CN109215908B - Lightning arrester and core and upper gland of core thereof - Google Patents
Lightning arrester and core and upper gland of core thereof Download PDFInfo
- Publication number
- CN109215908B CN109215908B CN201710527577.1A CN201710527577A CN109215908B CN 109215908 B CN109215908 B CN 109215908B CN 201710527577 A CN201710527577 A CN 201710527577A CN 109215908 B CN109215908 B CN 109215908B
- Authority
- CN
- China
- Prior art keywords
- gland
- arrester
- core
- lightning arrester
- face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 210000004907 gland Anatomy 0.000 title claims abstract description 106
- 239000004020 conductor Substances 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000004323 axial length Effects 0.000 claims description 4
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
Images
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/01—Mounting; Supporting
Abstract
The invention relates to a lightning arrester, a core body and a core body upper gland, wherein the core body upper gland comprises a gland body, the gland body is provided with a mounting hole, and the inner circumferential surface of the mounting hole is provided with a contact finger mounting groove for mounting a conductive contact finger so as to realize the conductive connection between a high-voltage input conductor of the lightning arrester and the gland body. Go up direct setting on the gland and touch the finger mounting groove to the corresponding electrically conductive finger that touches of installation for high-pressure input electric conductor can be directly with last gland electrically conductive inserting join in marriage, need not set up the electrically conductive connecting piece in addition above last gland like prior art, and then can effectively reduce the arrester core height, thereby can reduce the height of arrester, be favorable to the miniaturized development demand of arrester.
Description
Technical Field
The invention belongs to the field of lightning arresters, and particularly relates to a lightning arrester, a core body of the lightning arrester and a core body upper gland.
Background
The tank-type lightning arrester is mainly used for protecting an electric power system from the influence of overvoltage such as lightning or operation impact and the like, and the safe operation of the electric power system is ensured.
At present, the structural design of the core body of the tank-type lightning arrester at home and abroad is mostly formed by the structural design of electric connection, a gland on the core body, spring positioning and the like. The tank-type lightning arrester structure disclosed in the patent application publication No. CN106504836A of the invention comprises a cylinder body, wherein a core body is arranged in the cylinder body, the core body is provided with a resistor disc which is sequentially stacked, an upper gland and a lower base which are used for compressing the resistor disc through an insulating pull rod, a high-voltage insulator is arranged at the upper end of the cylinder body, a high-voltage conductor is arranged in the middle of the high-voltage insulator, and the high-voltage conductor is in conductive connection with the resistor disc through an electric connection structure arranged at the upper end of the core body. In fact, the structure of the electrical connection between the high-voltage conductor and the core is specifically shown in fig. 1, the core comprises sequentially stacked resistor discs, the core has an upper gland 2 fixedly assembled with a lower base through an insulating pull rod, a spring 3 is arranged between the upper gland 2 and the resistor disc 6, one end of the spring 3 is in conductive abutting fit with the upper gland 2, the other end of the spring is in abutting fit with a corresponding resistor disc gasket 4, the resistor disc gasket 4 has a corresponding spring limiting protrusion, a pressure equalizing cover 5 is arranged on the upper gland 2, the pressure equalizing cover 5 is fixed on the upper gland 2 through a conductive connecting piece 1 fixedly assembled on the upper gland 2 in a conductive manner, the upper part of the conductive connecting piece 1 is provided with a contact finger groove and a spring contact finger convenient to install, the lower part of the conductive connecting piece 1 is provided with a screw rod part to correspondingly fit with an internal screw hole arranged on the upper gland 2, thereby realizing the fixed assembly of the conductive connecting piece and the upper gland, the high-voltage input conductor on the lightning arrester is correspondingly and electrically connected with the spring contact finger in the contact finger groove of the conductive connecting piece 1. In this kind of current core structure, electrically conductive connecting piece directly establishes the top at last gland for whole core is higher relatively, is unfavorable for the needs of the miniaturized design of arrester.
Disclosure of Invention
The invention aims to provide an upper gland of a core body for a lightning arrester, which can reduce the height of the core body of the lightning arrester and is beneficial to the miniaturization design of the lightning arrester; meanwhile, the invention also provides a core body and a lightning arrester using the gland on the core body.
