CN110047634A - A kind of zinc oxide explosion-proof lightning arrester - Google Patents
A kind of zinc oxide explosion-proof lightning arrester Download PDFInfo
- Publication number
- CN110047634A CN110047634A CN201811436349.4A CN201811436349A CN110047634A CN 110047634 A CN110047634 A CN 110047634A CN 201811436349 A CN201811436349 A CN 201811436349A CN 110047634 A CN110047634 A CN 110047634A
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- Prior art keywords
- hole
- insulating cylinder
- groove
- zinc oxide
- explosion
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
- H01C1/032—Housing; Enclosing; Embedding; Filling the housing or enclosure plural layers surrounding the resistive element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/16—Resistor networks not otherwise provided for
-
- 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
- H01C7/126—Means for protecting against excessive pressure or for disconnecting in case of failure
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermistors And Varistors (AREA)
Abstract
The invention discloses a kind of zinc oxide explosion-proof lightning arresters, belong to arrester technical field, including insulating cylinder, composite sheath and the core group being fixed in insulating cylinder, to the lower and upper through-hole for being distributed and being circumferentially distributed around insulating cylinder inner wall there are three being set on insulating cylinder inner wall, through-hole outer wall is equipped with groove in lead to the hole site, groove inner bottom surface is plane, and through-hole is located at groove inner bottom surface middle position, is fixed in groove and seals cooperation with groove and in the sheet rubber for blocking through-hole；It is compared with tradition, through-hole is blocked using thinner sheet rubber, its is easier for installation time saving, it improves efficiency, and due to blocking up material without filling in inside through-hole, the obstruction discharged to internal pressure is preferably reduced, so that the pressure release inside insulating cylinder is abundant much sooner, further increases explosion-proof performance；In addition through-hole is in from bottom to top and around insulating cylinder circle distribution, and preferably guarantee internal pressure multi-faceted can discharge.
Description
Technical field
The present invention relates to arrester technical fields, more particularly to a kind of zinc oxide explosion-proof lightning arrester.
Background technique
Zinc-Oxide Arrester is a kind of Novel lightning arrester that the seventies grow up, it is mainly by Zinc-oxide piezoresistor
It constitutes, the coating outer cover of Zinc-Oxide Arrester mainly has porcelain housing and composite sheath, and compared with porcelain housing, it has composite sheath
Better explosion-proof performance and advantage small in size, existing Zinc-Oxide Arrester is more common thus；However only simple packet
It covers composite sheath and the higher demand of people can not meet for the explosion-proof performance raising of Zinc-Oxide Arrester, people are also in oxygen thus
Change in the explosion-proof performance of zinc arrester also in continuous Improvement；It is more preferable that through-hole is usually opened up on internal insulating cylinder
Release inside pressure to preferably improve explosion-proof performance, it is compound but in this way when carrying out composite sheath cladding operation
The material of housing is easy to penetrate into insulating cylinder by through-hole, is easy to generate interference effect to internal resistor disc in this way；And it is directed to
This disadvantage ensures that cladding is multiple in the prior art also it has been proposed that directly set rubber stopper sprue in through-hole top plug in this way
When closing housing, the case where not penetrating into；But filling in sprue due to it is the cylindricality block with through-hole interference fit, plug sets operative employee
Make laborious and wastes time, low efficiency；In addition it usually requires to fill in stifled through-hole completely, also results in internal pressure in this way
Release influenced by cylindricality block it is big, internal pressure be difficult in time sufficiently release, can it is biggish reduce pressure releasing effect, from
And explosion-proof performance is influenced to a certain degree.
In addition opening up from top to down for usually symmetry is opened up for the through-hole of insulating cylinder in the prior art, it is such to open
Hole number is more, and processing cost improves, and is difficult to ensure the multi-faceted release of insulating cylinder internal pressure.
