CN212516745U - Composite casing metal oxide lightning arrester - Google Patents
Composite casing metal oxide lightning arrester Download PDFInfo
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- CN212516745U CN212516745U CN202021576211.7U CN202021576211U CN212516745U CN 212516745 U CN212516745 U CN 212516745U CN 202021576211 U CN202021576211 U CN 202021576211U CN 212516745 U CN212516745 U CN 212516745U
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- metal oxide
- insulating base
- grounding terminal
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Abstract
The application relates to a composite coated metal oxide arrester, which comprises a mounting seat and an arrester body arranged on the mounting seat, wherein the arrester body comprises a conductive column, an inner cylinder and an outer cylinder, the conductive column penetrates through the inner side of the inner cylinder, the inner cylinder penetrates through the inner side of the outer cylinder, an insulating base is also arranged in the inner cylinder, and the insulating base is positioned at the lower end of the inner cylinder; the grounding terminal is buried in the insulating base and located on the side wall of the insulating base, the grounding terminal penetrates through the inner barrel and the outer barrel, one end, far away from the insulating base, of the grounding terminal is located on the outer side of the outer barrel, the lower end of the conductive post is connected with a wire, and the other end of the wire is connected with one end, located in the insulating base, of the grounding terminal. This application has the workman of being convenient for and installs the effect in the cubical switchboard with the arrester body.
Description
Technical Field
The application relates to the field of power equipment, in particular to a composite outer sleeve metal oxide lightning arrester.
Background
The lightning arrester is a protection device for protecting the insulation performance of electrical equipment in an electric power system from lightning overvoltage or internal overvoltage caused by equipment operation, and is an important protection link related to safe and stable operation of the electric power system.
The existing high-voltage switch cabinet is usually provided with a metal oxide arrester, and the metal oxide arrester arranged in the high-voltage switch cabinet usually comprises an arrester body and a base. Wherein the base is installed in the high-voltage switch cabinet, and the arrester body is installed on the base. When the installation, the arrester body needs direct ground connection, is provided with ground terminal on the base at present usually, and the arrester body is connected with the base.
In view of the above-mentioned related art, the inventor thinks that in the process of actual installation, the space in the high tension switchgear is less, and the workman can not be convenient when the installation install the defect in the cubical switchboard with the arrester body.
SUMMERY OF THE UTILITY MODEL
In order to be convenient for the workman to install the arrester body in the cubical switchboard, this application provides a composite sheath metal oxide arrester.
The application provides a compound overcoat metal oxide arrester adopts following technical scheme:
a composite coated metal oxide arrester comprises a mounting seat and an arrester body mounted on the mounting seat, wherein the arrester body comprises a conductive column, an inner cylinder and an outer cylinder, the conductive column is arranged on the inner side of the inner cylinder in a penetrating manner, the inner cylinder is arranged on the inner side of the outer cylinder in a penetrating manner, an insulating base is further arranged in the inner cylinder, and the insulating base is positioned at the lower end of the inner cylinder; the grounding terminal is buried in the insulating base and located on the side wall of the insulating base, the grounding terminal penetrates through the inner barrel and the outer barrel, one end, far away from the insulating base, of the grounding terminal is located on the outer side of the outer barrel, the lower end of the conductive post is connected with a wire, and the other end of the wire is connected with one end, located in the insulating base, of the grounding terminal.
Through adopting above-mentioned technical scheme, install ground terminal on insulating base, and ground terminal's one end is located the outside of outside section of thick bamboo. The ground terminal is disposed on the side face of the entire arrester body at this time, and is located at the lower end of the arrester body. When installing this arrester body in the cubical switchboard, fix the mount pad in the cubical switchboard earlier to one side that makes to be provided with ground terminal on the arrester body is towards the cubical switchboard outside, later with ground terminal pass through wire ground connection can, and need not to follow connecting wire on the mount pad, when installation ground wire, be difficult for being restricted by the arrester body. The lightning arrester body can be conveniently installed in the switch cabinet by workers.
Preferably, the outer cylinder be the silicon rubber skirt cover, the silicon rubber skirt cover includes sleeve and the skirt lantern ring of fixed connection on the sleeve lateral wall, the skirt lantern ring is provided with a plurality ofly, and the skirt lantern ring that highly is the lowest ring, highly is higher than ground terminal for the lowest ring.
Through adopting above-mentioned technical scheme, set the height that is higher than ground terminal with the height setting of minimum ring, make ground terminal be located one side of the skirt lantern ring, and not wear to establish and between the skirt lantern ring, can be convenient for the workman be connected wire and ground terminal.
Preferably, the part of the ground terminal located in the outer cylinder is an exposed section, and the length of the exposed section of the ground terminal is greater than the ring width of the lowest ring.
Through adopting above-mentioned technical scheme, make the ground terminal be located outside the outer one end of section of thick bamboo can stretch out to the minimum ring outside, the workman can be easier contact ground terminal, also more convenient when being connected to the wire on the ground terminal.
Preferably, the skirt collar is divided into a large ring and a small ring, the large ring and the small ring are arranged at intervals in sequence, the lowest ring is the small ring, and the length of the exposed section of the grounding terminal is smaller than the ring width of the large ring.
By adopting the technical scheme, the ring width of the large ring is larger than the length of the exposed section of the grounding terminal, so that the grounding terminal can be protected. When the arrester body is installed, whether the large ring interferes with other equipment in the switch cabinet or not can be judged, so that whether the grounding terminal can be normally installed in the switch cabinet or not can be judged.
Preferably, the conductive column comprises a plurality of zinc oxide resistance sheets and a sizing sleeve, the zinc oxide resistance sheets are mutually overlapped and embedded in the sizing sleeve, the sizing sleeve is made of reinforced nylon, and the sizing sleeve is integrally molded.
By adopting the technical scheme, the shaping sleeve is integrally molded by reinforced nylon materials, and the sealing performance is better. Compared with the prior structure for winding and fixing the weftless tape, the fixing effect is more stable, and the phenomenon of dislocation is not easy to occur.
Preferably, the inner cylinder and the sizing sleeve are made of reinforced nylon materials, and the inner cylinder and the sizing sleeve are integrally molded.
Through adopting above-mentioned technical scheme, the material of an inside section of thick bamboo and design cover is the same to integrative compression molding need not to separate an inside section of thick bamboo and design cover in production, and is more quick and convenient during production.
Preferably, the mounting seat on seted up mounting groove, the lower extreme of arrester body inlays to be established in mounting groove, and insulator foot and mounting groove's bottom surface butt, wears to be equipped with the bolt on the bottom surface of mounting seat, and the bolt wears to establish mounting groove to make insulator foot fixed the setting in mounting groove.
Through adopting above-mentioned technical scheme, when the lower extreme of arrester body inlayed and is established in mounting groove, the position of arrester body was restricted, and the workman of being convenient for fixes it on the mount pad through the bolt. And under mounting groove's spacing, the arrester body structure is more stable, is difficult for appearing the phenomenon of position slope skew in the installation other strength body.
Preferably, the cross section of the mounting seat is in a regular triangle shape, and bolts are fixedly mounted at three end points of the mounting seat.
Through adopting above-mentioned technical scheme, triangular mount pad materials are less, have guaranteed to have reduced the cost under the prerequisite that can fix the arrester body stable, are applicable to and install the environment that this kind is difficult for being touched like in the cubical switchboard.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the grounding wire is installed, the lightning arrester is not easily limited by the lightning arrester body, so that workers can conveniently install the lightning arrester body in the switch cabinet;
2. it is low cost and suitable for installation in such an environment as a switchgear cabinet that is not easily touched.
Drawings
Fig. 1 is a schematic structural diagram of the present embodiment.
Fig. 2 is a sectional view of the present embodiment.
Description of reference numerals: 1. a mounting seat; 11. installing a groove; 2. a lightning arrester body; 21. an outer barrel; 211. a sleeve; 212. a skirt collar; 2121. a large circular ring; 2122. a small circular ring; 22. an inner barrel; 3. a conductive post; 31. a zinc oxide resistor disc; 32. shaping sleeves; 4. an insulating base; 5. and a ground terminal.
