CN202120841U - Closed tube type open fuse with packing - Google Patents
Closed tube type open fuse with packing Download PDFInfo
- Publication number
- CN202120841U CN202120841U CN2011202553129U CN201120255312U CN202120841U CN 202120841 U CN202120841 U CN 202120841U CN 2011202553129 U CN2011202553129 U CN 2011202553129U CN 201120255312 U CN201120255312 U CN 201120255312U CN 202120841 U CN202120841 U CN 202120841U
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- fuse
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- indicating
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- elasticity
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Abstract
The utility model discloses a closed tube type open fuse with packing, which solves the technical problem that existing built-in fuse indicating devices are high in rejection rate and inaccurate in indication. The fuse comprises an insulation casing and a fuse indicating device, melt and the packing for arc extinguishing are filled in the insulation casing, two ends of the melt are connected with end caps used for closing two ends of the melt, the fuse indicating device comprises a signal wire disposed in the packing, and an elastic indicating part disposed outside the insulation casing, the signal wire is connected with the melt in parallel, an elastic end of the elastic indicating part is tensioned and kept in a tightened state by the aid of one end of the signal wire, and the other end of the elastic indicating part is fixed onto one end cap. The closed tube type open fuse with the packing has the advantages that when in packing filling process and during use, the elastic indicating part can not be blocked by quartz sand particles for arc extinguishing, and the technical problem that the existing built-in fuse indicating devices are high in rejection rate and inaccurate in indication is solved effectively.
Description
Technical field
The utility model relates to the fuse technical field, especially a kind of stopped pipe type open type fuse of filleding and endcloseing cartridge fuse-link.
Background technology
Fuse is to be used for protecting the protection electrical equipment that electric equipment is avoided transshipping and short circuit current damages; Closed tube fuse with patch seal is as a kind of fuse of important kind, comprises insulation shell as the one of which, is arranged on electrode that the melt in the insulation shell is connected with arc suppression filling, contact base, fusing indicating device, melt two ends and the end cap that seals the melt both ends; Melt is connected on by in the protective circuit; When circuit breaks down, melt heating fusing, and then open circuit reaches the purpose of protection; Simultaneously, the action of fusing indicating device provides the indication that melt has fused.Early stage closed tube fuse with patch seal is from security consideration; All be designed to closed or enclosed type; Be that whole fuse is all encapsulated by opaque housing, only offer transparent window at fuse nameplate place, such fuse structure is complicated; Production cost is high, is replaced by open type or open type fuse just gradually.So-called open type fuse is meant that fuse need not encapsulate, and parts such as the housing of fuse, electrode and end cap are all visible in the process of use.Perhaps transmission line is medium difficult by the place of personnel's contact in the non-electricity industry on transformer to consider the actual use of fuse; Even make open type; Also can not cause extra danger, so fuse develops into open type gradually to the professional electrician that possibly touch fuse.
Existing fusing indicating device of filleding and endcloseing cartridge fuse-link stopped pipe type open type fuse all is built in end cap inboard and the insulation shell; Generally comprise column indication piece, spring, spring base and holding wire; Holding wire, spring and spring base all are arranged in the insulation shell; The part of its medi-spring and column indication piece is positioned at the space that spring base and end cap are wrapped to form, and holding wire is parallelly connected with melt, and holding wire one end is connected with end cap after passing through insulation shell; The other end links to each other with the tail end of column indication piece after passing spring base and spring, and the inboard of spring base and another end cap is welded on one.Behind the tension signal silk, column indication piece retraction makes spring under the effect of spring base, be in compressive state.During operate as normal, holding wire pulling column indication piece forces spring to be in compressive state, in column indication piece retraction end cap and the housing; In case the melt fusing, then parallelly connected with melt holding wire instant melting breaks off, and spring recovers to promote the column indication piece and exposes outside the end cap indication of having fused for operating personnel's fuse.Above-mentioned fusing indicating device all is positioned at insulation shell in normal operation; Be built-in indicating device; Because the arc suppression filling of filling in the fusion tube is that particle diameter is a 30-80 purpose quartz sand particle, when can quartz sand, quartz sand is stuck between the flexible hole wall that passes through of permission column indication piece on column indication piece and the end cap easily; Make indication piece after holding wire fusing, can not effectively eject, increased the scrappage of fuse products; In use, the quartz sand that comes off is stuck between the flexible hole wall that passes through of permission column indication piece on column indication piece and the end cap equally easily, makes indication piece after holding wire fusing, can not effectively eject, and then also can't discern the operating state of fuse.And, the above-mentioned fusing indicating device complex structure that constitutes by a plurality of parts, processing cost is high.
Notification number is that the patent documentation of CN2817055Y discloses a kind of knife-edge fuse; Comprise melt, electrode, support, holding wire, upper end cover, bottom end cover, indicating device, filler; Indicating device comprises that indication piece is connected with the elastic tip of an end with the elasticity bar, and the holding wire that the other end links to each other with melt, indicating device also comprise the bar that the elastic tip with the elasticity bar is connected; Bar relative resilient indication piece is vertically vertical to be provided with, and cooperates with the outer wall close neighbour of support.Through the bar that on original elasticity bar, is connected again; Bar is arranged between support and the nameplate; Lower end at bar is provided with indicating piece; And the position of corresponding indicating piece offers through hole on nameplate, reaches to need not to take apart to be installed in the outer housing of support and just can to reach and observe the purpose whether melt in the fuse fuses, and is convenient direct.But the indicating device complex structure in the above-mentioned patent documentation, processing cost is high, because parts are numerous, annexation is complicated simultaneously, any one parts or annexation go wrong all can cause indicating malfunctioning.Above-mentioned patent documentation concrete disclosed be the filled and endclosed cartridge fuse-link fusing indicating device of stopped pipe type protected cut-out of traditional being used for, be to show fusing information in the name plate set, its indicating device structure is complicated more, cost is higher.
The utility model content
For this reason; The utility model is to be solved to be the technical problem of the high and misregister of percent defective that the built-in fusing indicating device of stopped pipe type open type fuse brings of filleding and endcloseing cartridge fuse-link, and a kind of rate and indicate the external stopped pipe type open type fuse of filleding and endcloseing cartridge fuse-link of device for fusing accurately of effectively reducing the number of rejects and seconds is provided.
Further, this patent provides a kind of indicating structure stopped pipe type open type fuse of simply filleding and endcloseing cartridge fuse-link.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is following: a kind of stopped pipe type open type fuse of filleding and endcloseing cartridge fuse-link comprises insulation shell, the filler that is used for arc extinguishing of melt that is equipped with in the said insulation shell and filling; The electrode that said melt two ends connect; And the end cap that seals said melt two ends, also comprising a fusing indicating device, said indicating device comprises holding wire that places said filler and the elasticity indication piece that places said insulation shell and the said end cap outside; Wherein, said holding wire is parallelly connected with said melt, and the one of which end links to each other with end cap, and the other end is strained the elastic tip of said elasticity indication piece and made it keep tensioned state; Said elasticity indication piece is fixed on said another end cap outside.
Said elasticity indication piece is the elasticity indicating piece.
Said elasticity indicating piece is the stainless steel spring sheet.
The technique scheme of the utility model is compared prior art and is had the following advantages:
The utility model discloses a kind of novel stopped pipe type open type fuse of filleding and endcloseing cartridge fuse-link, its indicating device comprises holding wire that places filler and the elasticity indication piece outside the insulation shell that places that is connected with holding wire, because the elasticity indication piece is placed in outside the insulation shell; During the can filler, the quartz sand particle that arc extinguishing is used can not block the elasticity indication piece; Simultaneously, quartz sand can not block the elasticity indication piece yet and causes misregister during use, efficiently solves the technical problem of the high and misregister of scrappage that existing built-in fusing indicating device brings.Simultaneously, holding wire directly links to each other with the elasticity indication piece, has reduced the use of intermediate connector, makes that the fuse structure of the utility model is simpler, connects more reliably, and it is more accurate to indicate.
Description of drawings
For the content that makes the utility model is more clearly understood,, the utility model is done further detailed explanation, wherein below according to the specific embodiment of the utility model and combine accompanying drawing
Fig. 1 is the structural representation of the stopped pipe type open type fuse of filleding and endcloseing cartridge fuse-link of an embodiment of the utility model.
Reference numeral is expressed as among the figure: 1-insulation shell, 2-filler, 3-electrode, 4-holding wire, 5-stainless steel spring sheet, 6-end cap, 7-melt.
Embodiment
Below will combine accompanying drawing, and use following examples that the utility model is further set forth.
The stopped pipe type open type fuse structure of filleding and endcloseing cartridge fuse-link of an embodiment of the utility model is as depicted in figs. 1 and 2; Comprise insulation shell 1; The melt 7 that is equipped with in the said insulation shell 1 and the filler that is used for arc extinguishing 2 of filling; The electrode 3 that said melt 7 two ends connect; And the end cap 6 that seals said melt 7 two ends, also comprising a fusing indicating device, said indicating device comprises holding wire 4 that places said filler 2 and the stainless steel spring sheet 5 that places the said insulation shell 1 and said end cap 6 outsides; Wherein, said holding wire 4 is parallelly connected with said melt 7, and the one of which end links to each other with said melt 7, and the other end is strained the elastic tip of said stainless steel spring sheet 5 and made it keep tensioned state; The other end of said stainless steel spring sheet 5 is fixed on the said end cap 6.The end and the said stainless steel spring sheet 5 that connect the holding wire 4 of said stainless steel spring sheet 5 elastic tip all are positioned at said insulation shell 1 outside; Said stainless steel spring sheet 5 is connected with the melt 7 that is positioned at said insulation shell 1 inside through said holding wire 4, and the elastic tip indicating fuse of straining said stainless steel spring sheet 5 through said holding wire 4 is in normal operating conditions.
The indicating device of fuse in the prior art, holding wire directly is not connected with indication piece, connects through intermediate connecting part, causes the indicating device complex structure, and processing cost is high; The damage of any one intermediate connector all possibly make indication piece not work, and causes whole indicating device not worked; And the indicating device in the present embodiment is made up of with holding wire 4 the stainless steel spring sheet 5 as indication piece, and simple in structure without any need for intermediate connecting part, processing cost is low, connects reliable.
All be positioned at said insulation shell 1 outside owing to connect an end and the said stainless steel spring sheet 5 of the holding wire 4 of said stainless steel spring sheet 5 elastic tip; So; When the said filler 2 that can is made up of quartz sand particle, said quartz sand particle can not be stuck in said stainless steel spring sheet 5 in the above-mentioned pore.The utility model in use; Replaced indication piece and spring in original design by being arranged on said insulation shell 1 outside elasticity indicating piece, filling filler 2 quartz sand particles that are used for arc extinguishing in the said insulation shell 1 can not be stuck in above-mentioned pore yet and cause said stainless steel spring sheet 5 indicating status inaccurate.Thereby thoroughly solved the built-in fuse of existing indicating device because packing materials such as quartz sand block the elastomeric element of indicating device and cause the normally problem of indicating fuse state of indication piece, increased dependability.
The detailed process of work is following: insert by protective circuit through the stopped pipe type open type fuse series connection of filleding and endcloseing cartridge fuse-link of said electrode 3 with the foregoing description; When electric current is excessive in by protective circuit; Said melt 7 fusing; Also moment is melted with said melt 7 parallelly connected said holding wires 4; The elastic tip of said stainless steel spring sheet 5 is owing to lose the tension of said holding wire 4, and its elastic tip becomes the open configuration away from said end cap 6 by the normal tensioned state of pressing close to said end cap 6, thus the indication of having fused for operating personnel's fuse.
As a distortion of the foregoing description, said stainless steel spring sheet also can be the elasticity indicating piece replacement of other elasticity indicating piece of the prior art such as other material; Perhaps replace,, just belong to the protection range of the utility model as long as the elasticity indication piece is arranged on the purpose that insulation shell all can be realized the utility model outward by other elasticity indication piece.
Obviously, the foregoing description only be for explanation clearly done for example, and be not qualification to execution mode.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all execution modes.And conspicuous variation of being extended out thus or change still are among the protection range of the utility model.
Claims (3)
1. stopped pipe type open type fuse of filleding and endcloseing cartridge fuse-link; Comprise insulation shell (1); The melt (7) that is equipped with in the said insulation shell (1) and the filler that is used for arc extinguishing (2) of filling; The electrode (3) that said melt (7) two ends connect; And the end cap (6) that seals said melt (7) two ends, also comprise a fusing indicating device, it is characterized in that: said indicating device comprises the holding wire (4) that places said filler (2) and places said insulation shell (1) and the elasticity indication piece in said end cap (6) outside; Wherein, said holding wire (4) is parallelly connected with said melt (7), and the one of which end links to each other with said end cap (6), and the other end is strained the elastic tip of said elasticity indication piece and made it keep tensioned state; The other end of said elasticity indication piece is fixed on another said end cap (6).
2. the stopped pipe type open type fuse of filleding and endcloseing cartridge fuse-link according to claim 1, it is characterized in that: said elasticity indication piece is the elasticity indicating piece.
3. the stopped pipe type open type fuse of filleding and endcloseing cartridge fuse-link according to claim 2 is characterized in that: said elasticity indicating piece is stainless steel spring sheet (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202553129U CN202120841U (en) | 2011-07-19 | 2011-07-19 | Closed tube type open fuse with packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202553129U CN202120841U (en) | 2011-07-19 | 2011-07-19 | Closed tube type open fuse with packing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202120841U true CN202120841U (en) | 2012-01-18 |
Family
ID=45461883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202553129U Expired - Lifetime CN202120841U (en) | 2011-07-19 | 2011-07-19 | Closed tube type open fuse with packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202120841U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779692A (en) * | 2012-07-31 | 2012-11-14 | 人民电器集团有限公司 | Melt formed by folding processing method and melt body using same |
| CN106463314A (en) * | 2014-05-28 | 2017-02-22 | 库珀技术公司 | Compact high voltage power fuse and methods of manufacture |
| WO2019034088A1 (en) * | 2017-08-15 | 2019-02-21 | 比亚迪股份有限公司 | Fuse structure and fuse device |
-
2011
- 2011-07-19 CN CN2011202553129U patent/CN202120841U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779692A (en) * | 2012-07-31 | 2012-11-14 | 人民电器集团有限公司 | Melt formed by folding processing method and melt body using same |
| CN106463314A (en) * | 2014-05-28 | 2017-02-22 | 库珀技术公司 | Compact high voltage power fuse and methods of manufacture |
| CN106463314B (en) * | 2014-05-28 | 2019-02-15 | 库珀技术公司 | Gamut power fuse |
| WO2019034088A1 (en) * | 2017-08-15 | 2019-02-21 | 比亚迪股份有限公司 | Fuse structure and fuse device |
| CN109411309A (en) * | 2017-08-15 | 2019-03-01 | 比亚迪股份有限公司 | Fusing structure and fuse |
| CN109411309B (en) * | 2017-08-15 | 2020-03-31 | 比亚迪股份有限公司 | Fusing structure and fuse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120118 |
|
| CX01 | Expiry of patent term |