CN108717925A - A kind of mutual inductor, high-voltage and current-limitation fuse and its ram - Google Patents
A kind of mutual inductor, high-voltage and current-limitation fuse and its ram Download PDFInfo
- Publication number
- CN108717925A CN108717925A CN201810782458.5A CN201810782458A CN108717925A CN 108717925 A CN108717925 A CN 108717925A CN 201810782458 A CN201810782458 A CN 201810782458A CN 108717925 A CN108717925 A CN 108717925A
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- Prior art keywords
- ram
- tube
- voltage
- current
- fusible link
- 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.)
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Links
- 239000004593 Epoxy Substances 0.000 claims abstract description 41
- 230000003116 impacting effect Effects 0.000 claims abstract description 36
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000006004 Quartz sand Substances 0.000 claims abstract description 14
- 229910001200 Ferrotitanium Inorganic materials 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims abstract description 11
- 239000004576 sand Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 5
- 239000010949 copper Substances 0.000 abstract description 5
- 229910052802 copper Inorganic materials 0.000 abstract description 5
- 230000008439 repair process Effects 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 abstract description 2
- 229910001369 Brass Inorganic materials 0.000 abstract 1
- 239000010951 brass Substances 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- RRLHMJHRFMHVNM-BQVXCWBNSA-N [(2s,3r,6r)-6-[5-[5-hydroxy-3-(4-hydroxyphenyl)-4-oxochromen-7-yl]oxypentoxy]-2-methyl-3,6-dihydro-2h-pyran-3-yl] acetate Chemical compound C1=C[C@@H](OC(C)=O)[C@H](C)O[C@H]1OCCCCCOC1=CC(O)=C2C(=O)C(C=3C=CC(O)=CC=3)=COC2=C1 RRLHMJHRFMHVNM-BQVXCWBNSA-N 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 208000025274 Lightning injury Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920002955 Art silk Polymers 0.000 description 1
- 229910001006 Constantan Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
- H01H85/042—General constructions or structure of high voltage fuses, i.e. above 1000 V
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/18—Casing fillings, e.g. powder
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
Abstract
The invention belongs to high voltage electrical apparatus technical field more particularly to a kind of ram and include the high-voltage and current-limitation fuse of the ram.The setting that the present invention passes through titanium steel silk, the first copper tube, insulation sleeve, outer sleeve, elastomeric element, impacting tube, stainless steel wire, the second copper tube, spacing ring and brass pad in ram, it is the setting for including above-mentioned ram and retainer ring, epoxy tube, the first outer cap, fixed mechanism, quartz sand and the second outer cap, it realizes when overhead transmission line breaks down, the guilty culprit position indicative signal on circuit can explicitly be provided, to in time, accurately debug, the time of breakdown repair has been saved；The present invention provides a kind of size is smaller, conducive to the 10KV overhead transmission line mutual inductor protection high-voltage and current-limitation fuses of 10KV overhead transmission line mutual inductors are built in, the present invention is effectively protected overhead transmission line mutual inductor, prevents large-area power-cuts.
Description
Technical field
The invention belongs to high voltage electrical apparatus technical field more particularly to a kind of ram and include the high-voltage and current-limitation of the ram
Fuse.
Background technology
10KV overhead transmission line mutual inductors currently on the market have the following defects in use:
One, 10KV overhead transmission lines mutual inductor does not have any protection in circuit at present, and one the problem of line short occurs,
Large-area power-cuts to occur.
Two, it currently, protecting the fuse of voltage transformer in the market, is substantially all in low current without signal designation work(
Can and it be unable to charged for replacement, when a failure occurs, when cannot intuitively find out guilty culprit position, the in this way judgement of meeting delay faults
Between.
Three, the high-voltage current-limiting fuse for protecting voltage transformer of the prior art, size is larger, is unfavorable for being built in 10KV
Overhead transmission line mutual inductor.
Four, in the prior art, high-voltage current-limiting fuse for potential transformer melt is to be connected with 3 filaments, cannot provide
The indication signal of specific guilty culprit position.
Invention content
An object of the present invention is to provide a kind of 10KV overhead transmission line mutual inductors protection use with route protection function
High-voltage and current-limitation fuse；The second purpose is to provide one kind when a failure occurs, can provide specific guilty culprit position instruction letter
Number, to 10KV overhead transmission line mutual inductor protection high-voltage and current-limitation fuses that are timely, accurately debugging；The third purpose is
There is provided that a kind of size is smaller, conducive to the 10KV overhead transmission line mutual inductor protection high pressure limits of 10KV overhead transmission line mutual inductors are built in
Flow fuse.