In order to achieve the purpose, the technical scheme of the upper gland of the core body for the lightning arrester provided by the invention is as follows: the utility model provides a gland on core for arrester, includes the gland body, is equipped with the mounting hole on the gland body, is equipped with on the inner peripheral surface of mounting hole to be used for the installation to electrically conduct to touch the finger with the electrically conductive finger mounting groove of touching that is connected of realization arrester high pressure input electric conductor and gland body.
The gland body is provided with a fastening connection structure for fastening and assembling the pressure equalizing cover on the gland body.
The gland body is provided with an outer end face for supporting and installing the pressure equalizing cover, and the fastening connection structure comprises a fastening screw installation hole arranged on the outer end face.
The gland body is provided with an inner end face which faces the arrester resistance card and is in top-pressing fit with the corresponding spring, and a positioning boss used for positioning the corresponding spring is convexly arranged on the inner end face.
The technical scheme of the lightning arrester core body using the gland on the core body provided by the invention is as follows: the utility model provides an arrester core, includes lower base and the last gland that utilizes insulating pull rod fastening assembly together, has stacked a plurality of arrester resistance cards in proper order between lower base and the last gland, goes up and is equipped with the spring between gland and the arrester resistance card, goes up the gland including with insulating pull rod assembly together and with the gland body that arrester resistance card electrically conducts the connection, is equipped with the mounting hole on the gland body, is equipped with on the inner peripheral surface of mounting hole and touches the finger mounting groove, touches and be equipped with in the finger mounting groove and be used for realizing the electrically conductive finger that touches of arrester high-voltage input electric conductor and last gland electrically conductive connection.
And a pressure equalizing cover which is tightly assembled on the gland body through a fastening connection structure is arranged outside the gland body.
The gland body is provided with an outer end face for supporting and installing the pressure equalizing cover, and the fastening connection structure comprises a fastening screw installation hole arranged on the outer end face and a fastening screw screwed in the fastening screw installation hole so as to fasten the pressure equalizing cover on the upper gland.
The gland body is provided with an inner end face which faces the arrester resistance card and is in top-pressing fit with the spring, and a positioning boss for positioning the spring is convexly arranged on the inner end face.
The conductive contact finger is a spring contact finger.
The technical scheme of the lightning arrester using the core body provided by the invention is as follows: the lightning arrester comprises a lightning arrester core body and a high-voltage input electric conductor which corresponds to the lightning arrester core body and is in conductive connection with the lightning arrester core body, wherein the lightning arrester core body comprises a lower base and an upper gland which are fastened and assembled together by utilizing an insulating pull rod, a plurality of lightning arrester resistor discs are sequentially stacked between the lower base and the upper gland, a spring is arranged between the upper gland and the lightning arrester resistor discs, the upper gland comprises a gland body which is assembled together with the insulating pull rod and is in conductive connection with the lightning arrester resistor discs, a mounting hole is formed in the gland body, a contact finger mounting groove is formed in the inner peripheral surface of the mounting hole, a conductive contact finger is arranged in the contact finger mounting groove, and the high-voltage input electric conductor is inserted into the mounting hole and is in conductive connection with the conductive contact finger.
The pressure equalizing cover is arranged outside the upper pressure cover, the pressure equalizing cover body is provided with an outer end face for supporting and installing the pressure equalizing cover, fastening screw installation holes are formed in the outer end face, and the pressure equalizing cover is fastened and assembled on the upper pressure cover through fastening screws screwed in the fastening screw installation holes.
The gland body is provided with an inner end face which faces the arrester resistance card and is in top-pressing fit with the spring, and a positioning boss for positioning the spring is convexly arranged on the inner end face.
The invention has the beneficial effects that: the upper gland of the core body of the lightning arrester is directly provided with the contact finger installation groove so as to install the corresponding conductive contact finger, so that the high-voltage input conductor can be directly in conductive insertion fit with the upper gland, and a conductive connecting piece does not need to be additionally arranged above the upper gland in the prior art, so that the height of the core body of the lightning arrester can be effectively reduced, the height of the lightning arrester can be reduced, and the miniaturization development requirement of the lightning arrester is facilitated. Correspondingly, the lightning arrester core body and the lightning arrester provided by the invention are relatively low in height, small in size and low in cost.