Summary of the invention
In order to overcome the drawbacks of the prior art, technical problem to be solved by the present invention lies in propose that a kind of zinc oxide is explosion-proof
Arrester is formed by opening up the groove that inner bottom surface is plane on each lead to the hole site of insulation drum outer wall by the groove
Mounting platform fixes sheet rubber, and stifled through-hole is filled in by sheet rubber, blocks up mode compared with traditional plug, does not need in through-hole
Portion is filled, but by lid set in the way of to cover block through-hole, compared with tradition, blocked using thinner sheet rubber
Through-hole, it is easier for installation time saving, it improves efficiency, and due to, without filling in stifled material, preferably being reduced internal inside through-hole
The obstruction of portion's pressure release further increases explosion-proof performance so that the pressure release inside insulating cylinder is abundant much sooner；
In addition in from bottom to top and around insulating cylinder circle distribution, preferably guarantee internal pressure multi-faceted can discharge through-hole, improve
The releasing effect of pressure, and guarantee that through-hole opens up quantity, simplify manufacturing procedure, to reduce cost.
To achieve this purpose, the present invention adopts the following technical scheme: a kind of zinc oxide explosion-proof lightning arrester, including insulating cylinder, packet
The composite sheath being overlying on outside the insulating cylinder and the core group being fixed in the insulating cylinder, the core group include being located at the insulation
Cylinder in several resistor discs and be fixed on the aluminium electrode at both ends in the insulating cylinder, the aluminium electrode to the resistor disc shape
At clamping；
It is set on the insulating cylinder inner wall logical there are three being circumferentially distributed to lower and upper distribution and around the insulating cylinder inner wall
Hole, the adjacent through-hole are equally spaced in vertical direction, and the adjacent through-hole is 120 ° in the projection angle of vertical direction；
Groove is equipped on the insulation drum outer wall around the through-hole, the groove inner bottom surface is plane, the through-hole
Positioned at groove inner bottom surface middle position, it is fixed in the groove with groove sealing cooperation and described logical in blocking
The sheet rubber in hole.
Optionally, the groove inner bottom surface is equipped with several concave holes around through-hole distribution, the sheet rubber and institute
The one side for stating the fixed fitting of groove inner bottom surface is equipped with several protrusions with concave hole cooperation.
Optionally, the composite sheath is silastic material, and the sheet rubber is with the composite sheath with the silicon of material
Sheet rubber.
Optionally, the insulating cylinder is epoxy resin cylinder.
Optionally, the composite sheath be externally provided with several the first full skirts with the composite sheath one and it is several and
The second full skirt that first full skirt is interspersed in vertical direction, the number of the quantity of first full skirt and second full skirt
Amount is consistent, and the distance between the distance between adjacent described first full skirt h1 and adjacent described second full skirt h2 are consistent, and described the
Ratio between one full skirt diameter d1 and the second full skirt diameter d2 is (1.3~1.4): 1.
The invention has the benefit that the present invention is by opening up inner bottom surface on each lead to the hole site of insulation drum outer wall
The groove of plane forms mounting platform by the groove to fix sheet rubber, stifled through-hole is filled in by sheet rubber, compared with tradition
Plug block up mode, do not need to be filled through-hole inside, but by lid set in the way of to cover block through-hole, compared with biography
System, through-hole is blocked using thinner sheet rubber, it is easier for installation time saving, improve efficiency, and due to through-hole inside
Stifled material is not filled in, the obstruction discharged to internal pressure is preferably reduced, so that the pressure release inside insulating cylinder is more
In time sufficiently, explosion-proof performance is further increased；In addition through-hole preferably guarantees in from bottom to top and around insulating cylinder circle distribution
Internal pressure multi-faceted can discharge, and improve the releasing effect of pressure, and guarantee that through-hole opens up quantity, simplify manufacturing procedure,
To reduce cost.
Detailed description of the invention
Fig. 1 is a kind of zinc oxide explosion-proof lightning arrester cross-sectional view that the specific embodiment of the invention provides.
Fig. 2 is a kind of expanded view for zinc oxide explosion-proof lightning arrester insulating cylinder that the specific embodiment of the invention provides.
Fig. 3 is a kind of zinc oxide explosion-proof lightning arrester through-hole of specific embodiment of the invention offer in the projection of vertical direction
Schematic diagram.
Fig. 4 is a kind of zinc oxide explosion-proof lightning arrester overall structure diagram that the specific embodiment of the invention provides.
Fig. 5 is a kind of zinc oxide explosion-proof lightning arrester partial schematic diagram that the specific embodiment of the invention provides.
In figure: 1, insulating cylinder；11, through-hole；12, groove；121, concave hole；21, resistor disc；22, aluminium electrode；3, compound outer
Set；31, the first full skirt；32, the second full skirt；4, sheet rubber；41, raised.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
As shown in figures 1 and 3, the explosion-proof gap arrester of a kind of zinc oxide including insulating cylinder 1, is coated on answering outside insulating cylinder 1
The core group closing housing 3 and being fixed in insulating cylinder 1, core group include several resistor discs 21 in insulating cylinder 1 and are fixed on
The aluminium electrode 22, aluminium electrode 22 at both ends form resistor disc 21 and clamp in insulating cylinder 1；Specifically, as shown in Figure 1, insulating cylinder 1
Inside is equipped with cavity, and several resistor discs 21 are fixed on cavity middle position, and aluminium electrode 22 is then distributed in the both ends of cavity and right
Resistor disc (21) forms clamping, and the outermost sealing of composite sheath 3 is coated on outside insulating cylinder 1 and aluminium electrode 22, opens up
There is the connector being electrically connected for aluminium electrode 22.
As shown in Figures 2 and 3, there are three being set on 1 inner wall of insulating cylinder circumferentially to lower and upper distribution and around 1 inner wall of insulating cylinder
The through-hole 11 of distribution, adjacent through-holes 11 are equally spaced in vertical direction, and adjacent through-holes 11 are in the projection angle of vertical direction
120°；Specifically, as shown in 1 expanded view of insulating cylinder in Fig. 2, on insulating cylinder 1, through-hole 11 is distributed 11 overall distribution of through-hole
Region it is corresponding with the region that resistor disc 21 is placed, in the vertical direction, through-hole 11 is equally spaced, as shown in figure 3, through-hole
11 in the projection angle of vertical direction be 120 °, indicates through-hole 11 between the projection of vertical direction to be angularly distributed；It is whole
For body, preferably guarantees the more than enough orientation release of the pressure energy in 21 region of internal resistance piece, improve the releasing effect of pressure, and
Guarantee that through-hole 11 opens up quantity, simplifies manufacturing procedure, to reduce cost.
As shown in figure 5,1 outer wall of insulating cylinder is equipped with groove 12 around through-hole 11,12 inner bottom surface of groove is plane, through-hole 11
Positioned at 12 inner bottom surface middle position of groove, it is fixed in groove 12 and seals cooperation with groove 12 and in the rubber for blocking through-hole 11
Piece 4；Specifically, as shown in the partial schematic diagram of Fig. 4, wherein in 1 outer wall of insulating cylinder in being opened up on 11 position of through-hole and through-hole
11 concentric grooves 12 form the mounting platform for installing sheet rubber 4, and 12 inner bottom surface of further groove is plane, guarantee
Cooperation between sheet rubber 4 and groove 12 seals shape, and wherein sheet rubber 4 cementation can be got on by way of glue；In addition originally
12 shape of groove in embodiment can be round, ellipse, rectangular etc., and specifically without limitation, the depth of groove 12 can
With 2mm~5mm, guarantee that sheet rubber 4 will not be blocked up, to maximumlly guarantee the release of 1 internal pressure of insulating cylinder.
Generally speaking, the present invention is plane by opening up inner bottom surface on 11 position of each through-hole of 1 outer wall of insulating cylinder
Groove 12 forms mounting platform by the groove 12 to fix sheet rubber 4, stifled through-hole 11 is filled in by sheet rubber 4, compared with biography
The plug of system blocks up mode, does not need to be filled to inside through-hole 11, but by lid set in the way of to cover block through-hole 11, compared with
In tradition, through-hole 11 is blocked using thinner sheet rubber 4, it is easier for installation time saving, it improves efficiency, and due to logical
Without filling in stifled material inside hole 11, the obstruction discharged to internal pressure is preferably reduced, so that the pressure inside insulating cylinder 1
Release is abundant much sooner, further increases explosion-proof performance；In addition through-hole 11 is in from bottom to top and around 1 circle distribution of insulating cylinder,
It preferably guarantees that internal pressure multi-faceted can discharge, and improves the releasing effect of pressure, and guarantees that through-hole 11 opens up quantity,
Simplify manufacturing procedure, to reduce cost.
Optionally, as shown in figure 4,12 inner bottom surface of groove is equipped with several concave holes 121 being distributed around through-hole 11, sheet rubber
4 are equipped with several protrusions 41 cooperated with concave hole 121 with the fixed one side being bonded of 12 inner bottom surface of groove；Specifically, raised
41 with sheet rubber 4 be integral structure, can by injection molding, wherein by protrusion 41 with concave hole 121 be embedded cooperation from
And sheet rubber 4 is fixedly mounted, it is easy for installation.
Optionally, specifically, composite sheath 3 is silastic material, and sheet rubber 4 is with composite sheath 3 with the silicon of material
Sheet rubber 4；Composite sheath 3 made of silicon rubber has preferable insulation performance, higher resistance to pollution performance, good explosion-proof
Can, it is small in size, light-weight, not cracky, sealed reliable, excellent ageing-resistant performance the advantages that；In the present embodiment, sheet rubber 4
It is made of same material, can be more convenient to process.
Optionally, insulating cylinder 1 is epoxy resin cylinder；Specifically, insulating cylinder 1 made of epoxy resin has preferable exhausted
Edge, stability, it is ageing-resistant the advantages that.
Optionally, as shown in Figure 1, composite sheath 3 be externally provided with several 3 one with composite sheath the first full skirts 31 and
Several the second full skirts 32 being interspersed with the first full skirt 31 in vertical direction, the quantity of the first full skirt 31 and the second full skirt 32
Quantity is consistent, and the distance between the distance between adjacent first full skirt 31 h1 and adjacent second full skirt 32 h2 are consistent, the first full skirt
Ratio between 32 diameter d2 of 31 diameter d1 and the second full skirt is 1.3~1.4:1；Specifically, by the first full skirt 31 and
The distribution of second full skirt 32 and structure size design, which can be improved, can further increase creepage distance, reinforced insulation effect.
The present invention is described with reference to the preferred embodiments, and those skilled in the art know, of the invention not departing from
In the case where spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.The present invention is not by this
The limitation of specific embodiment disclosed in place, other embodiments fallen into claims hereof belong to protection of the present invention
Range.
Claims (5)
1. a kind of zinc oxide explosion-proof lightning arrester, it is characterised in that:
Including insulating cylinder (1), it is coated on the outer composite sheath (3) of the insulating cylinder (1) and is fixed in the insulating cylinder (1)
Core group, the core group include several resistor discs (21) in the insulating cylinder (1) and are fixed on the insulating cylinder (1)
Aluminium electrode (22), the aluminium electrode (22) at interior both ends form the resistor disc (21) and clamp；
Set on insulating cylinder (1) inner wall there are three to it is lower and upper distribution and be circumferentially distributed around the insulating cylinder (1) inner wall
Through-hole (11), the adjacent through-hole (11) are equally spaced in vertical direction, and the adjacent through-hole (11) is in the projection of vertical direction
Angle is 120 °；
Groove (12) are equipped with around the through-hole (11) on insulating cylinder (1) outer wall, groove (12) inner bottom surface is flat
Face, the through-hole (11) are located at the groove (12) inner bottom surface middle position, be fixed in the groove (12) with it is described recessed
Slot (12) sealing cooperates and in the sheet rubber (4) for blocking the through-hole (11).