To achieve the above object, the technical proposal of the invention is realized in this way：
A kind of ram of high-voltage and current-limitation fuse includes at least top for open outer sleeve and by outer sleeve opening
End cap is connected on the impacting tube in outer sleeve, and impacting tube top closure bottom end has through-hole, and outer sleeve bottom end also has and impacting tube
The concentric through-hole in bottom end hits tube inner chamber top and is equipped with pad, also compressed between impacting tube bottom end upper surface and pad lower surface
Flexible component, pad lower surface are fixedly connected with one end of the first fusible link, and the other end of the first fusible link, which sequentially passes through, to be hit
The bottom end through-hole for hitting cylinder and outer sleeve extends to outside outer sleeve.
The elastomeric element be spring, a length of 70mm of spring, race diameter 5.5mm, inner ring diameter 4.7mm,
Pop-up strength is 20N~30N.
The pad lower surface center is vertically and fixedly provided with the second fixing pipe, and pad lower surface passes through the second fixing pipe and the
One end of one fusible link is fixedly connected, and the other end of the first fusible link extends to the one of the part outside outer sleeve and the first fixing pipe
End is fixedly connected, and the other end of the first fixing pipe is fixedly connected with the second fusible link.
First fusible link and the second fusible link is titanium steel silk.
First fusible link and the second fusible link is a fusible link, which extends to the part outside outer sleeve
Run through the first fixing pipe through the through-hole at the first fixing pipe axle center.
Fixed by spacing ring between the apical lateral wall and outer sleeve open end inner wall of the impacting tube, impacting tube and
The bottom end through hole of outer sleeve is connected with insulation sleeve, and the through-hole that the first fusible link passes through is useful at insulation sleeve axle center.
A kind of high-voltage and current-limitation fuse, including the ram, further include epoxy tube, and ram is fixed on epoxy tube one
In the port at end and the port is blocked, and the impacting tube top of ram is protruding to outside epoxy tube, the first of ram bottom end is molten
Fracture of wire is fixedly connected with the other end inner wall of epoxy tube, and remaining space fills quartz sand in epoxy tube.
The quartz sand is glass sand, and the glass sand grit of different meshes is pressed：The grit quality of 30-40 mesh
Than being 40-45% for the grit mass ratio of 9-11%, 40-50 mesh, the grit mass ratio of 50-60 mesh is 30-35%, 60-80 mesh
Grit mass ratio be≤12%, remaining≤3% be uniformly mixed.
One end outside that the epoxy tube fixes ram is socketed with the first outer cap, and the first outer cap center is provided with round logical
The top in hole, ram is socketed and is sealed with epoxy tube by retainer ring, and the impacting tube top of ram passes through the first outer cap
Circular through hole is protruding to outside the first outer cap through-hole；The other end that first fusible link of ram bottom end passes through hanging wire piece and epoxy tube
It is fixedly connected；The outer wall of epoxy tube connection hanging wire bit end is socketed with the second outer cap；The pipe diameter of the epoxy tube is 15-
25mm。
A kind of mutual inductor, including the high-voltage and current-limitation fuse.
Beneficial effects of the present invention：The present invention passes through ram, retainer ring, epoxy tube, the first outer cap, fixed mechanism, quartz
The setting of sand and the second outer cap realizes when overhead transmission line breaks down, can explicitly provide the guilty culprit position on circuit
Indication signal is set, in time, accurately debug, has saved the time of breakdown repair；The present invention provides a kind of sizes
It is smaller, conducive to the 10KV overhead transmission line mutual inductor protection high-voltage and current-limitation fuses of 10KV overhead transmission line mutual inductors are built in, this
Invention is effectively protected overhead transmission line mutual inductor, prevents large-area power-cuts, ensure that the safety of supply line.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is schematic structural view of the invention；
Fig. 2 is ram structural schematic diagram of the present invention；
Fig. 3 is epoxy tube structural schematic diagram of the present invention；
Fig. 4 is the second outer cap structure schematic diagram of the invention；
Fig. 5 is the first outer cap structure schematic diagram of the invention；
Fig. 6 is insulation sleeve structural schematic diagram of the present invention.