Drawings
Fig. 1 is a partial structural schematic view of a core body of a conventional surge arrester;
fig. 2 is a schematic structural view of a lightning arrester according to the present invention;
FIG. 3 is a schematic view of a portion of the core of FIG. 2 (spring fingers not shown);
fig. 4 is a schematic structural view of the upper gland in fig. 3.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings, but the present invention is not limited thereto.
As shown in fig. 2, 3 and 4, the arrester in this embodiment includes a cylindrical body 15, a core body 100 of the arrester is disposed in the cylindrical body 15, and a high-voltage input conductor 10 for electrically connecting with the core body 100 of the arrester is disposed at an upper end of the cylindrical body 15, where the structures of the cylindrical body 15 and the high-voltage input conductor 10 are the same as those of the cylindrical body and the high-voltage input conductor of the arrester in the prior art, and are not described herein again.
As shown in fig. 3 and 4, the surge arrester core body 100 includes a lower base 16 and an upper cover 11 fixedly assembled together by an insulating tie rod 18, a plurality of surge arrester resistive sheets 14 are sequentially stacked between the lower base 16 and the upper cover 11, a spring 13 is disposed between the upper cover 11 and the surge arrester resistive sheets 14, and a flat gasket 17 for mainly protecting is disposed between the spring 13 and the surge arrester resistive sheets 14.
The main improvement of this embodiment lies in the overall structure design of the upper gland, and the upper gland 11 includes the gland body 20 that is connected with the arrester resistance card in a conductive manner together with insulating pull rod fixed assembly, is equipped with mounting hole 21 on the gland body 20, is equipped with on the inner peripheral surface of mounting hole 21 and touches finger mounting groove 26, touches and is equipped with electrically conductive touch finger (not shown in the figure) in finger mounting groove 26, and electrically conductive touch finger specifically is the spring touch finger. The high-voltage input conductor 10 is inserted into the mounting hole 21 and is electrically connected with the conductive contact finger, so that the upper gland is electrically connected with the high-voltage input conductor.
The above-mentioned pressure equalizing cover 12 is provided with corresponding through holes for passing the high-voltage input conductors corresponding to the mounting holes on the gland body.
In practice, the gland body 20 has an inner end face 23 facing the arrester resistor disc and an outer end face 25 facing away from the arrester resistor disc, a voltage-sharing cover 12 is arranged outside the gland body 20, the voltage-sharing cover 12 is fastened and assembled on the gland body through a fastening connection structure, the voltage-sharing cover 12 is supported and placed on the outer end face 25 of the gland body, the fastening connection structure specifically comprises a fastening screw mounting hole 24 arranged on the outer end face 25 of the gland body 20 and a fastening screw screwed in the fastening screw mounting hole 24 to fasten the voltage-sharing cover on the upper gland. The structure of the voltage-sharing cover 12 is the same as that of the voltage-sharing cover of the arrester in the prior art, and corresponding screw mounting holes are formed in the voltage-sharing cover.
The inner end surface 23 of the gland body 20 is in abutting fit with the spring 13, and a positioning boss 22 for positioning the spring 13 is convexly arranged on the inner end surface 23 of the gland body to ensure stable positioning of the spring. The design of locating boss here can also prolong the axial length of mounting hole to the finger mounting groove of sufficient quantity of design of being convenient for.
In the arrester that this embodiment provided, go up and directly set up on the gland and touch the finger mounting groove to the installation is electrically conductive to touch the finger, makes high-pressure input electric conductor can directly insert with last gland is electrically conductive to join in marriage, need not set up the electrically conductive connecting piece in addition above last gland like prior art, and then can effectively reduce the height of arrester core, thereby can reduce the height of arrester, is favorable to the miniaturized development of arrester to need. Moreover, the upper pressure cover that this embodiment provided still integrateed has the location boss, can save the spacing gasket of spring among the prior art like this, has not only reduced spare part quantity, has also reduced the height to a certain extent. In addition, the pressure equalizing cover is directly fixed on the upper pressure cover by utilizing a fastening connection structure. The upper gland that this embodiment provided integrates the degree height, and the function is many, can effectively reduce the spare part quantity of arrester core, reduces the core height, simplifies the core structure, reduce cost.
In this embodiment, the pressure equalizing cover is fixed on the outer end surface of the gland body through a fastening connection structure, and the fastening connection structure includes a fastening screw. In other embodiments, the fastening connection may also be a screw connection.
In this embodiment, the conductive contact finger is specifically a spring contact finger, and in other embodiments, the conductive contact finger may also be in other contact finger structures as long as the conductive connection between the high-voltage input conductor and the upper gland can be realized.
The invention also provides a specific embodiment of the lightning arrester core body, and the structure of the lightning arrester core body in the embodiment is the same as that of the core body in the lightning arrester embodiment, and is not described again.
The invention also provides a specific embodiment of the upper gland of the core body for the lightning arrester, the structure of the upper gland in the embodiment is the same as that of the upper gland in the embodiment of the lightning arrester, and the details are not repeated.
Claims (8)
1. The utility model provides a gland on core for arrester, includes the gland body, its characterized in that: the lightning arrester high-voltage input conductor is characterized in that the gland body is provided with a mounting hole, the inner peripheral surface of the mounting hole is provided with a contact finger mounting groove for mounting a conductive contact finger to realize conductive connection between the lightning arrester high-voltage input conductor and the gland body, the gland body is provided with an inner end surface which is used for facing a lightning arrester resistance sheet to be in top pressure fit with a corresponding spring, the inner end surface is convexly provided with a positioning boss for positioning the corresponding spring, and the positioning boss can prolong the axial length of the mounting hole to meet the design of enough contact finger mounting grooves.
2. The upper cover for a core for a lightning arrester according to claim 1, wherein: the gland body is provided with a fastening connection structure for fastening and assembling the pressure equalizing cover on the gland body.
3. The upper cover for a core for a lightning arrester according to claim 2, wherein: the gland body is provided with an outer end face for supporting and installing the pressure equalizing cover, and the fastening connection structure comprises a fastening screw installation hole arranged on the outer end face.
4. The utility model provides an arrester core, includes lower base and the last gland that utilizes insulating pull rod fastening assembly together, has stacked a plurality of arrester resistance cards between lower base and the last gland in proper order, goes up and is equipped with the spring between gland and the arrester resistance card, goes up the gland include with insulating pull rod assembly together and with the gland body of the electrically conductive connection of arrester resistance card, its characterized in that: the lightning arrester high-voltage input electric conductor is characterized in that the gland body is provided with a mounting hole, a contact finger mounting groove is formed in the inner peripheral surface of the mounting hole, a conductive contact finger used for achieving conductive connection of the lightning arrester high-voltage input electric conductor and the upper gland is arranged in the contact finger mounting groove, the gland body is provided with an inner end face used for facing the lightning arrester resistance sheet and being in top pressure fit with the spring, a positioning boss used for positioning the spring is arranged on the inner end face in a protruding mode, and the positioning boss can prolong the axial length of the mounting hole so as to meet the requirement of the design of enough number of contact finger mounting grooves.
5. A surge arrester core as claimed in claim 4, wherein: and a pressure equalizing cover which is tightly assembled on the gland body through a fastening connection structure is arranged outside the gland body.
6. A surge arrester core as claimed in claim 5, wherein: the gland body is provided with an outer end face for supporting and installing the pressure equalizing cover, and the fastening connection structure comprises a fastening screw installation hole arranged on the outer end face and a fastening screw screwed in the fastening screw installation hole so as to fasten the pressure equalizing cover on the upper gland.
7. The utility model provides an arrester, includes the arrester core and corresponds electrically conductive high-pressure input electric conductor who is connected with the arrester core, and the arrester core is including utilizing insulating pull rod fastening assembly lower base and last gland together, stacks in proper order between lower base and the last gland and has a plurality of arrester resistance cards, goes up and is equipped with the spring between gland and the arrester resistance card, goes up the gland include with insulating pull rod assembly together and with the electrically conductive gland body of being connected of arrester resistance card, its characterized in that: the high-voltage input conductor is inserted into the mounting hole and is in conductive connection with the conductive contact finger, the gland body is provided with an inner end face facing the lightning arrester resistance sheet and in top-pressing fit with the spring, the inner end face is convexly provided with a positioning boss for positioning the spring, and the positioning boss can prolong the axial length of the mounting hole so as to meet the design of enough number of contact finger mounting grooves.
8. A surge arrester according to claim 7, characterized in that: the pressure equalizing cover is arranged outside the upper pressure cover, the pressure equalizing cover body is provided with an outer end face for supporting and installing the pressure equalizing cover, fastening screw installation holes are formed in the outer end face, and the pressure equalizing cover is fastened and assembled on the upper pressure cover through fastening screws screwed in the fastening screw installation holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710527577.1A CN109215908B (en) | 2017-06-30 | 2017-06-30 | Lightning arrester and core and upper gland of core thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710527577.1A CN109215908B (en) | 2017-06-30 | 2017-06-30 | Lightning arrester and core and upper gland of core thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109215908A CN109215908A (en) | 2019-01-15 |
| CN109215908B true CN109215908B (en) | 2021-08-20 |
Family
ID=64991693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710527577.1A Active CN109215908B (en) | 2017-06-30 | 2017-06-30 | Lightning arrester and core and upper gland of core thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109215908B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110660545B (en) * | 2019-08-08 | 2022-07-05 | 河南平高电气股份有限公司 | Gland of pressure equipment core for can-type arrester and can-type arrester |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06260305A (en) * | 1993-03-08 | 1994-09-16 | Fuji Electric Co Ltd | Current-terminal leading-out structure of lightning arrester |
| CN202275675U (en) * | 2011-07-18 | 2012-06-13 | 平高集团有限公司 | Tank-type lightning arrester used for electric power system |
| CN203311955U (en) * | 2013-03-12 | 2013-11-27 | 郑越 | Overvoltage protector for 6kV or 10kV of alternating-current power system |
| CN204834220U (en) * | 2015-07-20 | 2015-12-02 | 山东泰开互感器有限公司 | Miniaturized pot -type metal oxide arrester of 110kV three -phase |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3144942B1 (en) * | 2015-09-18 | 2018-02-21 | Siemens Aktiengesellschaft | Surge arrester |
-
2017
- 2017-06-30 CN CN201710527577.1A patent/CN109215908B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06260305A (en) * | 1993-03-08 | 1994-09-16 | Fuji Electric Co Ltd | Current-terminal leading-out structure of lightning arrester |
| CN202275675U (en) * | 2011-07-18 | 2012-06-13 | 平高集团有限公司 | Tank-type lightning arrester used for electric power system |
| CN203311955U (en) * | 2013-03-12 | 2013-11-27 | 郑越 | Overvoltage protector for 6kV or 10kV of alternating-current power system |
| CN204834220U (en) * | 2015-07-20 | 2015-12-02 | 山东泰开互感器有限公司 | Miniaturized pot -type metal oxide arrester of 110kV three -phase |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109215908A (en) | 2019-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106953188A (en) | A kind of adaptor connector | |
| CN109215908B (en) | Lightning arrester and core and upper gland of core thereof | |
| CN201956646U (en) | GIS (Geographic Information System) terminal conductive contact structure | |
| CN205508699U (en) | High voltage isolator's cloudy contact | |
| CN201018119Y (en) | Fixed connection anti-surge voltage plug and socket | |
| CN207651259U (en) | A kind of band external series gap line support arrester | |
| CN102026465A (en) | Needle-emitting rack of ion fan | |
| CN210925628U (en) | Lightning arrester | |
| CN206516775U (en) | Adaptor connector | |
| CN102723154A (en) | Resistor | |
| CN202749554U (en) | Self-clamping socket | |
| CN202720981U (en) | Resistance | |
| CN202454476U (en) | Contact seat shielding device | |
| CN201887168U (en) | Plug-in type wiring terminal strip being suitable for single conductor | |
| CN201750031U (en) | Double-plug type tubular intermediate conductor connector | |
| CN205303793U (en) | Electric wire connector | |
| CN214013398U (en) | Locomotive arrester with large-section through current connection structure | |
| CN201789675U (en) | Ionizing air blower emitting needle rack | |
| CN214012744U (en) | Insulating anti-burst condenser | |
| CN220138132U (en) | Combined ceramic capacitor | |
| CN212081176U (en) | Novel LED driver shell | |
| CN201656325U (en) | Voltage-sharing spring of high-voltage switch gear | |
| CN102694322B (en) | Special-shaped high-voltage-resisting adaptor connector | |
| CN218782848U (en) | Integrated lightning arrester | |
| CN212625347U (en) | Installation structure of isolating switch conductive copper bar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |