CN111292907B - Porcelain shell type zinc oxide lightning arrester and using method thereof - Google Patents
Porcelain shell type zinc oxide lightning arrester and using method thereof Download PDFInfo
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- CN111292907B CN111292907B CN202010101720.2A CN202010101720A CN111292907B CN 111292907 B CN111292907 B CN 111292907B CN 202010101720 A CN202010101720 A CN 202010101720A CN 111292907 B CN111292907 B CN 111292907B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/01—Mounting; Supporting
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/001—Mass resistors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
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Abstract
The invention relates to the technical field of lightning arresters, in particular to a porcelain shell type zinc oxide lightning arrester and a using method thereof. According to the invention, the outer ceramic shell and the base body are in threaded connection through the fixing bolt, so that the mounting and dismounting are convenient; go up and draw forth between electrode and the zinc oxide resistance structure through last thread groove threaded connection and last thread groove threaded connection, and draw forth under through screw hole and electrode connection head threaded connection down between electrode and the zinc oxide resistance structure, be convenient for install and dismantle, every part all can be dismantled, can change alone after damaging, practice thrift the cost, divide into a plurality of zinc oxide resistors with the zinc oxide resistance structure, the resistance of zinc oxide resistance structure can change according to the quantity of zinc oxide resistor, can change alone, practice thrift the cost.
Description
Technical Field
The invention relates to the technical field of lightning arresters, in particular to a porcelain shell type zinc oxide lightning arrester and a using method thereof.
Background
The porcelain shell type zinc oxide arrester is an arrester with good protection performance. The current flowing through the lightning arrester is extremely small (microampere or milliampere) at normal working voltage by utilizing the good nonlinear volt-ampere characteristic of the zinc oxide; when overvoltage acts, the resistance drops sharply, and the energy of the overvoltage is released, so that the protection effect is achieved. The difference between the lightning arrester and the traditional lightning arrester is that the lightning arrester does not have a discharge gap, the nonlinear characteristic of zinc oxide is utilized to play the roles of current leakage and disconnection, the current porcelain shell type zinc oxide lightning arresters are all integrally formed structures, and after one part is damaged, the lightning arrester is inconvenient to mount and dismount, inconvenient to maintain, required to be integrally replaced and extremely high in cost.
Disclosure of Invention
The invention aims to provide a porcelain shell type zinc oxide arrester and a using method thereof, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a porcelain shell type zinc oxide arrester comprises an outer porcelain shell with a hollow structure inside and a zinc oxide resistor structure arranged in the outer porcelain shell, wherein the bottom of the outer porcelain shell is in an open state, a detachable base is installed at the bottom of the outer porcelain shell and comprises a base body, a fixed groove matched with the bottom area size of the outer porcelain shell is formed in the top surface of the base body, the outer porcelain shell is in splicing fit with the fixed groove, a plurality of threaded connection grooves which are uniformly and equidistantly arranged are formed in the bottom surface of the outer porcelain shell, fixing bolts which are equal in number, matched in size and corresponding in position to the threaded connection grooves are in threaded connection on the base body, the outer porcelain shell is in threaded connection with the base body through the fixing bolts, the top of the zinc oxide resistor structure is connected with an upper extraction electrode, and the base body is connected with an axial lower extraction electrode, and the top of the lower extraction electrode is connected with the zinc oxide resistor structure.
Preferably, the bottom of the upper extraction electrode is connected with a first upper thread head, and the top of the zinc oxide resistor structure is provided with a first upper thread groove which corresponds to the first upper thread head in position, is matched with the first upper thread head in size and is in threaded connection.
Preferably, the bottom of the zinc oxide resistor structure is provided with a lower threaded hole, and the top of the lower extraction electrode is connected with an electrode connector which corresponds to the lower threaded hole in position, is matched in size and is in threaded connection.
Preferably, the upper extraction electrode is sleeved with an upper insulating head, and the lower extraction electrode is sleeved with a lower insulating head.
Preferably, the upper extraction electrode is sleeved with an upper positioning spring, the lower extraction electrode is sleeved with a lower positioning spring, and the upper positioning spring and the lower positioning spring are both arranged in the outer porcelain shell.
Preferably, the zinc oxide resistor structure is formed by splicing a plurality of zinc oxide resistors with the same type.
Preferably, the zinc oxide resistor structure comprises a first zinc oxide resistor, a second zinc oxide resistor and a third zinc oxide resistor which are connected in sequence.
Preferably, the top of the first zinc oxide resistor, the second zinc oxide resistor and the third zinc oxide resistor is provided with an axial second upper threaded head, and the bottom of the first zinc oxide resistor, the second zinc oxide resistor and the third zinc oxide resistor is provided with an axial lower threaded hole.