In figure, the second outer caps of 1-；2- epoxy tubes；3- quartz sands；4- titanium steel silks；5- rams；The first outer caps of 6-；7- cards
Circle；8- hanging wire pieces；The first fixing pipes of 9-；10- insulation sleeves；11- outer sleeves；12- elastomeric elements；13- impacting tubes；14- first is molten
Fracture of wire；The second fixing pipes of 15-；16- spacing rings；17- pads
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
Embodiment one：
A kind of ram as shown in figs. 1,2 and 6, a kind of ram of high-voltage and current-limitation fuse, it is characterised in that：
It is socketed in the impacting tube 13 in outer sleeve 11 including at least the outer sleeve 11 that top is opening and by 11 open end of outer sleeve, is hit
Hitting 13 top closure bottom end of cylinder, there is through-hole, 11 bottom end of outer sleeve also to have the through-hole concentric with 13 bottom end of impacting tube, impacting tube
13 inner cavities top are equipped with pad 17, and elastomeric element is also compressed between 13 bottom end upper surface of impacting tube and 17 lower surface of pad, pad
17 lower surface of body is fixedly connected with one end of the first fusible link 14, the other end of the first fusible link 14 sequentially pass through impacting tube 13 and
The bottom end through-hole of outer sleeve 11 extends to outside outer sleeve 11.
Preferably the elastomeric element is spring 12, a length of 70mm of spring 12, race diameter 5.5mm, inner ring
A diameter of 4.7mm, pop-up strength are 20N~30N.
Preferably the 17 lower surface center of pad is vertically and fixedly provided with the second fixing pipe 15, and 17 lower surface of pad passes through
Second fixing pipe 15 is fixedly connected with one end of the first fusible link 14, and the other end of the first fusible link 14 extends to outside outer sleeve 11
Part be fixedly connected with one end of the first fixing pipe 9, the other end of the first fixing pipe 9 is fixedly connected with the second fusible link 4.
Preferably first fusible link 14 and the second fusible link 4 is titanium steel silk.
Preferably first fusible link 14 and the second fusible link 4 is a fusible link, which extends to outer
The through-hole at 9 axle center of the first fixing pipe of part outside sleeve 11 runs through the first fixing pipe 9.
Preferably pass through spacing ring between the 11 open end inner wall of apical lateral wall and outer sleeve of the impacting tube 13
16 fix, and the bottom end through hole of impacting tube 13 and outer sleeve 11 is connected with insulation sleeve 10, and insulation sleeve is useful for first at 10 axle center
The through-hole that fusible link 14 passes through.
In actual use, in order to ensure the pop-up dynamics of ram 5, the present invention is by the constantan of fluxing body in the prior art
Silk uses the second fusible link 4 instead, and the second fusible link 4 is in tight state, and elastomeric element is in elastic maximum rating；Make the second fusing
Silk 4 reaches preferably tenses ram before being not powered on, and when short circuit or lightning stroke or overload occurs in circuit, electric current reaches fuse
When protecting electric current to greatest extent, at the appointed time, fluxing body, that is, titanium steel silk fuses at a high temperature of electric current generates, in ram
Impacting tube 13 quickly popped up under the action of the i.e. spring under the compressive state of the elastomeric element in elastic maximum rating, give
Go out specific indication signal.The ram 5 of the present invention increases pop-up dynamics under the action of elastomeric element, has prevented fusing
After the drawbacks of can not popping up.A length of 70mm of spring 12, race diameter 5.5mm, inner ring diameter 4.7mm, pop-up strength are
20N~30N can meet installation dimension and require and realize its function, and opposite has saved cost.Insulation sleeve 10 is used and is cutd open
Face is T-shaped cylindrical rubber set, plays the role of good sealed insulation.First fusible link 14 uses titanium steel silk, by first
Fusible link 14 and the second fusible link are substituted with a titanium steel silk, and titanium steel silk one end is fixedly connected with 13 top of impacting tube, titanium steel silk
Other end hanging wire piece fixed position, redundance is compressed holds remaining portion to dismiss out with outer cap with epoxy ligament,
It ensure that tension and the fusing effect of titanium steel silk.First fusible link 14 and the second fusible link 4 are a fusible links, make tension effect
And stability is more preferable.Copper tube can be used in first fixing pipe 9 and the second fixing pipe 15；Pad 17 is made of red copper.
