CN205140664U - Big through -flow surge protector of single MOV chip - Google Patents
Big through -flow surge protector of single MOV chip Download PDFInfo
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- CN205140664U CN205140664U CN201520439948.7U CN201520439948U CN205140664U CN 205140664 U CN205140664 U CN 205140664U CN 201520439948 U CN201520439948 U CN 201520439948U CN 205140664 U CN205140664 U CN 205140664U
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Abstract
The utility model provides a big through -flow surge protector of single MOV chip, including the MOV chip, and then electrodes are led out, the division board, two and half circular dead rings, round disengaging plate, electrically conductive gasket, go up the electrode, the bottom electrode, circular insulating cover, spring and pilot lamp, MOV chip two sides covers has inferior metal first electrode and inferior metal second electrode, the end is drawn forth to last being provided with of extraction electrode, be provided with the rectangular hole on the division board plane, be provided with the tongue shape strip body and recess on the round disengaging plate plane, tongue shape strip body front end is equipped with the hole site, on, the bottom electrode respectively is provided with escape and external screw thread, and installation screw, weld assembly and conductive pad piece are fixed in in the circular insulating cover through last electrode and bottom electrode, the utility model provides a big through -flow surge protector of single MOV chip is reliable, safety, has promoted the chip flowing capability, has improved life, satisfies one type of lightning protection occasion demand.
Description
Technical field
The utility model relates to a kind of large through-flow surge absoption protector, the large through-flow surge absoption protection device (SPD) of modular of particularly a kind of single MOV chip assembling.
Background technology
Existing votage limit type device of surge protector has special non-linear voltage-current characteristics, mainly be made up of zinc oxide (ZnO) MOV (MetalOxideVaristors), once generation unusual condition, such as meet with thunderbolt, the interference of electromagnetic field, mains switch frequent movement, power system failure, make voltage spikes on circuit, more than the conducting voltage of MOV, conducting district will be entered, now electric current (I) and voltage (V) are in non-linear relation, generally be referred to as non linear coefficient (NonlinearityParameter), its value can reach tens of or up to a hundred, MOV impedance meeting step-down, only there is several ohm, allow overvoltage form burst current flow out, use electronic product or expensive component that protection connects,
Existing large through-flow surge absoption protection device adopts more than 2 through selecting, as many as tens becomes compared with the MOV chip Bing Lian Group of small size, though transient protection operating current can reach tens kilo-amperes to hundreds of kilo-ampere, but due to the otherness manufactured, the dispersiveness of electronic ceramic, the uneven Uniform of multi-disc parallel connection is caused to exist all the time, the result brought is: snap action is inconsistent, it is inconsistent that the every sheet of sheet in parallel absorbs energy, after long-time running, degree of aging is inconsistent, in multi-disc parallel-connection structure, the general Bian identical release unit of more than 2, due to chip differences, absorb capacity volume variance, it is also inconsistent that release unit departs from sensitivity, a wherein damage, device is caused to use and to scrap, waste resource.
Utility model content
For above-mentioned the deficiencies in the prior art, the utility model provides a kind of large through-flow surge absoption protection device of modular of being assembled by single MOV chip.
For achieving the above object, technical solution adopted in the utility model is:
The utility model provides a kind of single MOV chip large through-flow Surge Protector, comprise MOV chip, extraction electrode, division board, two semicircle shape dead rings, round disengaging plate, conductive spacer, top electrode, bottom electrode, round insulation cover, spring and indicator light, described MOV chip two sides is coated with base metal first electrode and base metal second electrode, described extraction electrode is provided with exit, described division board plane is provided with rectangular opening, the ligulate strip shape body that described round disengaging plate plane is provided with and groove, described ligulate strip shape body front end is provided with position, hole, described top electrode is provided with escape, top electrode external screw thread, top electrode installation screw and indicator lamp hole, match with described indicator lamp hole and be equipped with indicator light housing, described bottom electrode is provided with escape, bottom electrode external screw thread and bottom electrode installation screw, described round insulation cover internal diameter two end is provided with for described, the internal thread that bottom electrode spinning coordinates,
Described base metal first electrode and described extraction electrode are welded and fixed, described division board is placed on the exit of described extraction electrode by rectangular opening, described two semicircle shape dead rings are placed between division board and round disengaging plate, the extraction electrode exit that the Kong Weiyu of described ligulate strip shape body exposes division board welds together, described spring one end is fixed in the groove of round disengaging plate, the other end is fixed on the ligulate strip shape body of round disengaging plate, described indicator light one pole is welded with described round disengaging plate, another pole is welded on extraction electrode through round disengaging plate and division board, form weld assembly, described top electrode is by top electrode external thread rotary press-in round insulation cover internal thread, tighten and fix, described weld assembly is installed in round insulation cover, described indicator light is arranged in the indicator lamp hole of top electrode, described weld assembly other end is lined with conductive spacer, described bottom electrode, by screwing into round insulation cover internal thread, is tightened and fixes, and described weld assembly and conductive spacer are fixed in round insulation cover by described top electrode and described bottom electrode.