Detailed Description
The present application is described in further detail below with reference to figures 1 and 2.
The embodiment of the application discloses a composite outer sleeve metal oxide arrester. Referring to fig. 1, the composite cased metal oxide arrester includes a mount base 1 and an arrester body 2 mounted on the mount base 1.
Referring to fig. 1 and 2, the cross section of the mounting seat 1 is in a regular triangle shape, and bolts are fixedly mounted at three end points in the cross section of the mounting seat 1. The mounting base 1 can be stably fixed in the switch cabinet through bolts. The round mounting groove 11 is formed in the center of the top surface of the mounting seat 1, the lower end of the lightning arrester body 2 is embedded in the mounting groove 11, the bolt penetrates through the bottom surface of the mounting seat 1, the other end of the bolt penetrates through the bottom surface of the inner side of the mounting groove 11, and the lower end of the lightning arrester body 2 is fixed in the mounting groove 11.
Referring to fig. 2, the surge arrester body 2 includes an outer tube 21, an inner tube 22 is placed in the outer tube 21, and an inner wall of the outer tube 21 abuts against an outer wall of the inner tube 22. Within the inner barrel 22 are placed a conducting post 3 and an insulating base 4, the insulating base 4 being located on the underside of the conducting post 3. The conductive column 3 comprises a zinc oxide resistance card 31 and a sizing sleeve 32, wherein at least two zinc oxide resistance cards 31 are arranged and are sequentially stacked to form a cylinder, and the cylindrical zinc oxide resistance card 31 is coated by the sizing sleeve 32. The side of the insulating base 4 is fixedly provided with a grounding terminal 5, the grounding terminal 5 penetrates through the inner cylinder 22 and the outer cylinder 21 at the same time, and one end of the grounding terminal 5 far away from the insulating base 4 is positioned outside the outer cylinder 21. The lower end of the conductive column 3 is connected with a wire, and the other end of the wire penetrates through the insulating base 4 and is connected with one end of the grounding terminal 5 in the insulating base 4. The inner cylinder 22 and the sizing sleeve 32 are both made of reinforced nylon, and the inner cylinder 22 and the sizing sleeve 32 are molded integrally. The bolt that wears to establish on the bottom surface of mount pad 1 wears to establish insulating base 4 to make insulating base 4 fix in mounting groove 11.
Referring to fig. 1 and 2, the outer cylinder 21 is a integrally molded silicone rubber skirt including a sleeve 211 and a skirt collar 212 integrally formed on an outer side wall of the sleeve 211. The skirt collar 212 includes at least a large circular ring 2121 and a small circular ring 2122, and the large circular ring 2121 and the small circular ring 2122 are sequentially disposed at intervals. The lowest-height skirt collar 212 is the lowest ring, and the lowest ring is a small circular ring 2122, and the height of the lowest ring is higher than that of the ground terminal 5. The portion of the ground terminal 5 located on the outer tube 21 is an exposed section, and the length of the exposed section is greater than the loop width of the small circular ring 2122 and less than the loop width of the large circular ring 2121.
The implementation principle of the composite casing metal oxide arrester of the embodiment of the application is as follows: the ground terminal 5 is provided on the side face of the entire arrester body 2, and is located at the lower end of the arrester body 2. When installing this arrester body 2 in the cubical switchboard, fix mount pad 1 in the cubical switchboard earlier to one side that is provided with ground terminal 5 on making arrester body 2 is towards the cubical switchboard outside, later with ground terminal 5 through wire ground connection can, and need not to follow connecting wire on mount pad 1, when installation ground wire, be difficult for being restricted by arrester body 2. The lightning arrester body 2 can be conveniently installed in the switch cabinet by workers. And this arrester body 2 sets up mount pad 1 to regular triangle because install in the cubical switchboard, and triangular mount pad 1 materials is less, has guaranteed to reduce the cost under the prerequisite that can stably fix arrester body 2. When the arrester body 2 is installed, whether the ground terminal 5 can be normally installed in the switch cabinet can be determined according to whether the large ring 2121 interferes with other equipment in the switch cabinet. The arrester body 2 is adapted to be installed in an environment that is not easily touched, such as in a switchgear cabinet.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a composite sheath metal oxide arrester, includes mount pad (1) and installs arrester body (2) on mount pad (1), its characterized in that: the lightning arrester comprises a lightning arrester body (2) and a lightning arrester body, wherein the lightning arrester body comprises a conductive column (3), an inner cylinder (22) and an outer cylinder (21), the conductive column (3) penetrates through the inner side of the inner cylinder (22), the inner cylinder (22) penetrates through the inner side of the outer cylinder (21), an insulating base (4) is further arranged in the inner cylinder (22), and the insulating base (4) is located at the lower end of the inner cylinder (22); a grounding terminal (5) is buried in an insulating base (4), the grounding terminal (5) is located on the side wall of the insulating base (4), the grounding terminal (5) penetrates through an inner barrel (22) and an outer barrel (21), one end, far away from the insulating base (4), of the grounding terminal (5) is located on the outer side of the outer barrel (21), the lower end of a conductive post (3) is connected with a wire, and the other end of the wire is connected with one end, located in the insulating base (4), of the grounding terminal (5).
2. The composite cased metal oxide arrester of claim 1, wherein: the outer cylinder (21) be the silicon rubber skirt cover, the silicon rubber skirt cover includes sleeve (211) and skirt lantern ring (212) of fixed connection on sleeve (211) lateral wall, skirt lantern ring (212) are provided with a plurality ofly, and highly the lowest skirt lantern ring (212) is the minimum ring, the height of minimum ring is higher than ground terminal (5).
3. The composite cased metal oxide arrester of claim 2, wherein: the part of the grounding terminal (5) positioned on the outer cylinder (21) is an exposed section, and the length of the exposed section of the grounding terminal (5) is greater than the ring width of the lowest ring.
4. The composite cased metal oxide arrester of claim 3, wherein: the skirt lantern ring (212) is divided into a large circular ring (2121) and a small circular ring (2122), the large circular ring (2121) and the small circular ring (2122) are sequentially arranged at intervals, the lowest ring is the small circular ring (2122), and the length of the exposed section of the grounding terminal (5) is smaller than the width of the large circular ring (2121).
5. The composite cased metal oxide arrester of claim 4, wherein: the conductive post (3) comprises a plurality of zinc oxide resistance sheets (31) and a sizing sleeve (32), the zinc oxide resistance sheets (31) are mutually overlapped and embedded in the sizing sleeve (32), the sizing sleeve (32) is made of reinforced nylon, and the sizing sleeve (32) is integrally molded.
6. The composite cased metal oxide arrester of claim 5, wherein: the inner cylinder (22) and the sizing sleeve (32) are both made of reinforced nylon materials, and the inner cylinder (22) and the sizing sleeve (32) are integrally molded.
7. The composite cased metal oxide arrester of claim 1, wherein: mounting base (1) on seted up mounting groove (11), the lower extreme of arrester body (2) inlays to be established in mounting groove (11), and insulator foot (4) and the bottom surface butt of mounting groove (11), wear to be equipped with the bolt on the bottom surface of mounting base (1), and the bolt wears to establish mounting groove (11) to make insulator foot (4) fixed the setting in mounting groove (11).
8. The composite cased metal oxide arrester of claim 1, wherein: the cross section of the mounting seat (1) is in a regular triangle shape, and bolts are fixedly mounted at three end points of the mounting seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021576211.7U CN212516745U (en) | 2020-07-31 | 2020-07-31 | Composite casing metal oxide lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021576211.7U CN212516745U (en) | 2020-07-31 | 2020-07-31 | Composite casing metal oxide lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212516745U true CN212516745U (en) | 2021-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021576211.7U Active CN212516745U (en) | 2020-07-31 | 2020-07-31 | Composite casing metal oxide lightning arrester |
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| Country | Link |
|---|---|
| CN (1) | CN212516745U (en) |
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2020
- 2020-07-31 CN CN202021576211.7U patent/CN212516745U/en active Active
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