Embodiment two：
A kind of high-voltage and current-limitation fuse as shown in Figure 1, including ram 5, further include epoxy tube 2, and ram 5 is fixed on
In the port of 2 one end of epoxy tube and the port is blocked, and 13 top of impacting tube of ram 5 is protruding to outside epoxy tube 2, ram
First fusible link 14 of 5 bottom ends is fixedly connected with the other end inner wall of epoxy tube 2, and remaining space fills quartz sand in epoxy tube 2
3。
In actual use, the present invention is built in inside 10KV overhead transmission lines mutual inductor.When supply line generate short circuit,
Lightning stroke or overload, electric current reach the protection of fuse to greatest extent electric current when, at the appointed time, the fluxing body in ram 5
Quick fuse, main line are isolated with secondary side, quartz sand arc quenching protection, and ram pops up signal device, and mutual inductor is protected,
Service personnel, directly in fault point repair, more exchange device, substantially reduces trouble-shooting point according to the signal occurred on circuit
Time so that repairing in time, accurately, under the protection of the present invention, will not cause large-area power-cuts；Metering avoids misalignment, reduces
Energy loss.In the present invention, the first outer cap 6 and the second outer cap 1 are used for the sealing of epoxy pipe port, and epoxy tube 2 is fuse
Shell, the filling of quartz sand plays the role of preferable arc extinguishing under high temperature, when actually filling quartz sand, needs to reach sand
Fill the filling standard that closely knit, probe can not be inserted into.
Embodiment three：
A kind of high-voltage and current-limitation fuse as shown in Figure 1, on the basis of embodiment two, the quartz sand 3 is high-purity
The glass sand grit of quartz sand, different meshes is pressed：The grit mass ratio of 30-40 mesh is 9-11%, the grit matter of 40-50 mesh
Amount is than being 40-45%, and the grit mass ratio of 50-60 mesh is 30-35%, and the grit mass ratio of 60-80 mesh is≤12%, remaining≤
3% is uniformly mixed.
In actual use, the quartz sand in the present invention uses this arrangements, and arc extinguishing is made at a high temperature of playing well
With.
Example IV：
A kind of high-voltage and current-limitation fuse as shown in Figure 1, Figure 4 and Figure 5, on the basis of embodiment two, the epoxy
One end outside that pipe 2 fixes ram 5 is socketed with the first outer cap 6, and 6 center of the first outer cap is provided with circular through hole, the top of ram 5
End is socketed and is sealed with epoxy tube 2 by retainer ring 7, and 13 top of impacting tube of ram 5 passes through the circular through hole of the first outer cap 6
It is protruding to outside 6 through-hole of the first outer cap；First fusible link 14 of 5 bottom end of ram is solid by the other end of hanging wire piece 8 and epoxy tube 2
Fixed connection；The outer wall that epoxy tube 2 connects 8 end of hanging wire piece is socketed with the second outer cap 1；The pipe diameter of the epoxy tube 2 is 15-
25mm。
In actual use, epoxy tube 2 is the round tube shape structure of thin, the intermediate thickness of pipe wall of both ends tube wall and a diameter of 15-
25mm, the present invention is realized is arranged ram in the fusion tube of small diameter, this is difficult to accomplish in the prior art.It realizes
It is built in the 10KV overhead transmission line mutual inductor protection high-voltage and current-limitation fuses of 10KV overhead transmission line mutual inductors.Retainer ring 7 is adopted
With making the fixation between ram 5 and epoxy tube 2 more secured, while enhancing leakproofness.In actual use, hanging wire piece
8 be the cuboid copper sheet of the long a height of 3*1*0.15mm of * wide *, and one end of hanging wire piece 8 is fixed on titanium steel silk, for locking the
The tightened position of two fusible links 4；Second fusible link 4 is tensed to the maximum limit tightened with spring 12, hanging wire piece 8 is fixed on tension
Titanium steel silk close at the port of the in left side second outer cap, the left end of the second fusible link 4 is pressed on to the gap location of the second outer cap 1
Clamping preferably secures the second fusible link 4 in this way, it is allowed not shift and not turned off after by the power that outer cap and pipe compress.The
One outer cap 6 and the second outer cap 1 are circular bottle cap shape.In actual use, the first outer cap 6 and the second outer cap 1 use this technology
Scheme had both facilitated installation, there is the preferable function of realizing epoxy tube port sealing.
Embodiment five：
A kind of mutual inductor as shown in Figure 1, Figure 4 and Figure 5, including high-voltage and current-limitation fuse.
The present invention overcomes 10KV overhead transmission lines mutual inductor in the prior art in the actual use of 10KV overhead transmission lines
There is no any protection in circuit, one the problem of line short occurs, the problem of large-area power-cuts will occurs, even if in low current feelings
Under condition, also band signal instruction function can intuitively find out guilty culprit position, so as to shorten sentencing for failure when a failure occurs
The disconnected time.Size of the present invention is smaller, conducive to 10KV overhead transmission lines are built in.
In conclusion by means of the above-mentioned technical proposal of the present invention, by top for open outer sleeve 11 and by outer
11 open end of sleeve is socketed in the impacting tube 13 in outer sleeve 11, and 13 top closure bottom end of impacting tube has through-hole, outer sleeve 11
Also there is the through-hole concentric with 13 bottom end of impacting tube, 13 inner cavity top of impacting tube to be equipped with pad 17 for bottom end, on 13 bottom end of impacting tube
Elastomeric element is also compressed between 17 lower surface of surface and pad, company is fixed in 17 lower surface of pad and one end of the first fusible link 14
It connects, the other end of the first fusible link 14 sequentially passes through impacting tube 13 and the bottom end through-hole of outer sleeve 11 extends to outside outer sleeve 11
Ram setting is just set comprising ram 5, retainer ring 7, epoxy tube 2, the first outer cap 6, hanging wire piece 8, quartz sand 3 and the second outer cap 1
The high-voltage and current-limitation fuse set realizes when overhead transmission line breaks down, can explicitly provide the guilty culprit position on circuit
Indication signal is set, in time, accurately debug, has saved the time of breakdown repair；The present invention provides a kind of sizes
It is smaller, conducive to the 10KV overhead transmission line mutual inductor protection high-voltage and current-limitation fuses of 10KV overhead transmission line mutual inductors are built in, this
Invention is effectively protected overhead transmission line mutual inductor, prevents large-area power-cuts.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to
Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.
Technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, when the knot that conflicting or cannot achieve when will be understood that this technical solution occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection domain within.
Claims (10)
1. a kind of ram of high-voltage and current-limitation fuse, it is characterised in that：Including at least top be open outer sleeve (11) with
And the impacting tube (13) in outer sleeve (11) is socketed in by outer sleeve (11) open end, impacting tube (13) top closure bottom end has
Through-hole, outer sleeve (11) bottom end also have the through-hole concentric with impacting tube (13) bottom end, and impacting tube (13) inner cavity top is equipped with pad
Body (17) is also compressed with elastomeric element, pad (17) following table between impacting tube (13) bottom end upper surface and pad (17) lower surface
Face is fixedly connected with the one end of the first fusible link (14), and the other end of the first fusible link (14) sequentially passes through impacting tube (13) and outer
The bottom end through-hole of sleeve (11) extends to outer sleeve (11) outside.
2. a kind of ram of high-voltage and current-limitation fuse according to claim 1, it is characterised in that：The elastomeric element
For spring (12), a length of 70mm of spring (12), race diameter 5.5mm, inner ring diameter 4.7mm, pop-up strength be 20N~
30N。
3. a kind of ram of high-voltage and current-limitation fuse according to claim 1, it is characterised in that：The pad (17)
Lower surface center is vertically and fixedly provided with the second fixing pipe (15), and pad (17) lower surface passes through the second fixing pipe (15) and the first fusing
One end of silk (14) is fixedly connected, and the other end of the first fusible link (14) extends to the part of outer sleeve (11) outside and fixed with first
One end of pipe (9) is fixedly connected, and the other end of the first fixing pipe (9) is fixedly connected with the second fusible link (4).
4. a kind of ram of high-voltage and current-limitation fuse according to claim 3, it is characterised in that：First fusing
Silk (14) and the second fusible link (4) are titanium steel silks.
5. a kind of ram of high-voltage and current-limitation fuse according to claim 3 or 4, it is characterised in that：Described first
Fusible link (14) and the second fusible link (4) are a fusible links, which extends to the part first of outer sleeve (11) outside
Through-hole at fixing pipe (9) axle center runs through the first fixing pipe (9).
6. a kind of ram of high-voltage and current-limitation fuse according to claim 1, it is characterised in that：The impacting tube
(13) fixed by spacing ring (16) between apical lateral wall and outer sleeve (11) open end inner wall, impacting tube (13) and housing
The bottom end through hole of cylinder (11) is connected with insulation sleeve (10), is useful for what the first fusible link (14) passed through at insulation sleeve (10) axle center
Through-hole.
7. a kind of high-voltage and current-limitation fuse, it is characterised in that：Including claim 1-6 any one of them ram (5), also wrap
Include epoxy tube (2), ram (5) is fixed in the port of epoxy tube (2) one end and blocks the port, and ram (5) are hit
It hits cylinder (13) top and is protruding to epoxy tube (2) outside, first fusible link (14) of ram (5) bottom end is another with epoxy tube (2)
End inner wall is fixedly connected, the interior remaining space filling quartz sand (3) of epoxy tube (2).
8. a kind of high-voltage and current-limitation fuse according to claim 7, it is characterised in that：The quartz sand (3) is high-purity
The glass sand grit of quartz sand, different meshes is pressed：The grit mass ratio of 30-40 mesh is 9-11%, the grit matter of 40-50 mesh
Amount is than being 40-45%, and the grit mass ratio of 50-60 mesh is 30-35%, and the grit mass ratio of 60-80 mesh is≤12%, remaining≤
3% is uniformly mixed.
9. a kind of high-voltage and current-limitation fuse according to claim 7, it is characterised in that：Epoxy tube (2) fixation is hit
It hits on the outside of one end of device (5) and is socketed with the first outer cap (6), the first outer cap (6) center is provided with circular through hole, the top of ram (5)
End is socketed and is sealed with epoxy tube (2) by retainer ring (7), and impacting tube (13) top of ram (5) passes through the first outer cap (6)
Circular through hole be protruding to outside the first outer cap (6) through-hole；First fusible link (14) of ram (5) bottom end passes through hanging wire piece (8)
It is fixedly connected with the other end of epoxy tube (2)；The outer wall that epoxy tube (2) connection hanging wire piece (8) is held is socketed with the second outer cap (1)；
The pipe diameter of the epoxy tube (2) is 15-25mm.
10. a kind of mutual inductor, it is characterized in that：Including claim 7-10 any one of them high-voltage and current-limitation fuses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810782458.5A CN108717925A (en) | 2018-07-17 | 2018-07-17 | A kind of mutual inductor, high-voltage and current-limitation fuse and its ram |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810782458.5A CN108717925A (en) | 2018-07-17 | 2018-07-17 | A kind of mutual inductor, high-voltage and current-limitation fuse and its ram |
Publications (1)
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| CN201229907Y (en) * | 2008-05-29 | 2009-04-29 | 库柏西安熔断器有限公司 | High voltage wire current fuse for protection of transformer |
| CN101461113A (en) * | 2006-06-08 | 2009-06-17 | 德恩及索恩两合股份有限公司 | Overcurrent protection device for use in an overvoltage protection device, comprising an additional mechanical tripping device preferably designed as a striker |
| CN201608139U (en) * | 2010-01-22 | 2010-10-13 | 苏州市南光电器有限公司 | High-pressure current-limiting fuser with impactor positioning device |
| CN201655725U (en) * | 2010-03-18 | 2010-11-24 | 陕西振力电力科技有限公司 | High voltage current limiting fuse with fusing indication function |
| CN103441050A (en) * | 2013-09-18 | 2013-12-11 | 上海电器陶瓷厂有限公司 | Impactor for oil-immersed type fuse |
| CN208622670U (en) * | 2018-07-17 | 2019-03-19 | 西安苏熔电器有限公司 | A kind of mutual inductor, high-voltage and current-limitation fuse and its ram |
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2018
- 2018-07-17 CN CN201810782458.5A patent/CN108717925A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101461113A (en) * | 2006-06-08 | 2009-06-17 | 德恩及索恩两合股份有限公司 | Overcurrent protection device for use in an overvoltage protection device, comprising an additional mechanical tripping device preferably designed as a striker |
| CN201229907Y (en) * | 2008-05-29 | 2009-04-29 | 库柏西安熔断器有限公司 | High voltage wire current fuse for protection of transformer |
| CN201608139U (en) * | 2010-01-22 | 2010-10-13 | 苏州市南光电器有限公司 | High-pressure current-limiting fuser with impactor positioning device |
| CN201655725U (en) * | 2010-03-18 | 2010-11-24 | 陕西振力电力科技有限公司 | High voltage current limiting fuse with fusing indication function |
| CN103441050A (en) * | 2013-09-18 | 2013-12-11 | 上海电器陶瓷厂有限公司 | Impactor for oil-immersed type fuse |
| CN208622670U (en) * | 2018-07-17 | 2019-03-19 | 西安苏熔电器有限公司 | A kind of mutual inductor, high-voltage and current-limitation fuse and its ram |
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