Further, the entirety of the large through-flow Surge Protector of single MOV chip after assembling is flattened cylinder, and external diameter 48 ~ 90mm is highly 35 ~ 100mm.
Further, round insulation cover inwall has screw thread, be convenient to screw with upper/lower electrode, and material is PC or PP or ABS or PTEE or glass epoxy resin.
Further, described single MOV chip diameter is diameter 40mm ~ 78mm.
Further, described bottom electrode installation screw surface is plane setting.
Further, described top electrode installation screw surface is the setting of convex protrusion shape.
Further, the ligulate strip shape body that described round disengaging plate plane is provided with and groove, described ligulate strip shape body front end is provided with position, hole, and material is the flexible scale copper of the band such as phosphor-copper or beryllium-bronze, and thickness is 0.3 ~ 0.8mm.
Further, described spring is stretching turriform spring.
Further, described division board plane is provided with rectangular opening, its size of division board and cylinder insulating case internal diameter match.
Further, described two semicircle shape dead rings are placed between division board and round disengaging plate, and material is PC or PP or ABS or PTEE or glass epoxy resin.
Further, described base metal first electrode is double-deck setting.
The beneficial effects of the utility model are:
1. monolithic major diameter MOV application improves product reliability, fail safe;
2. residual stress is little in the fabrication process, uniformity good for monolithic major diameter MOV chip;
3. increase hardware MOV chip two and increase area of dissipation, promote chip through-current capability, improve useful life;
4. the material of Bian high temperature resistant, electric arc of being fearless, high insulation makes round insulation cover, dead ring, division board, the accident of avoiding working of plastics high temperature deformation to cause;
5. the design in heavy wall chamber enhances anti-knock properties, improves explosion-proof flame-retardant characteristic;
6. independently divided disengaging space, is filled with Duo gas, departs from safer;
7. the through-current capacity of monolithic major diameter SPD meets a class lightning protection occasion demand at 60-200KA (under 8/20us condition) or 10 ~ 20KA (under 10/350us condition).
Accompanying drawing explanation
Fig. 1 is the structural representation of the large through-flow Surge Protector of a kind of single MOV chip of the utility model;
Fig. 2 is the equivalent circuit diagram of the large through-flow Surge Protector of a kind of single MOV chip of the utility model;
Fig. 3 is the another kind of MOV chip structure figure of the large through-flow Surge Protector of the utility model list MOV chip.
Embodiment
Specifically illustrate execution mode of the present utility model below in conjunction with accompanying drawing, accompanying drawing is only for reference and use is described, does not form the restriction to the utility model scope of patent protection.
Embodiment 1:
The utility model provides a kind of single MOV chip large through-flow Surge Protector, as shown in Figure 1, comprise MOV chip 1, extraction electrode 2, division board 3, two semicircle shape dead rings 4, round disengaging plate 5, conductive spacer 6, top electrode 7, bottom electrode 8, round insulation cover 9, spring 10 and indicator light 101, described upper/lower electrode 7, 8 equal tool escape and external screw threads, its material is aluminium or copper or iron etc., described spring 10 is stretching turriform spring, described single MOV chip 1 diameter is diameter 40mm ~ 78mm, general occasion enough uses, and (diameter is more than 80mm chip, owing to using the reason that electric pressure is low, thick about about the 3mm of its sheet, manufacturing cost is higher, do not advise using), described MOV chip 1 two sides is coated with base metal first electrode 11 and base metal second electrode 12, described extraction electrode 6 is provided with exit 61, described division board 3 plane is provided with rectangular opening 31, size and cylinder insulating case 9 internal diameter of division board 3 match.Described round disengaging plate 5 plane is provided with ligulate strip shape body 51 and groove 52, and described ligulate strip shape body 51 front end is provided with position, hole 511, and material is the flexible scale copper of the band such as phosphor-copper or beryllium-bronze, and its thickness is 0.3 ~ 0.8mm.Described two semicircle shape dead rings 4 are placed between division board 3 and round disengaging plate 5, and material is PC or PP or ABS or PTEE or glass epoxy resin etc.Described top electrode 7 is provided with top electrode escape 71, top electrode external screw thread 72, top electrode installation screw 73 and indicator lamp hole 74, match with described indicator lamp hole 74 and be equipped with indicator light housing 75, described bottom electrode 8 is provided with bottom electrode escape 81, bottom electrode external screw thread 82 and bottom electrode installation screw 83, described round insulation overlaps 9 internal diameter two ends and is provided with the internal thread 91 coordinated for described upper and lower electrode spinning, described bottom electrode installation screw 83 surface is plane setting, described top electrode installation screw 73 surface is the setting of convex protrusion shape, to install and difference; The material of described round insulation cover 9 is PC or PP or ABS or PTEE or glass epoxy resin etc.
