CN216014970U - Composite outer sleeve lightning arrester with inverted pyramid core body - Google Patents
Composite outer sleeve lightning arrester with inverted pyramid core body Download PDFInfo
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- CN216014970U CN216014970U CN202122072801.7U CN202122072801U CN216014970U CN 216014970 U CN216014970 U CN 216014970U CN 202122072801 U CN202122072801 U CN 202122072801U CN 216014970 U CN216014970 U CN 216014970U
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- silica gel
- inverted pyramid
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Abstract
The utility model relates to a compound overcoat arrester with inverted pyramid core, include the silica gel overcoat and locate inside last electrode, resistance piece group and the bottom electrode of silica gel overcoat, and go up electrode and bottom electrode branch and locate resistance piece group both ends, silica gel overcoat upper end be equipped with the bolt with go up electrode connection, lower extreme be equipped with down the bolt with the bottom electrode is connected, resistance piece group includes a plurality of resistance pieces that descend the diameter to degressive in proper order by last, go up the whole outside parcel winding area of electrode, resistance piece group and bottom electrode. The utility model discloses each resistance card diameter in the resistance card group steadilys decrease gradually, and the high-pressure side adopts major diameter resistance card, makes the arrester can bear higher voltage, avoids damaging.
Description
Technical Field
The utility model relates to a compound overcoat arrester with inverted pyramid core.
Background
The lightning arrester product is suitable for places such as transmission lines, transformer substations, industrial and mining enterprises, and the like, and has good through-flow capacity, sealing performance and the like, all the resistance cards installed in the existing product have the same size and the whole shape is a cylindrical structure, for example, the Chinese utility model patent with the publication number of CN207925196U discloses a lightning arrester core body, the whole resistance card is columnar and the outer side is positioned around the annular rubber belt, and the Chinese utility model with the publication number of CN208444693U discloses a high-altitude arrester, the resistance sheets are arranged in the middle of the lightning arrester in a laminated way, the winding layer and the silicon rubber insulating sleeve are tightly wrapped on the periphery of the resistance sheets which are connected in series to form a solid structure, and as the Chinese utility model patent with the publication number of CN208045205U, a novel lightning protection device of 10kv overhead distribution lines is disclosed, the high-capacity resistor disc and the small-capacity resistor disc are identical in diameter and are also stacked into a column shape. The resistor disc inside the lightning arrester is designed into a cylindrical structure, which can meet the design requirement, but is easily damaged under the influence of factors such as overvoltage and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a compound overcoat arrester with inverted pyramid core, each resistance card diameter in the resistance card group steadilys decrease gradually, and the high-pressure side adopts the major diameter resistance card, makes the arrester can bear higher voltage, avoids damaging.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a compound overcoat arrester with inverted pyramid core, includes the silica gel overcoat and locates inside last electrode, the piece group of resistance and the bottom electrode of silica gel overcoat, and go up electrode and bottom electrode branch and locate the piece group both ends, silica gel overcoat upper end be equipped with the bolt with go up electrode connection, lower extreme be equipped with down the bolt with the bottom electrode is connected, the piece group includes a plurality of by last descending diameter resistance card in proper order down, go up electrode, piece group and the whole outside parcel winding area of bottom electrode.
The middle part of the resistor group is provided with a positioning shaft, and each resistor is sleeved on the positioning shaft.
And the contact surface of the upper electrode and the resistor group and the contact surface of the lower electrode and the resistor group are provided with positioning holes embedded with the shaft end of the positioning shaft.
The winding belt is an alkali-free glass ribbon.
An umbrella skirt is arranged outside the silica gel coat.
The utility model discloses an advantage does with positive effect:
1. the utility model discloses each resistance card diameter in the resistance card group steadilys decrease gradually, and the high-pressure side adopts major diameter resistance card, makes the arrester can bear higher voltage, avoids damaging.
2. The utility model discloses utilize the location axle to guarantee each resistance card and the axiality of last electrode, bottom electrode, easy to assemble simultaneously.
3. The utility model discloses a silica gel overcoat adopts integrative injection moulding, has increased arrester sealing performance, reduces product cost, and overcoat deckle edge can exempt from to repair, has improved production efficiency.
Drawings
Figure 1 is a schematic structural diagram of the present invention,
fig. 2 is the utility model discloses locate the location axle sketch map at resistance card middle part.
Wherein, 1 is the upper bolt, 2 is the silica gel overcoat, 3 is the upper electrode, 4 is the winding area, 5 is the resistance piece group, 6 is the lower electrode, 7 is lower bolt, 8 is the location axle.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1-2, the utility model discloses a silica gel overcoat 2 with locate 2 inside last electrode 3, resistance piece group 5 and bottom electrode 6 of silica gel overcoat, and go up electrode 3 and bottom electrode 6 branch and locate resistance piece group 5 both ends, 2 upper ends of silica gel overcoat be equipped with bolt 1 with go up electrode 3 and connect, the lower extreme be equipped with down bolt 7 with bottom electrode 6 connects, resistance piece group 5 includes a plurality of resistance pieces that descend progressively in proper order by last diameter down, go up electrode 3, resistance piece group 5 and the whole outside parcel winding area 4 of bottom electrode 6 with silica gel overcoat 2 separates, in this embodiment, winding area 4 is alkali-free glass silk area.
As shown in fig. 2, a positioning shaft 8 is disposed in the middle of the resistor group 5, positioning holes are disposed on the contact surface of the upper electrode 3 and the resistor group 5 and the contact surface of the lower electrode 6 and the resistor group 5, and two ends of the positioning shaft 8 are respectively inserted into the corresponding positioning holes. The utility model discloses because each resistance card diameter is different, with its suit in can guarantee on the location axle 8 5 axialities in the resistance card group, 8 materials in location axle are the same with the resistance card.
2 outsides of silica gel overcoat are equipped with the full skirt, just 2 injection moulding as an organic whole of silica gel overcoat, multiplicable arrester sealing performance reduces product cost to the burr can be exempted from to the overcoat, improves production efficiency.
The utility model discloses a theory of operation does:
the upper electrode 3, the lower electrode 6 and the resistor group 5 at the two ends of the inner part of the utility model are connected in series and are all sealed and wrapped under the shell of the winding belt 4, the upper bolt 1 at the upper end of the silica gel coat 2 is connected with the upper electrode 3 for connecting an input circuit, the lower bolt 7 at the lower end is connected with the lower electrode 6 for connecting a ground wire, since the diameters of the respective resistor pieces in the resistor piece group 5 gradually decrease from top to bottom, when overvoltage is generated, the high-voltage end at the upper end adopts a resistance card with larger diameter to bear higher voltage so as to avoid the damage of the lightning arrester, in addition, in order to ensure the coaxiality during installation, the resistor discs are sequentially sleeved on the positioning shaft 8, then the two ends of the positioning shaft 8 are respectively embedded with the positioning holes on the upper electrode 3 and the lower electrode 6, then, the winding belt 4 is wrapped, so that the coaxiality of the core is ensured, and the core cannot deflect.
Claims (5)
1. The utility model provides a compound overcoat arrester with inverted pyramid core which characterized in that: including silica gel overcoat (2) and locating inside last electrode (3), resistance piece group (5) and bottom electrode (6) of silica gel overcoat (2), and go up electrode (3) and bottom electrode (6) branch and locate resistance piece group (5) both ends, silica gel overcoat (2) upper end be equipped with bolt (1) with go up electrode (3) and connect, the lower extreme be equipped with down bolt (7) with bottom electrode (6) are connected, resistance piece group (5) include a plurality of by last diameter degressive resistance pieces in proper order down, go up electrode (3), resistance piece group (5) and bottom electrode (6) whole outside parcel winding area (4).
2. The composite cased lightning arrester provided with an inverted pyramid core as set forth in claim 1, wherein: the middle part of the resistor sheet group (5) is provided with a positioning shaft (8), and each resistor sheet is sleeved on the positioning shaft (8).
3. The composite cased lightning arrester provided with an inverted pyramid core as set forth in claim 2, wherein: and positioning holes which are embedded with the shaft ends of the positioning shafts (8) are arranged on the contact surfaces of the upper electrode (3) and the resistor group (5) and the contact surfaces of the lower electrode (6) and the resistor group (5).
4. The composite cased lightning arrester provided with an inverted pyramid core as set forth in claim 1, wherein: the winding belt (4) is an alkali-free glass ribbon.
5. The composite cased lightning arrester provided with an inverted pyramid core as set forth in claim 1, wherein: an umbrella skirt is arranged outside the silica gel coat (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122072801.7U CN216014970U (en) | 2021-08-31 | 2021-08-31 | Composite outer sleeve lightning arrester with inverted pyramid core body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122072801.7U CN216014970U (en) | 2021-08-31 | 2021-08-31 | Composite outer sleeve lightning arrester with inverted pyramid core body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216014970U true CN216014970U (en) | 2022-03-11 |
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ID=80532137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122072801.7U Active CN216014970U (en) | 2021-08-31 | 2021-08-31 | Composite outer sleeve lightning arrester with inverted pyramid core body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216014970U (en) |
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2021
- 2021-08-31 CN CN202122072801.7U patent/CN216014970U/en active Active
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