Preferably, the bottom of the upper extraction electrode is connected with an upper connector, and a second upper thread groove is formed in the center of the bottom of the upper connector.
On the other hand, the invention also provides a using method of the porcelain shell type zinc oxide arrester, which comprises the porcelain shell type zinc oxide arrester, and specifically comprises the following steps:
s1: taking down the fixing bolts on the outer ceramic shell and the base body, and separating the outer ceramic shell from the base body;
s2: sequentially connecting the first zinc oxide resistor, the second zinc oxide resistor and the third zinc oxide resistor end to form a zinc oxide resistor structure;
s3: putting the upper positioning spring into the outer ceramic shell, and sleeving the upper positioning spring on the upper lead-out electrode;
s4: connecting a second upper thread head at the top of the zinc oxide resistor structure into a second upper thread groove at the bottom of the upper connector in a threaded manner;
s5: sleeving a lower positioning spring on the top of the lower leading-out electrode, and inserting the bottom of the outer ceramic shell on a fixing groove of the base body;
s6: and connecting the fixing bolt on the threaded connecting groove at the bottom of the outer ceramic shell in a threaded manner.
Compared with the prior art, the invention has the beneficial effects that:
1. in the porcelain shell type zinc oxide arrester and the using method thereof, the outer porcelain shell is in threaded connection with the base body through the fixing bolt, so that the porcelain shell type zinc oxide arrester is convenient to mount and dismount; go up between extraction electrode and the zinc oxide resistance structure through last thread head and last thread groove threaded connection, and through screw hole and electrode connection head threaded connection down between extraction electrode and the zinc oxide resistance structure, be convenient for install and dismantle, every part all can be dismantled, can change alone after damaging, practices thrift the cost.
2. This porcelain shell formula zinc oxide arrester and application method thereof is through dividing into a plurality of zinc oxide resistors with zinc oxide resistance structure, and the resistance of zinc oxide resistance structure can change according to the quantity of zinc oxide resistor, forms through last screw head and lower screw hole concatenation between the adjacent zinc oxide resistor in addition, after one of them resistance damages, can change alone, practices thrift the cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the specific structure of the present invention;
FIG. 3 is a schematic structural view of the outer ceramic shell of the present invention;
FIG. 4 is a schematic structural view of the removable base of the present invention;
FIG. 5 is a schematic diagram of an exploded structure of a plurality of zinc oxide resistors according to the present invention;
FIG. 6 is a schematic structural diagram of a plurality of zinc oxide resistors according to the present invention.
In the figure: 1. an outer ceramic shell; 11. an upper positioning spring; 12. a lower positioning spring; 13. a first upper thread groove; 14. an upper connector; 15. connecting grooves by screw threads; 16. a second upper thread groove; 2. a zinc oxide resistor structure; 201. a first zinc oxide resistor; 202. a second zinc oxide resistor; 203. a third zinc oxide resistor; 21. an upper insulating head; 22. an upper extraction electrode; 23. a first upper thread start; 24. a lower threaded hole; 25. a second upper thread start; 3. a detachable base; 31. a base body; 32. a lower insulating head; 33. a lower extraction electrode; 34. an electrode connector; 35. fixing grooves; 36. and (5) fixing the bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A porcelain shell type zinc oxide arrester comprises an outer porcelain shell 1 with a hollow structure inside and a zinc oxide resistor structure 2 arranged in the outer porcelain shell 1, wherein the bottom of the outer porcelain shell 1 is in an open state, a detachable base 3 is arranged at the bottom of the outer porcelain shell 1, the detachable base 3 comprises a base body 31, a fixed groove 35 matched with the bottom area size of the outer porcelain shell 1 is formed in the top surface of the base body 31, the outer porcelain shell 1 is in inserted fit with the fixed groove 35, a plurality of threaded connecting grooves 15 uniformly and equidistantly arranged are formed in the bottom surface of the outer porcelain shell 1, fixing bolts 36 which are equal in number, are matched in size and correspond in position to the threaded connecting grooves 15 are in threaded connection on the base body 31, the outer porcelain shell 1 is in threaded connection with the base body 31 through the fixing bolts 36, the top of the zinc oxide resistor structure 2 is connected with an upper extraction electrode 22, and the base body 31 is connected with an axial lower extraction electrode 33, the top of the lower extraction electrode 33 is connected with the zinc oxide resistor structure 2.
Further, the bottom of the upper extraction electrode 22 is connected with a first upper thread head 23, and the top of the zinc oxide resistor structure 2 is provided with a first upper thread groove 13 which corresponds to the first upper thread head 23 in position, is matched in size and is in threaded connection.