2. a kind of zinc oxide explosion-proof lightning arrester as described in claim 1, it is characterised in that:
Groove (12) inner bottom surface is equipped with several concave holes (121) around the through-hole (11) distribution, the sheet rubber (4)
Several protrusions (41) with the concave hole (121) cooperation are equipped with the fixed one side being bonded of the groove (12) inner bottom surface.
3. a kind of zinc oxide explosion-proof lightning arrester as described in claim 1, it is characterised in that:
The composite sheath (3) is silastic material, and the sheet rubber (4) is with the composite sheath (3) with the silicon rubber of material
Film (4).
4. a kind of zinc oxide explosion-proof lightning arrester as described in claim 1, it is characterised in that:
The insulating cylinder (1) is epoxy resin cylinder.
5. a kind of zinc oxide explosion-proof lightning arrester as described in claim 1, it is characterised in that:
The composite sheath (3) is externally provided with several the first full skirts (31) with the composite sheath (3) one and several and institute
State the second full skirt (32) that the first full skirt (31) is interspersed in vertical direction, the quantity of first full skirt (31) and described the
The quantity of two full skirts (32) is consistent, the distance between adjacent described first full skirt (31) h1 and adjacent second full skirt (32) it
Between distance h2 it is consistent, ratio between the first full skirt (31) diameter d1 and second full skirt (32) diameter d2 be (1.3~
1.4): 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811436349.4A CN110047634A (en) | 2018-11-28 | 2018-11-28 | A kind of zinc oxide explosion-proof lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811436349.4A CN110047634A (en) | 2018-11-28 | 2018-11-28 | A kind of zinc oxide explosion-proof lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110047634A true CN110047634A (en) | 2019-07-23 |
Family
ID=67273270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811436349.4A Pending CN110047634A (en) | 2018-11-28 | 2018-11-28 | A kind of zinc oxide explosion-proof lightning arrester |
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| Country | Link |
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| CN (1) | CN110047634A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116844806A (en) * | 2023-06-19 | 2023-10-03 | 大连法伏安电器有限公司 | Double-layer explosion-proof device of composite outer sleeve lightning arrester and forming method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5608597A (en) * | 1994-05-13 | 1997-03-04 | Asea Brown Boveri Ab | Surge arrester |
| CN1801407A (en) * | 2006-01-11 | 2006-07-12 | 成都铁达电子有限责任公司 | Long life explosion-proof type piezoresistor |
| CN1877754A (en) * | 2005-06-09 | 2006-12-13 | 西安电瓷研究所 | Metal oxide lightning arrester |
| CN206574557U (en) * | 2017-02-04 | 2017-10-20 | 安徽大山电气有限公司 | A kind of explosion-proof type lightning arrester |
| CN208873563U (en) * | 2018-11-28 | 2019-05-17 | 劳伦斯电气有限公司 | A kind of zinc oxide explosion-proof lightning arrester |
-
2018
- 2018-11-28 CN CN201811436349.4A patent/CN110047634A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5608597A (en) * | 1994-05-13 | 1997-03-04 | Asea Brown Boveri Ab | Surge arrester |
| CN1877754A (en) * | 2005-06-09 | 2006-12-13 | 西安电瓷研究所 | Metal oxide lightning arrester |
| CN1801407A (en) * | 2006-01-11 | 2006-07-12 | 成都铁达电子有限责任公司 | Long life explosion-proof type piezoresistor |
| CN206574557U (en) * | 2017-02-04 | 2017-10-20 | 安徽大山电气有限公司 | A kind of explosion-proof type lightning arrester |
| CN208873563U (en) * | 2018-11-28 | 2019-05-17 | 劳伦斯电气有限公司 | A kind of zinc oxide explosion-proof lightning arrester |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116844806A (en) * | 2023-06-19 | 2023-10-03 | 大连法伏安电器有限公司 | Double-layer explosion-proof device of composite outer sleeve lightning arrester and forming method thereof |
| CN116844806B (en) * | 2023-06-19 | 2024-02-06 | 大连法伏安电器有限公司 | Double-layer explosion-proof device of composite outer sleeve lightning arrester and forming method thereof |
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Application publication date: 20190723 |
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