CN205092215U - Outdoor drop out fuse of strenghthened type - Google Patents
Outdoor drop out fuse of strenghthened type Download PDFInfo
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- CN205092215U CN205092215U CN201520850408.8U CN201520850408U CN205092215U CN 205092215 U CN205092215 U CN 205092215U CN 201520850408 U CN201520850408 U CN 201520850408U CN 205092215 U CN205092215 U CN 205092215U
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- electrode connecting
- connecting plate
- fusing carrier
- fuse
- bottom electrode
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Abstract
The utility model discloses an outdoor drop out fuse of strenghthened type, upward electrode connecting plate below one side is fixed and is provided with inflexible limiting plate of going up, it has flexible cushion collar to go up the limiting plate overcoat, bottom electrode connecting plate below one side is fixed and is provided with inflexible lower limit plate, the lower limit plate overcoat has flexible cushion collar, the utility model discloses an upward be provided with the limiting plate on the electrode connecting plate, be provided with lower limit plate on the bottom electrode connecting plate, melt a closed in -process and melt the piece and carry on spacingly carrying when carrying, simultaneously lower limit plate goes up the cover has the cushion collar, can effectively avoid the fusible core fusing back to carry to melt and cut -off with the jet stream wind because of gravity rotates that assault and lower limit plate takes place rigidity collision fracture, while on the limiting plate cover have the cushion collar, in the time of can avoiding carrying out the distant switching -in in closing operation, carry and melt piece and the rigid collision of last limiting plate emergence.
Description
Technical field
The utility model relates to fuse field, is specifically related to a kind of reinforced outdoor drop-out fuse.
Background technology
Fuse switch is the most frequently used a kind of protective switch of the short circuit of 10kV electric pressure distribution line branch line and distribution transformer; it have economy, easy to operate, adapt to the features such as outdoor environment is strong, be widely used in 10kV electric pressure distribution line and distribution transformer as protection with carry out equipment throwing, cut operation.During work, the moving contact at cartridge fuse two ends relies on fuse (melt) to fasten, and after upper moving contact being pushed " duckbilled " projection, the upper static contact that phosphorus bronze sheet etc. are made heads on moving contact, so cartridge fuse to be stuck in " duckbilled " securely inner.When short circuit current is by fuse failure, produce electric arc, the vulcanized fiber tube of cartridge fuse liner produces a large amount of gas because being shut cartridge fuse upper end under arcing, and gas sprays to lower end, blows out electric arc.Due to fuse failure, the upper lower moving contact of cartridge fuse loses the fastening force of fuse, and under the effect of cartridge fuse self gravitation and upper and lower fixed contact spring leaf, cartridge fuse falls rapidly, and circuit is disconnected, excision faulty section circuit or faulty equipment.
Fuse in the 10kV line system of reality and on distribution transformer can not correct operation, and one of its reason is, electrician specialty technical ability is not good enough, lacks a sense of responsibility, and does not carry out maintenance and the maintenance of fuse switch throughout the year; Two of reason is, fuse switch fault of construction or product quality inferior, can not to draw flexibly, closing operation.Two reasons reduce the function of fuse switch.Often occur in reality reliably to cut-off short trouble, even if or cut-off short circuit current, but fusing carrier has broken or has fractureed, and cannot change and reuse.The trip-out rate of circuit and the failure rate of distribution transformer are remained high.Simultaneously, along with capacity constantly increases in network system, short circuit current constantly increases, require that the short circuit current that fuse switch cut-offs is also increasing, according to the operation result of network system and the test data of test mechanism were added up in the past, after cut-offfing short circuit current, (each base of Standard and fusing carrier reliably can effectively cut-off three times to fuse switch at every turn, refer to GB/T15166.3-2008 table 14), fusing carrier all fractures or divides, GB/T15166.3-2008<< high-voltage alternating fuse the 3rd part cannot be met: injection fuse box >> the 5.2nd clause is " after action, the damage of any mechanical aspects should not have influence on falls function, should not hinder simultaneously and take out and change fusing carrier " yet, but actual conditions are, when cut-offfing at every turn because fusing carrier drop-out current energy is huge, due to the reason of fuse switch fault of construction, in interrupting process, when fusing carrier declines, with position limiting structure generation hard collision, fusing carrier is directly caused to rupture, wherein especially serious with the fracture of fusing carrier two ends.
In addition; due to operating personnel; need to use sufficiently long High-Voltage Insulation bar and enough thick insulating gloves in closed fusing carrier operation; ensure safe enough; carry out, in remote operation process, the accuracy of closed procedure dynamics cannot being ensured, often there will be combined floodgate; with position limiting structure generation hard collision, directly affect the useful life of fuse switch.
Utility model content
For the problems referred to above, the utility model aims to provide the better stable reinforced outdoor drop-out fuse of a kind of performance.
For realizing this technical purpose, scheme of the present utility model is: a kind of reinforced outdoor drop-out fuse, comprise insulation column, top electrode connecting plate, bottom electrode connecting plate, fusing carrier, fuse member, described top electrode connecting plate is connected with side, insulation column upper end, described bottom electrode connecting plate is connected with side, insulation column lower end, described fusing carrier is arranged between top electrode connecting plate and bottom electrode connecting plate, described fuse member is arranged in fusing carrier, buffer structure is provided with between described fusing carrier and bottom electrode connecting plate, below described top electrode connecting plate, side is fixedly installed the upper limit plate of rigidity, described upper limit plate overcoat has flexible cushion collar,
Below described bottom electrode connecting plate, side is fixedly installed the lower limiting board of rigidity, and described lower limiting board overcoat has flexible cushion collar.
As preferably, the tube wall inner upper end inner sleeve of described fusing carrier has columniform reinforced pipe.
As preferably, the tube wall interior lower end inner sleeve of described fusing carrier has columniform reinforced pipe.
As preferably, cartridge bag paper bushing outside described fuse member fusible core, described cartridge bag paper bushing is horn taper structure.
The beneficial effects of the utility model, described top electrode connecting plate is provided with upper limit plate, and described bottom electrode connecting plate is provided with lower limiting board, can carry out spacing to fusing carrier after fusing; On lower limiting board, cover has cushion collar simultaneously, after can effectively avoiding fusing fusing carrier because of gravity rotate and jet-stream wind cut-off impact and with lower limiting board generation rigid collision and breaking, on upper limit plate, cover has cushion collar simultaneously, when can avoid carrying out distant switching-in in closed procedure, fusing carrier and upper limit plate generation hard collision; Be provided with reinforced pipe inside fusing carrier simultaneously, its mechanical strength can be increased and avoid fusing carrier upper and lower end parts burst or fracture; Outside described fuse member fusible core, cartridge bag paper bushing is horn taper structure, effectively can guide air-flow, effectively blow out electric arc rapidly, reliably cut-off fault loop.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is partial structurtes schematic diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
As Fig. 1, shown in 2, specific embodiment described in the utility model is a kind of reinforced outdoor drop-out fuse, comprise insulation column 1, top electrode connecting plate 3, bottom electrode connecting plate 6, fusing carrier 10, fuse member 7, described top electrode connecting plate 3 is connected with side, insulation column 1 upper end, described bottom electrode connecting plate 6 is connected with side, insulation column 3 lower end, described fusing carrier 10 is arranged between top electrode connecting plate 3 and bottom electrode connecting plate 6, described fuse member 7 is arranged in fusing carrier 10, buffer structure 13 is provided with between described fusing carrier 10 and bottom electrode connecting plate 6, below described top electrode connecting plate 3, side is fixedly installed the upper limit plate 11 of rigidity, described upper limit plate 11 overcoat has flexible cushion collar 2,
Below described bottom electrode connecting plate 6, side is fixedly installed the lower limiting board 8 of rigidity, and described lower limiting board 8 overcoat has flexible cushion collar 2.Be provided with latch in described cushion collar, make cushion collar and upper limit plate and lower limiting board all can stablize clamping.
In order to increase the intensity of fusing carrier, described fusing carrier 10 upper end inner sleeve has columniform reinforced pipe 9.Described fusing carrier 10 lower end inner sleeve has columniform reinforced pipe 9.Can increase its mechanical strength avoids fusing carrier explosion or end to fracture;
As shown in Figure 2, described fuse member 7 overcoat has cartridge bag paper bushing 12, and outside described fuse member fusible core, cartridge bag paper bushing is horn taper structure, effectively can guide air-flow, effectively blow out electric arc rapidly, reliably cut-off fault loop.
Specify in GB GB/T15166.3-2008, during action, flashover should not occur; After fusing carrier action, each assembly of fusing carrier except needing after each action to change, all because being in same state.
When test uses, fuse member, in order to avoid small area analysis and electric arc influence, can overlap cartridge bag paper outside fuse member, can produce gas carry out arc extinguishing by cartridge bag paper under arcing; When there is fusing, medicinal powder on the high temperature meeting cartridge bag paper produced in fusing process can decompose and produce a large amount of gas, the cartridge bag paper of trumpet-shaped cone structure effectively can dredge gas, reduces the impact inside to fusing carrier, reduces the probability that explosion occurs further.Gas can impact fusing carrier, because fusing carrier is the rigids such as pottery, has certain probability that fusing carrier upper end or lower end are burst.By adding reinforced pipe in fusing carrier, can gain in strength, reducing the probability that explosion occurs.Simultaneously because each base of Standard and fusing carrier reliably can effectively cut-off three times, the design can improve stability greatly makes it reliably effectively cut-off and meet Standard.
Meanwhile, find the double action that fusing carrier impacts at gravity and gas after tested with actual motion statistics under, fusing carrier can dip down backing collision to lower limiting board, and due to rigid collision, fusing carrier has very large probability rupture because of impact or fracture.The design can impact at the simultaneously stability meeting spacing requirement by adopting flexible cushion collar, the probability reducing fusing carrier broken end or fracture.
Concrete use procedure; operating personnel need to use sufficiently long High-Voltage Insulation bar and enough thick insulating gloves in closed procedure; carry out in remote operation process; the accuracy of closed procedure dynamics cannot be ensured; often there will be combined floodgate, with position limiting structure generation hard collision, directly affect the useful life of fuse switch; the design can impact at the simultaneously stability meeting spacing requirement by adopting flexible cushion collar, reduces fusing carrier probability of damage.
The above; be only preferred embodiment of the present utility model; not in order to limit the utility model, every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalently replace and improve, within the protection range that all should be included in technical solutions of the utility model.
Claims (4)
1. a reinforced outdoor drop-out fuse, comprise insulation column, top electrode connecting plate, bottom electrode connecting plate, fusing carrier, fuse member, described top electrode connecting plate is connected with side, insulation column upper end, described bottom electrode connecting plate is connected with side, insulation column lower end, described fusing carrier is arranged between top electrode connecting plate and bottom electrode connecting plate, described fuse member is arranged in fusing carrier, buffer structure is provided with between described fusing carrier and bottom electrode connecting plate, it is characterized in that: below described top electrode connecting plate, side is fixedly installed the upper limit plate of rigidity, described upper limit plate overcoat has flexible cushion collar,
Below described bottom electrode connecting plate, side is fixedly installed the lower limiting board of rigidity, and described lower limiting board overcoat has flexible cushion collar.
2. reinforced outdoor drop-out fuse according to claim 1, is characterized in that: the tube wall inner upper end inner sleeve of described fusing carrier has columniform reinforced pipe.
3. reinforced outdoor drop-out fuse according to claim 1, is characterized in that: the tube wall interior lower end inner sleeve of described fusing carrier has columniform reinforced pipe.
4. reinforced outdoor drop-out fuse according to claim 1, is characterized in that: cartridge bag paper bushing outside described fuse member fusible core, and described cartridge bag paper bushing is horn taper structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520850408.8U CN205092215U (en) | 2015-10-28 | 2015-10-28 | Outdoor drop out fuse of strenghthened type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520850408.8U CN205092215U (en) | 2015-10-28 | 2015-10-28 | Outdoor drop out fuse of strenghthened type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205092215U true CN205092215U (en) | 2016-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520850408.8U Active CN205092215U (en) | 2015-10-28 | 2015-10-28 | Outdoor drop out fuse of strenghthened type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205092215U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215991A (en) * | 2018-08-22 | 2019-01-15 | 江苏宝亨新电气有限公司 | A kind of fixed device of emitting underground transformer standby fusible core |
-
2015
- 2015-10-28 CN CN201520850408.8U patent/CN205092215U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215991A (en) * | 2018-08-22 | 2019-01-15 | 江苏宝亨新电气有限公司 | A kind of fixed device of emitting underground transformer standby fusible core |
| CN109215991B (en) * | 2018-08-22 | 2024-04-19 | 江苏宝亨新电气有限公司 | Backup molten core fixing device of buried transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: He Dongsheng Inventor after: Wang Shaomin Inventor after: Li Zhihong Inventor before: He Dongsheng |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160413 Address after: Ang city town Yueqing city Zhejiang province 325600 Wenzhou Xiangyang Street Industrial Zone Patentee after: JUNLANG ELECTRIC CO., LTD. Address before: 510665 Guangdong city of Guangzhou province Tianhe District Ascot garden Chun Yang Xuan 1203 C room Patentee before: He Dongsheng |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 325000 Xiangyang Street Industrial Zone, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province Patentee after: Junlang Electric Co., Ltd. Address before: 325600 Xiangyang Street Industrial Zone, Huashi Town, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: JUNLANG ELECTRIC CO., LTD. |