CN201435365Y - High-voltage current-limiting fuse cutout - Google Patents
High-voltage current-limiting fuse cutout Download PDFInfo
- Publication number
- CN201435365Y CN201435365Y CN2009201208302U CN200920120830U CN201435365Y CN 201435365 Y CN201435365 Y CN 201435365Y CN 2009201208302 U CN2009201208302 U CN 2009201208302U CN 200920120830 U CN200920120830 U CN 200920120830U CN 201435365 Y CN201435365 Y CN 201435365Y
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- conductive cap
- cap
- conductive
- hole
- enclosed cavity
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Abstract
The utility model discloses a high-voltage current-limiting fuse cutout which comprises a fusing tube and conductive cap covers. The conductive cap covers are arranged at the two ends of the fusing tube, an inner cavity of the fusing tube is enclosed into an enclosed cavity by the conductive cap covers, a fusing wire is arranged in the fusing tube, the two ends of the fusing wire are respectivelyconnected on the conductive cap covers in an electrical manner, quartz sand used for arc extinction is arranged in the enclosed cavity in a filling manner, conductive caps are cylinder-shaped, semi-open containing cavities are arranged in the conductive caps, the conductive caps are covered on through holes of the conductive covers, the lower rims of the conductive caps are fixed on the peripheralrims of the conductive covers opposite to the through holes in a welding manner, the containing cavities of the conductive caps are communicated with the enclosed cavity by the through holes, and thequartz sand which is communicated is arranged in the containing cavities of the conductive caps and the enclosed cavity in a filling manner. The high-voltage current-limiting fuse cutout has the advantages of good arc extinction performance, high production efficiency, excellent waterproof sealing property and the like.
Description
Technical field
The utility model relates to a kind of high voltage protective electrical equipment, specifically is meant a kind of overload of power transformer and high voltage electric power equip ment, high-voltage and current-limitation fuse of short-circuit protection of being used for.
Background technology
Traditional high-voltage and current-limitation fuse, its structure includes fuse tube, the two ends that are arranged at fuse tube are provided with the conduction cap and constitute an enclosed cavity, this conduction cap and fuse tube coupling part seal by cement, be provided with two ends in the described fuse tube and be electrically connected on the fusible link that conductive cap covers respectively, be provided with the quartz sand that arc extinguishing is used in the described enclosed cavity.Its shortcoming of traditional high-voltage and current-limitation fuse of this structure is:
1., arc extinction performance is relatively poor, especially when the fuse vertically-arranged, the quartz sand that arc extinguishing is used sinks, and causes fusible link not have quartz sand to carry out arc extinguishing around being connected in that end of upper end conduction cap, thereby causes being very easy to occur burning phenomenon.
2., the production cycle is longer, owing to seal by cement between traditional conduction cap and the fuse tube, but total institute is known, cement solidification often needs must the time, therefore, by cement seal, the production cycle is longer, and the sealing of cement seal is also relatively poor, occurs the infiltration phenomenon easily.
The utility model content
The purpose of this utility model is to overcome the shortcoming and defect that prior art exists, and provides a kind of arc extinction performance good, production efficiency height, the high-voltage and current-limitation fuse that waterproof sealing is good.
For achieving the above object, the technical solution of the utility model is, comprise fuse tube, be arranged at the conduction cap at fuse tube two ends, described conduction cap includes conductive cap and conductive cap, the center of described conductive cap is provided with through hole, described conductive cap seal cover is on the through hole and be fixedly welded on all-in-one-piece conduction cap on the end face of conductive cap, described conduction cap seals into enclosed cavity with the inner chamber of fuse tube, be provided with two ends in the described fuse tube and be electrically connected on fusible link on the conductive cap respectively, be filled with the quartz sand that arc extinguishing is used in the described enclosed cavity, described conductive cap is tubular, be provided with half-open cavity volume in it, this conduction cap is on the through hole of conductive cap, and the lower edge of this conductive cap is fixedly welded on the outer peripheral edges of conductive cap with respect to through hole, and the cavity volume of described conductive cap is communicated with enclosed cavity by through hole, and is filled with the quartz sand that communicates in the cavity volume of this conductive cap and the enclosed cavity.By this setting, when high-voltage and current-limitation fuse vertically-arranged of the present utility model uses, when even the quartz sand sedimentation occurring, the quartz sand that is filled in the cavity volume of conductive cap is followed, guarantee fusible link be connected in tie point on the conductive cap of upper end around still filled up quartz sand, avoid occurring electric arc and burn out this equipment, greatly improved the stability that equipment uses.
The two ends end position that further setting is described fuse tube is provided with the draw-in groove of annular indent, the lower edge bending inlay card of described conductive cap is fixed in this draw-in groove, and be provided with packing holder in the end face periphery of described conductive cap, be provided with O-ring seals between the end face of sealing ring support and fuse tube.By this setting, it is relatively poor to have solved traditional usefulness cement seal sealing, the problem that the production cycle is long.
