shaping bar 50 are all formed on the insulating base 10 to form an abutting connection, so that there is no moving gap between them, the positioning is good, and the breakdown discharge voltage is accurate.
As a further improvement of the present invention, the lightning protection discharging device of the high voltage transmission line is in a shape of a straight line (fig. 1-2) or a shape of a C (fig. 5-8), when the lightning protection discharging device of the high voltage transmission line is in a shape of a C, the fixing strip 50 or/and the insulating base 10 are extended with more than two radial mounting rods 80 at intervals toward the center of the shape of the C (6 mounting rods 80 shown in fig. 7 are concentrated at the center of the shape of the C and are provided with mounting portions at the center, 2 mounting rods 80 shown in fig. 8 are provided and are led to the center from the end portions of the opening of the shape of the C in parallel and are provided with mounting positions), where all the mounting rods 80 correspond to the metal connecting seat 40, when the two end surfaces of the opening of the shape of the C are relatively close to each other, one end of the cylindrical electrode 20 can be extended from the side surface within the end surface of the opening of the insulating base 10 (see fig. 7-8), therefore, the cylindrical electrode 20 is convenient to be installed close to the end part of the high-voltage wire of the high-voltage transmission line, more metal balls 60 can be installed, and the instantaneous discharge effect is good.
The metal connecting seat 40 of the utility model is fixed on the power transmission tower, the column electrode 20 of the utility model is directly connected on the high voltage transmission line, or the distance between the column electrode 20 and the high voltage transmission line or between the column electrode 20 and the end part of the electric wire led out from the high voltage transmission line is set as a certain distance, the distance between the column electrode 20 and the metal ball 60, the distance between the metal ball 60 and the metal ball 60, and the distance between the metal ball 60 and the metal connecting seat 40 are set as certain rising specific voltage to be capable of puncturing the air in the distance, thereby realizing the effect of 'puncturing air discharge', when the voltage on the high voltage transmission line rises to the specific voltage, the high voltage automatically punctures the air in the distance to discharge, along with the increase of the time of puncturing air discharge, the voltage on the high voltage transmission line is gradually reduced, after the original normal transmission voltage is reached, the air is not punctured any more, and the discharging is automatically finished, the utility model discloses the distance that sets up is bigger, and the breakdown voltage is higher, and the size of this distance needs to be confirmed according to the user's needs, certainly, metal ball 60 (or called discharging ball) is more, and the air that forms between metal ball 60 and the metal ball 60 punctures the position of discharging more, and the effect of discharging step by step is better; additionally, because the utility model discloses a cylindricality electrode 20, metal ball 60, metal connecting seat 40's intensity is big, and it is good to be able to bear or endure to puncture the burnout nature, and long service life, the specially adapted meets the condition such as thunderbolt in the twinkling of an eye on 35KV or higher or lower high voltage transmission line and causes the transient voltage to rise too high instantaneous discharge step-down, can effectively protect normal production of user, domestic power consumption.
Product classification: 10KV specification: can be made into a straight line shape, a sickle shape, a C-shaped shape and the like, and has similar functional effects; ② 35KV standard: the lightning protection device can be made into a circular shape, two circular products are symmetrically placed up and down, the cylindrical electrodes 20 are installed at a certain discharge distance from the high-voltage transmission line, and when automatic lightning protection is carried out, the two circular products simultaneously puncture air to discharge, so that long-distance power-frequency follow current interrupts redundant voltage arc discharge, voltage is forced to drop sharply until the ground, safe constant-value voltage is ensured, and current and voltage are reliably transmitted; of course, according to the high-voltage transmission voltage of difference, set for between cylindricality electrode 20 and the metal ball 60, between metal ball 60 and the metal ball 60, different breakdown discharge distance between metal ball 60 and the metal connecting seat 40, the breakdown discharge distance is big more, and breakdown voltage is high more, of course, connect simultaneously the utility model discloses more discharge time is short more, and voltage stability is better.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions or technical features described in the foregoing embodiments can still be simply replaced or modified by similar techniques, and these simple replacements or modifications do not make the essence of the corresponding technical solutions depart from the spirit and essence of the technical solutions of the embodiments of the present invention, and still fall within the protection scope of the present invention.
Claims (9)
1. High tension transmission line lightning protection discharge device, including the insulating base member of bar, its characterized in that: the insulating base is internally and axially provided with a strip-shaped groove, the strip-shaped groove is provided with spherical grooves with inner diameters larger than that of the strip-shaped groove at intervals, a metal ball is arranged in each spherical groove, the two ends of the insulating base are respectively provided with a cylindrical electrode or a metal connecting seat or one end of the insulating base is provided with a cylindrical electrode, the other end of the insulating base is provided with a metal connecting seat, and a discharge hole penetrating through the side wall of the insulating base is arranged between the cylindrical electrode and the metal ball, between the metal ball and between the metal ball and the metal connecting seat on the strip-shaped groove in the middle.
2. The lightning protection discharging device of the high-voltage transmission line according to claim 1, characterized in that: the two end surfaces of the cylindrical electrode are spherical surfaces.
3. The lightning protection discharging device of the high-voltage transmission line according to claim 1, characterized in that: one end of the metal connecting seat is connected with the insulating base body, the other end of the metal connecting seat is provided with a connecting lug, and the connecting lug is provided with a connecting through hole or a threaded hole.
4. The lightning protection discharging device of the high-voltage transmission line according to claim 3, characterized in that: the metal connecting seat comprises a metal strip and a connecting joint, one end of the metal strip extends into the insulating base body, the other end of the metal strip is electrically connected with the connecting joint, the connecting joint is provided with a connecting lug, and the connecting lug is provided with a connecting through hole or a threaded hole.
5. The lightning protection discharging device of the high-voltage transmission line according to claim 4, characterized in that: the distance between the cylindrical electrode and the metal ball, the distance between the metal ball and the metal ball, and the distance between the metal ball and the metal connecting seat are 5-300 mm.
6. The lightning protection discharging device of the high-voltage transmission line according to claim 1, characterized in that: the outer side wall of the insulating base body is provided with conical boss-shaped protruding columns at intervals, and the discharge hole is arranged on the protruding columns in the middle.
7. The lightning protection discharging device of the high-voltage transmission line according to any one of claims 1 to 6, characterized in that: the insulation substrate in the axial be provided with the design strip, the design strip be located one side of cylindricality electrode, metal ball, metal connecting seat, the design strip and cylindricality electrode, metal ball, metal connecting seat between all interval have the interval, the one end and the metal connecting seat of design strip are connected.
8. The lightning protection discharging device of the high-voltage transmission line according to claim 7, characterized in that: the cylindrical electrode, the metal ball, the metal connecting seat and the shaping strip are all formed on the insulating base body to form abutting connection.
9. The lightning protection discharging device of the high-voltage transmission line according to claim 7, characterized in that: the lightning protection discharging device of the high-voltage transmission line is integrally in a straight line shape or a C shape, and when the lightning protection discharging device of the high-voltage transmission line is integrally in the C shape, more than two radial mounting rods extend to the center of the C shape on the shaping strip or/and the insulating base body at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120222496.2U CN214255062U (en) | 2021-01-22 | 2021-01-22 | Lightning-protection discharging device for high-voltage transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120222496.2U CN214255062U (en) | 2021-01-22 | 2021-01-22 | Lightning-protection discharging device for high-voltage transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214255062U true CN214255062U (en) | 2021-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120222496.2U Active CN214255062U (en) | 2021-01-22 | 2021-01-22 | Lightning-protection discharging device for high-voltage transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214255062U (en) |
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2021
- 2021-01-22 CN CN202120222496.2U patent/CN214255062U/en active Active
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