Specifically, a lower threaded hole 24 is formed in the bottom of the zinc oxide resistor structure 2, the top of the lower extraction electrode 33 is connected with an electrode connector 34 which corresponds to the position of the lower threaded hole 24 and is in size-adaptive threaded connection, an upper insulation head 21 is sleeved on the upper extraction electrode 22, a lower insulation head 32 is sleeved on the lower extraction electrode 33, a positioning spring 11 is sleeved on the upper extraction electrode 22, a lower positioning spring 12 is sleeved on the lower extraction electrode 33, and the upper positioning spring 11 and the lower positioning spring 12 are both arranged in the outer porcelain shell 1.
On the other hand, the invention also provides a using method of the porcelain shell type zinc oxide arrester, which comprises the porcelain shell type zinc oxide arrester, and specifically comprises the following steps:
s1: taking down the fixing bolts 36 on the outer ceramic shell 1 and the base body 31, and separating the outer ceramic shell 1 from the base body 31;
s2: sequentially connecting a first zinc oxide resistor 201, a second zinc oxide resistor 202 and a third zinc oxide resistor 203 end to form a zinc oxide resistor structure 2;
s3: putting the upper positioning spring 11 into the outer ceramic shell 1, and sleeving the upper positioning spring 11 on the upper extraction electrode 22;
s4: screwing a second upper thread head 25 at the top of the zinc oxide resistor structure 2 into a second upper thread groove 16 at the bottom of the upper connector 14;
s5: sleeving the lower positioning spring 12 on the top of the lower extraction electrode 33, and inserting the bottom of the outer ceramic shell 1 on the fixing groove 35 of the base body 31;
s6: the fixing bolt 36 is screwed to the screw coupling groove 15 at the bottom of the outer porcelain shell 1.
In the porcelain shell type zinc oxide arrester and the use method thereof, the outer porcelain shell 1 is in threaded connection with the base body 31 through the fixing bolt 36, so that the porcelain shell type zinc oxide arrester is convenient to mount and dismount; go up between extraction electrode 22 and the zinc oxide resistance structure 2 through first last thread head 23 and first last thread groove 13 threaded connection, and through lower screw hole 24 and electrode connection head 34 threaded connection between extraction electrode 33 and the zinc oxide resistance structure 2 down, be convenient for install and dismantle, every part all can be dismantled, can change alone after damaging, practices thrift the cost.
Example 2
As a second embodiment of the present invention, the zinc oxide resistor structure 2 is formed by splicing a plurality of zinc oxide resistors of the same type.
Specifically, as shown in fig. 5 and fig. 6, the zinc oxide resistor structure 2 includes a first zinc oxide resistor 201, a second zinc oxide resistor 202, and a third zinc oxide resistor 203, which are connected in sequence.
Further, the top of the first zinc oxide resistor 201, the second zinc oxide resistor 202 and the third zinc oxide resistor 203 are provided with an axial second upper thread head 25, and the bottom is provided with an axial lower thread hole 24.
The upper lead electrode 22 has an upper contact 14 connected to the bottom thereof, and a second upper screw groove 16 is formed in the center of the bottom of the upper contact 14.
The porcelain shell formula zinc oxide arrester of this embodiment is through dividing into a plurality of zinc oxide resistors with zinc oxide resistance structure 2, and zinc oxide resistance structure 2's resistance can change according to zinc oxide resistor's quantity, forms through the second on the screw thread head 25 and the 24 concatenations of lower screw hole between the adjacent zinc oxide resistor in addition, after one of them resistance damages, can change alone, practices thrift the cost.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A porcelain shell type zinc oxide arrester is characterized in that: the ceramic capacitor comprises an outer ceramic shell (1) with a hollow structure inside and a zinc oxide resistance structure (2) arranged in the outer ceramic shell (1), wherein the bottom of the outer ceramic shell (1) is in an open state, a detachable base (3) is installed at the bottom of the outer ceramic shell (1), the detachable base (3) comprises a base body (31), a fixed groove (35) matched with the bottom area of the outer ceramic shell (1) in size is formed in the top surface of the base body (31), the outer ceramic shell (1) is in plug-in fit with the fixed groove (35), a plurality of threaded connecting grooves (15) which are uniformly and equidistantly arranged are formed in the bottom surface of the outer ceramic shell (1), fixing bolts (36) which are in equal number, matched in size and corresponding in position are connected to the threaded connecting grooves (15) in a threaded manner, and the outer ceramic shell (1) is in threaded connection with the base body (31) through the fixing bolts (36), the top of the zinc oxide resistor structure (2) is connected with an upper extraction electrode (22); the bottom of the upper extraction electrode (22) is connected with an upper connector (14), the center of the bottom of the upper connector (14) is provided with a second upper thread groove (16), the base body (31) is connected with an axial lower extraction electrode (33), and the top of the lower extraction electrode (33) is connected with the zinc oxide resistance structure (2); an upper positioning spring (11) is sleeved on the upper extraction electrode (22), a lower positioning spring (12) is sleeved on the lower extraction electrode (33), and the upper positioning spring (11) and the lower positioning spring (12) are both arranged in the outer porcelain shell (1); the zinc oxide resistor structure (2) comprises a first zinc oxide resistor (201), a second zinc oxide resistor (202) and a third zinc oxide resistor (203) which are connected in sequence; and the top parts of the first zinc oxide resistor (201), the second zinc oxide resistor (202) and the third zinc oxide resistor (203) are provided with an axial second upper thread head (25), and the bottom parts of the first zinc oxide resistor, the second zinc oxide resistor and the third zinc oxide resistor are provided with axial lower thread holes (24).
2. The porcelain shell type zinc oxide arrester as claimed in claim 1, wherein: the bottom of the zinc oxide resistor structure (2) is provided with a lower threaded hole (24), and the top of the lower extraction electrode (33) is connected with an electrode connector (34) which corresponds to the lower threaded hole (24) in position, is adaptive to size and is in threaded connection.
3. The porcelain shell type zinc oxide arrester as claimed in claim 1, wherein: an upper insulating head (21) is sleeved on the upper extraction electrode (22), and a lower insulating head (32) is sleeved on the lower extraction electrode (33).
4. A method of using a porcelain-shelled zinc oxide arrester comprising the porcelain-shelled zinc oxide arrester of any one of claims 1 to 3, characterized in that: the method specifically comprises the following steps:
s1: taking down the fixing bolts (36) on the outer ceramic shell (1) and the base body (31), and separating the outer ceramic shell (1) from the base body (31);
s2: sequentially connecting a first zinc oxide resistor (201), a second zinc oxide resistor (202) and a third zinc oxide resistor (203) end to form a zinc oxide resistor structure (2);
s3: putting the upper positioning spring (11) into the outer ceramic shell (1), and sleeving the upper positioning spring (11) on the upper extraction electrode (22);
s4: a second upper thread head (25) at the top of the zinc oxide resistor structure (2) is connected into a second upper thread groove (16) at the bottom of the upper connector (14) in a threaded manner;
s5: sleeving a lower positioning spring (12) on the top of a lower leading-out electrode (33), and inserting the bottom of the outer ceramic shell (1) on a fixing groove (35) of the base body (31);
s6: and (3) connecting the fixing bolt (36) to the threaded connecting groove (15) at the bottom of the outer porcelain shell (1) in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010101720.2A CN111292907B (en) | 2020-02-19 | 2020-02-19 | Porcelain shell type zinc oxide lightning arrester and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010101720.2A CN111292907B (en) | 2020-02-19 | 2020-02-19 | Porcelain shell type zinc oxide lightning arrester and using method thereof |
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| CN111292907A CN111292907A (en) | 2020-06-16 |
| CN111292907B true CN111292907B (en) | 2022-02-11 |
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| CN115083705B (en) * | 2022-06-21 | 2023-03-24 | 深圳可雷可科技股份有限公司 | Silicon carbide nonlinear resistor for de-excitation of generator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201417654Y (en) * | 2009-05-08 | 2010-03-03 | 武汉爱劳高科技有限责任公司 | Strong thunder load arrester for overhead transmission line |
| CN206489917U (en) * | 2017-01-24 | 2017-09-12 | 天津市倍利加科技发展有限公司 | A kind of MOV voltage dependent resistor overvoltage protectors part |
| CN109817402A (en) * | 2019-03-14 | 2019-05-28 | 合肥格威特电气技术有限公司 | A kind of detachable polymeric metal oxide surge arrester |
| CN209625944U (en) * | 2019-03-27 | 2019-11-12 | 南京兆能电气有限公司 | Combined series connection ceramic resistor |
-
2020
- 2020-02-19 CN CN202010101720.2A patent/CN111292907B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201417654Y (en) * | 2009-05-08 | 2010-03-03 | 武汉爱劳高科技有限责任公司 | Strong thunder load arrester for overhead transmission line |
| CN206489917U (en) * | 2017-01-24 | 2017-09-12 | 天津市倍利加科技发展有限公司 | A kind of MOV voltage dependent resistor overvoltage protectors part |
| CN109817402A (en) * | 2019-03-14 | 2019-05-28 | 合肥格威特电气技术有限公司 | A kind of detachable polymeric metal oxide surge arrester |
| CN209625944U (en) * | 2019-03-27 | 2019-11-12 | 南京兆能电气有限公司 | Combined series connection ceramic resistor |
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