Further being provided with is inner side recessed form of described packing holder by relative its periphery of conductive cap.This setting, the mechanism of having simplified packing holder is provided with, and cost is low, is provided with conveniently.
Further be provided with is that described fusible link includes at least 5 sections fuses and is connected and forms.By this setting, can guarantee that multiple spot fusing appears in fusible link, and can control the resistance value of fusible link effectively.
Further being provided with is that the conductive cap center of arbitrary end is provided with through hole, is provided with the bump sheet of flechette-type in this through hole, and this bump sheet inboard is provided with the compression spring, and the bottom of this bump sheet is connected with the other end and is fixed on the secondary fusible link that the opposite side conductive cap covers.By this setting, after fusible link fusing, secondary fusible link because and fusible link be that shunting in parallel is provided with, so this moment secondary fusible link electric current sharply increase, secondary fusible link fusing causes clashing into sheet and is compressed spring and ejects, and plays the fusing deixis.
Below in conjunction with specification drawings and specific embodiments the utility model is done further introduction.
Description of drawings
Fig. 1 the utility model embodiment structural representation;
Fig. 2 the utility model embodiment vertically-arranged status architecture schematic diagram.
Embodiment
Embodiment of the present utility model as shown in Figure 1, comprise fuse tube 1, be arranged at the conduction cap 2 at fuse tube two ends, described conduction cap 2 includes conductive cap 21 and conductive cap 22, the center of described conductive cap 21 is provided with through hole 211, described conductive cap 22 seal covers are on the through hole 211 and be fixedly welded on all-in-one-piece conduction cap 2 on the end face of conductive cap 21, described conduction cap 2 seals into enclosed cavity 11 with the inner chamber of fuse tube 1, be provided with two ends in the described fuse tube 1 and be electrically connected on fusible link 3 on the conductive cap 21 respectively, be filled with the quartz sand 4 that arc extinguishing is used in the described enclosed cavity 11, described conductive cap 22 is tubular, be provided with half-open cavity volume 221 in it, this conductive cap 22 covers on the through hole 211 of conductive cap 21, and the lower edge of this conductive cap 22 is fixedly welded on the outer peripheral edges of conductive cap 21 with respect to through hole, the cavity volume 221 of described conductive cap 22 is communicated with enclosed cavity 11 by through hole 211, and is filled with the quartz sand 4 that communicates in the cavity volume 221 of this conductive cap 22 and the enclosed cavity 11.When high-voltage and current-limitation fuse of the present utility model uses at the vertically-arranged state (as shown in Figure 2), when even the quartz sand sedimentation occurring, the quartz sand that is filled in the cavity volume 221 of conductive cap 22 is come in the enclosed cavity 11 under then, guaranteed on the conductive cap 21 that is connected in the upper end of fusible link 3 tie point around still filled up quartz sand, avoid occurring electric arc and burn out this equipment, greatly improved the stability that equipment uses.
In addition, present embodiment, it is the draw-in groove 12 that the two ends end position of described fuse tube 1 is provided with annular indent, the lower edge bending inlay card of described conductive cap 21 is fixed in this draw-in groove 12, and be provided with packing holder 212 in the end face periphery of described conductive cap 21, be provided with O-ring seals 5 between the end face of sealing ring support 212 and fuse tube 1.It is relatively poor that present embodiment has solved traditional usefulness cement seal sealing, and the problem that the production cycle is long makes to the utlity model has production efficiency height, advantages such as good sealing effect.Present embodiment is for the setting that simplifies the internal structure of an organization, and described packing holder 212 is by recessed the forming of inner side of conductive cap 21 relative its peripheries.
In addition, present embodiment is that described fusible link 3 includes at least 5 sections fuses and is connected and forms, and can guarantee that multiple spot fusing appears in fusible link 3, and it is higher to control the accuracy of resistance value of fusible link 3 effectively.
In addition, present embodiment, conductive cap 22 centers of arbitrary end are provided with through hole 222, these through hole 222 inboards are provided with the bump sheet 6 of flechette-type, these bump sheet 6 inboards are provided with compression spring 7, and the bottom of this bump sheet 6 is connected with the other end and is fixed on the secondary fusible link 8 that the opposite side conductive cap covers, so after fusible link 3 fusing, secondary fusible link 8 because and fusible link 3 be that shunting in parallel is provided with, so this moment, the electric current of secondary fusible link 8 sharply increased, secondary fusible link 8 heating fusing cause clashing into sheet 6 and are compressed the spring ejection, play the fusing deixis.