Described base metal first electrode 11 is welded and fixed with described extraction electrode 2, described division board 3 is placed on the exit 61 of described extraction electrode by rectangular opening 31, described two semicircle shape dead rings 4 are placed between division board 3 and round disengaging plate 5, the position, hole 511 of described ligulate strip shape body 51 welds together with the extraction electrode exit 31 exposing division board 3, described spring 10 one end is fixed in the groove 552 of round disengaging plate 5, the other end is fixed on the ligulate strip shape body 51 of round disengaging plate 5, described indicator light 101 1 pole is welded with described round disengaging plate 5, another pole is welded on extraction electrode 2 through round disengaging plate 5 and division board 3, form weld assembly, the external screw thread 72 of top electrode 7 is applied fluid sealant and aims at the internal thread 91 that round insulation overlaps 9, screw-in is tightened, described weld assembly is installed in round insulation cover 4, described indicator light 101 is arranged in the indicator lamp hole 74 of top electrode 7, described weld assembly other end is lined with conductive spacer 6, external screw thread 82 place of described bottom electrode 8 coats fluid sealant, and the internal thread 91 aiming at round insulation cover 9 screws in, by regulating the quantity of conductive spacer 6, regulate and weld assembly compaction degree, do not allow to loosen, described weld assembly and conductive spacer 6 are fixed in round insulation cover 9 by described top electrode 7 and described bottom electrode 8, being inserted by the device assembled takes out in aeration equipment, utilize top electrode indicator lamp hole 74, deflate, then nitrogen or neon or radon Duo gas is filled with, again fluid sealant is coated at indicator light housing 75 edge, be pressed in top electrode indicator lamp hole 74, form the large through-flow Surge Protector of single MOV chip.
In the present embodiment, the large through-flow Surge Protector entirety of described single MOV chip is in flattened cylinder, and its external diameter 48 ~ 90mm, it is highly 35 ~ 100mm.
Fig. 2 is the equivalent circuit diagram of the large through-flow Surge Protector of this single MOV chip.When the electric current passed through in the large through-flow Surge Protector of this single MOV chip is excessive or MOV adstante febre; the temperature alloy that position, hole 511 place of ligulate strip shape body 51 is soldered melts; by ligulate strip shape body 51 pull-up under self resilience of ligulate strip shape body 51 and spring 10 double acting pulling force; disconnect the connection with MOV chip; indicator light 101 brightens, and plays the effect that Safe withdrawing runs.
Embodiment 2:
As shown in Figure 3, the difference of the present embodiment and embodiment 1 is: described base metal first electrode 11 is arranged for double-deck, base metal first electrode is divided into two layers, first electrode layer 111 is the bad material of weldability, as aluminum metal, for improving its weldability, the second electrode lay 112 is covered on the first electrode layer 111, the second electrode lay 112 is the material such as copper, nickel, also can not cover the second layer under specific circumstances, to reach economical and practical object.
Above disclosedly be only preferred embodiment of the present utility model, rights protection scope of the present utility model can not be limited with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (10)
1. the large through-flow Surge Protector of single MOV chip, it is characterized in that: comprise MOV chip, extraction electrode, division board, two semicircle shape dead rings, round disengaging plate, conductive spacer, top electrode, bottom electrode, round insulation cover, spring and indicator light, described MOV chip two sides is coated with base metal first electrode and base metal second electrode, described extraction electrode is provided with exit, described division board plane is provided with rectangular opening, described round disengaging plate plane is provided with ligulate strip shape body and groove, described ligulate strip shape body front end is provided with position, hole, described top electrode is provided with top electrode escape, top electrode external screw thread, top electrode installation screw and indicator lamp hole, described indicator lamp hole is configured with indicator light housing, described bottom electrode is provided with bottom electrode escape, bottom electrode external screw thread and bottom electrode installation screw, described round insulation cover internal diameter two end is provided with for described, the internal thread that bottom electrode spinning coordinates,
Described base metal first electrode and described extraction electrode are welded and fixed, described division board is placed on the exit of described extraction electrode by rectangular opening, described two semicircle shape dead rings are placed between division board and round disengaging plate, the extraction electrode exit that the Kong Weiyu of described ligulate strip shape body exposes division board welds together, described spring one end is fixed in the groove of round disengaging plate, the other end is fixed on the ligulate strip shape body of round disengaging plate, described indicator light one pole is welded with described round disengaging plate, another pole is welded on extraction electrode through round disengaging plate and division board, form weld assembly, described top electrode is by top electrode external thread rotary press-in round insulation cover internal thread, tighten and fix, described weld assembly is inserted in round insulation cover, described indicator light is arranged in the indicator lamp hole of top electrode, described weld assembly other end is lined with conductive spacer, described bottom electrode external thread rotary press-in round insulation cover internal thread, tighten and fix, described weld assembly and conductive spacer are fixed in round insulation cover by described top electrode and described bottom electrode.
2. the large through-flow Surge Protector of one according to claim 1 single MOV chip, is characterized in that: it is overall in flattened cylinder, and its external diameter 48 ~ 90mm, it is highly 35 ~ 100mm.
3. the large through-flow Surge Protector of one according to claim 1 single MOV chip, is characterized in that: round insulation cover inwall has screw thread, be convenient to screw with upper/lower electrode, and material is PC or PP or ABS or PTEE or glass epoxy resin.
4. the large through-flow Surge Protector of one according to claim 1 single MOV chip, is characterized in that: the diameter of described single MOV chip is 40mm ~ 78mm.
5. the large through-flow Surge Protector of one according to claim 1 single MOV chip; it is characterized in that: described upper/lower electrode is equipped with escape and external screw thread; its material is aluminium or copper or iron, and bottom electrode installation screw surface is arranged for plane, and top electrode installation screw surface is convex setting.
6. the large through-flow Surge Protector of one according to claim 1 single MOV chip; it is characterized in that: described round disengaging plate plane is provided with ligulate strip shape body and groove; described ligulate strip shape body front end is provided with position, hole; material is the flexible scale copper of band of phosphor-copper or beryllium-bronze, and thickness is 0.3 ~ 0.8mm.
7. the large through-flow Surge Protector of one according to claim 1 single MOV chip, is characterized in that: described spring is stretching turriform spring.
8. the large through-flow Surge Protector of one according to claim 1 single MOV chip, is characterized in that: described division board plane is provided with rectangular opening, its size of division board and cylinder insulating case internal diameter match.
9. the large through-flow Surge Protector of one according to claim 1 single MOV chip, is characterized in that: described two semicircle shape dead rings are placed between division board and round disengaging plate, and material is PC or PP or ABS or PTEE or glass epoxy resin.
10. the large through-flow Surge Protector of one according to claim 1 single MOV chip, is characterized in that: described base metal first electrode is arranged for double-deck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520439948.7U CN205140664U (en) | 2015-06-24 | 2015-06-24 | Big through -flow surge protector of single MOV chip |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520439948.7U CN205140664U (en) | 2015-06-24 | 2015-06-24 | Big through -flow surge protector of single MOV chip |
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| Publication Number | Publication Date |
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| CN205140664U true CN205140664U (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520439948.7U Active CN205140664U (en) | 2015-06-24 | 2015-06-24 | Big through -flow surge protector of single MOV chip |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112398108A (en) * | 2020-12-02 | 2021-02-23 | 辰硕电子(九江)有限公司 | Current surge-proof protector with over-temperature protection for high-voltage piezoresistor |
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2015
- 2015-06-24 CN CN201520439948.7U patent/CN205140664U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112398108A (en) * | 2020-12-02 | 2021-02-23 | 辰硕电子(九江)有限公司 | Current surge-proof protector with over-temperature protection for high-voltage piezoresistor |
| CN112398108B (en) * | 2020-12-02 | 2022-11-25 | 辰硕电子(九江)有限公司 | Current surge-proof protector with over-temperature protection for high-voltage piezoresistor |
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