Claims (5)
1. high-voltage and current-limitation fuse, comprise fuse tube, be arranged at the conduction cap at fuse tube two ends, described conduction cap includes conductive cap and conductive cap, the center of described conductive cap is provided with through hole, described conductive cap seal cover is on the through hole and be fixedly welded on all-in-one-piece conduction cap on the end face of conductive cap, described conduction cap seals into enclosed cavity with the inner chamber of fuse tube, be provided with two ends in the described fuse tube and be electrically connected on fusible link on the conductive cap respectively, be filled with the quartz sand that arc extinguishing is used in the described enclosed cavity, it is characterized in that: described conductive cap is tubular, be provided with half-open cavity volume in it, this conduction cap is on the through hole of conductive cap, and the lower edge of this conductive cap is fixedly welded on the outer peripheral edges of conductive cap with respect to through hole, the cavity volume of described conductive cap is communicated with enclosed cavity by through hole, and is filled with the quartz sand that communicates in the cavity volume of this conductive cap and the enclosed cavity.
2. high-voltage and current-limitation fuse according to claim 1, it is characterized in that: the two ends end position of described fuse tube is provided with the draw-in groove of annular indent, the lower edge bending inlay card of described conductive cap is fixed in this draw-in groove, and be provided with packing holder in the end face periphery of described conductive cap, be provided with O-ring seals between the end face of sealing ring support and fuse tube.
3. high-voltage and current-limitation fuse according to claim 2 is characterized in that: described packing holder is by recessed the forming of inner side of relative its periphery of conductive cap.
4. according to claim 1 or 3 described high-voltage and current-limitation fuses, it is characterized in that: described fusible link includes at least 5 sections fuses and is connected and forms.
5. high-voltage and current-limitation fuse according to claim 4, it is characterized in that: the conductive cap center of arbitrary end is provided with through hole, be provided with the bump sheet of flechette-type in this through hole, this bump sheet inboard is provided with the compression spring, and the bottom of this bump sheet is connected with the other end and is fixed on the secondary fusible link that the opposite side conductive cap covers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201208302U CN201435365Y (en) | 2009-05-22 | 2009-05-22 | High-voltage current-limiting fuse cutout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201208302U CN201435365Y (en) | 2009-05-22 | 2009-05-22 | High-voltage current-limiting fuse cutout |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201435365Y true CN201435365Y (en) | 2010-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201208302U Expired - Fee Related CN201435365Y (en) | 2009-05-22 | 2009-05-22 | High-voltage current-limiting fuse cutout |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201435365Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543613A (en) * | 2012-02-21 | 2012-07-04 | 王晨侠 | Small fuse with fusing indication function |
| CN103489728A (en) * | 2013-10-23 | 2014-01-01 | 烟台东方威思顿电气有限公司 | High-voltage fuse |
| CN103700551A (en) * | 2013-12-22 | 2014-04-02 | 广西和谐电力科技有限公司 | Arc extinguishing current limiting fuse adopting silicon rubber porcelain insulators |
| CN109245077A (en) * | 2018-09-17 | 2019-01-18 | 上海电科臻和智能科技有限公司 | Integrated back-up protection lightning protection for power supply |
| TWI717764B (en) * | 2019-06-21 | 2021-02-01 | 功得電子工業股份有限公司 | fuse |
| CN113767445A (en) * | 2019-05-14 | 2021-12-07 | 韩国端子工业株式会社 | High-voltage fuse with prevent ring and break away from structure |
-
2009
- 2009-05-22 CN CN2009201208302U patent/CN201435365Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543613A (en) * | 2012-02-21 | 2012-07-04 | 王晨侠 | Small fuse with fusing indication function |
| CN103489728A (en) * | 2013-10-23 | 2014-01-01 | 烟台东方威思顿电气有限公司 | High-voltage fuse |
| CN103700551A (en) * | 2013-12-22 | 2014-04-02 | 广西和谐电力科技有限公司 | Arc extinguishing current limiting fuse adopting silicon rubber porcelain insulators |
| CN109245077A (en) * | 2018-09-17 | 2019-01-18 | 上海电科臻和智能科技有限公司 | Integrated back-up protection lightning protection for power supply |
| CN113767445A (en) * | 2019-05-14 | 2021-12-07 | 韩国端子工业株式会社 | High-voltage fuse with prevent ring and break away from structure |
| CN113767445B (en) * | 2019-05-14 | 2024-03-26 | 韩国端子工业株式会社 | High-voltage fuse with ring-separation preventing structure |
| US11996253B2 (en) | 2019-05-14 | 2024-05-28 | Korea Electric Terminal Co., Ltd. | High voltage fuse having ring separation prevention structure |
| TWI717764B (en) * | 2019-06-21 | 2021-02-01 | 功得電子工業股份有限公司 | fuse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100331 Termination date: 20180522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |