CN202712106U - Outdoor alternating-current high-voltage drop-out fuse - Google Patents
Outdoor alternating-current high-voltage drop-out fuse Download PDFInfo
- Publication number
- CN202712106U CN202712106U CN 201220381786 CN201220381786U CN202712106U CN 202712106 U CN202712106 U CN 202712106U CN 201220381786 CN201220381786 CN 201220381786 CN 201220381786 U CN201220381786 U CN 201220381786U CN 202712106 U CN202712106 U CN 202712106U
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- Prior art keywords
- fusion tube
- voltage drop
- accelerator
- outdoor
- hook
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Abstract
The utility model relates to an outdoor alternating-current high-voltage drop-out fuse. The drop-out fuse comprises a porcelain insulator (23), a middle installed steel foot (24), a lower movable contact seat (17), a fusion tube component, an upper support plate (4), an anti-ice cover (6), a hook (10), a lower support plate (18) and a lower bracket (16), wherein the upper support plate (4) is installed on an upper installed steel foot (1); the lower support plate (18) and the lower bracket (16) are installed on a lower installed steel foot (22); an accelerating device (5) is arranged on the side face of the hook (10); one end of the accelerating device (5) contacts with a fusion tube upper ring (11) of the fusion tube component; the accelerating device (5) is a spring or a U-shaped elastic sheet; one end of the accelerating device is fixedly installed on the hook (10) through a bayonet lock. The drop-out fuse can speed up the drop of the fusion tube component, so that the problem about electric arcs resulting from the low drop speed of a fusion tube can be prevented.
Description
Technical field
The utility model relates to a kind of fuse switch, has related in particular to a kind of outdoor ac high voltage drop fuse that can accelerate the accelerator that the fusion tube assembly falls of having set up.
Background technology
The outdoor drop-out fuse that uses at present is used for the overhead distribution system, and the visible indication of overcurrent protection, fault-current protection and fuse member action is provided.Because it has intuitively visible fracture, and when cut-offfing instrument with load and use, can play the effect of on-load switch and can cut-off load current, create safe operational environment for maintenance circuit and plant maintenance, be used widely.
But in electric line, the high voltage drop-out type fuse cutout that generally uses at present, the drop speed of its fusion tube mainly is the opposition of active force and the interior gas of fusion tube of on the lower turnover panel, but the drop speed of fusion tube is limited.Fuse member fusing when breaking down electric current causes the fusion tube drop, and fusion tube drop speed is unhappy just easily to cause electric arc, and the time, more long arc was longer.The burning of electric arc impacts simultaneously damage equipment to system.Given this design feature just must allow the drop speed of fusion tube accelerate, and how design the main R﹠D direction that the outdoor ac high voltage drop fuse that possesses the device that can accelerate the fusion tube drop has also become present manufacturer for avoiding the arcing time long.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, provide a kind of rational in infrastructure, set up an outdoor ac high voltage drop fuse accelerator, that make fusion tube accelerate to drop.
To achieve these goals, the utility model has adopted following technical scheme: a kind of outdoor ac high voltage drop fuse, comprise porcelain insulator, middle steel pin, fusion tube assembly, lower moving contact seat be installed, be installed in upper backup pad, de-icer boot, the hook on the installation steel pin and be installed in lower supporting plate and lower carriage on the lower installation steel pin, side at hook is provided with an accelerator, and an end of accelerator contacts with the fusion tube pressed on ring of fusion tube assembly.
Above-mentioned accelerator is a spring or U-shaped shell fragment, and its a end is fixedly mounted on the hook by bayonet lock.
The contacted side of above-mentioned spring and fusion tube pressed on ring is riveted a stainless steel part.Stainless steel part can well contact to transmit power to spring with the fusion tube pressed on ring.
Above-mentioned bayonet lock can only extrude toward the opposite side that spring is housed under the effect of external force, puts in place along with the fusion tube assembly closes a floodgate, and spring also is compressed to balance point.When the balance of accelerator and fusion tube assembly is broken, accelerator instant-free energy makes the fusion tube group accelerate to fall.
The fusion tube assembly comprises fusion tube, is installed in ring, fuse, lower turnover panel and pressure releasing cap etc. under the fusion tube pressed on ring, fusion tube at fusion tube two ends in the utility model; Pressure releasing cap is installed in the upper end of fusion tube, and presses tactile the connection with the groove of static contact; Ring is connected with lower carriage by lower moving contact seat under the fusion tube.
Be respectively equipped with left tension disc, terminal block and right tension disc on above-mentioned upper backup pad and the lower supporting plate, be used for crimping lead wire.
Be provided with a spring between above-mentioned static contact and the de-icer boot, make static contact and pressure releasing cap can form effective pressure and touch and to be connected.
The utility model comprises porcelain insulator, fusion tube assembly and the parts such as steel pin is installed up and down, and wherein creationary hook in the fusion tube upper side is installed an accelerator, and accelerator contacts with the fusion tube pressed on ring; When fusion tube closed a floodgate, the fusion tube pressed on ring increased potential energy to accelerator, and when fusion tube was in closing position, fusion tube and accelerator were in poised state; Fuse member fusing when fault current passes through, the poised state of fusion tube is broken, and the potential energy of accelerator discharges, the opposition of gas in the active force of turnover panel and the fusion tube about adding, the fusion tube assembly is fallen fast, falls speed and is largely increased.
The patented technology in first to file based on the applicant, outdoor ac high voltage drop fuse can also increase some designs, as be provided with the convex surface contact in the hemispherical groove of the static contact that contacts with the pressure releasing cap of fusion tube upper end, the quantity of convex surface contact is more than three; At lower carriage L-type shell fragment and lower conducting strip are installed, under the pressure of L-type shell fragment, make lower conducting strip press to touch with the lower moving contact seat of fusion tube and be connected etc.
Compared with prior art, the beneficial effect that the utlity model has:
1. newly establish accelerator, can accelerate the drop speed of fusion tube assembly, can be good at avoiding fusion tube to fall the problem that speed causes electric arc slowly.
2. increased the stability that the fusion tube assembly closes a floodgate.Fusion tube and accelerator are in contact with one another and form a kind of poised state, and the stability of its combined floodgate is promoted.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment fuse switch.
Fig. 2 is the partial enlarged view of accelerator installation place among fuse switch one embodiment.
Fig. 3 is the structural representation of another embodiment fuse switch of the utility model.
Fig. 4 is the partial enlarged view of accelerator installation place among another embodiment of fuse switch.
Reference numeral: on steel pin 1 is installed, left tension disc 2, right tension disc 3, upper backup pad 4, accelerator 5, de-icer boot 6, spring 7, static contact 8, pressure releasing cap 9, hook 10, fusion tube pressed on ring 11, fusion tube 12, encircle 13 under the fusion tube, fuse 14, lower turnover panel 15, lower carriage 16, lower moving contact seat 17, lower supporting plate 18, lower terminal block 19, right tension disc 20, left tension disc 21, lower installation steel pin 22, porcelain insulator 23, the middle steel pin 24 of installing.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Embodiment 1:
Shown in accompanying drawing 1,2, outdoor ac high voltage drop fuse of the present utility model, comprise porcelain insulator 23, lower carriage 16, de-icer boot 6, fusion tube assembly and accelerator 5 etc., the fusion tube assembly comprises fusion tube 12, be installed in encircle 13 under the fusion tube pressed on ring 11 at fusion tube 12 two ends, the fusion tube, fuse 14, lower turnover panel 15 and pressure releasing cap 9 etc.; Its primary structure is: three positions of upper, middle and lower at porcelain insulator 23 are provided with 3 steel pin, and the middle steel pin 24 of installing is used for outdoor ac high voltage drop fuse is installed in the target location; 22 on lower installation steel pin is used for fixed installation lower supporting plate 18 and lower carriage 16, and lower supporting plate 18 is provided with lower terminal block 19, right tension disc 20 and left tension disc 21, and ring 13 is connected with lower carriage 16 by lower moving contact seat 17 under the fusion tube of fusion tube assembly; Upper installation steel pin 1 is used for fixed installation upper backup pad 4, de-icer boot 6, static contact 8 and links up with 10, upper backup pad 4 is provided with left tension disc 2, right tension disc 3 and terminal block, be provided with a spring 7 between de-icer boot 6 and the static contact 8, can make static contact 8 and pressure releasing cap 9 form effectively to press to touch and be connected; Wherein accelerator 5 is a spring, and its a end is fixedly mounted on the hook 10 by bayonet lock, and the other end is riveted a stainless steel part, then contacts with fusion tube pressed on ring 11.In this outdoor ac high voltage drop fuse, when fusion tube 12 closed a floodgate, fusion tube pressed on ring 11 increased potential energy for accelerator 5, and when fusion tube 12 was in closing position, fusion tube 12 was in poised state with accelerator 5; Fuse 14 fusing when fault current passes through, the poised state of fusion tube 12 is broken, the potential energy of accelerator 5 discharges, the active force of turnover panel 15 and the opposition of fusion tube 12 interior gases about adding, the fusion tube assembly is fallen fast, fall speed and be largely increased, can be good at avoiding fusion tube to fall the problem that speed causes electric arc slowly.
Embodiment 2:
Shown in accompanying drawing 3,4, outdoor ac high voltage drop fuse of the present utility model, comprise porcelain insulator 23, lower carriage 16, de-icer boot 6, fusion tube assembly and accelerator 5 etc., the fusion tube assembly comprises fusion tube 12, be installed in encircle 13 under the fusion tube pressed on ring 11 at fusion tube 12 two ends, the fusion tube, fuse 14, lower turnover panel 15 and pressure releasing cap 9 etc.; Its primary structure is: three positions of upper, middle and lower at porcelain insulator 23 are provided with 3 steel pin, and the middle steel pin 24 of installing is used for outdoor ac high voltage drop fuse is installed in the target location; 22 on lower installation steel pin is used for fixed installation lower supporting plate 18 and lower carriage 16, and lower supporting plate 18 is provided with lower terminal block 19, right tension disc 20 and left tension disc 21, and ring 13 is connected with lower carriage 16 by lower moving contact seat 17 under the fusion tube of fusion tube assembly; Upper installation steel pin 1 is used for fixed installation upper backup pad 4, de-icer boot 6, static contact 8 and links up with 10, upper backup pad 4 is provided with left tension disc 2, right tension disc 3 and terminal block, be provided with a spring 7 between de-icer boot 6 and the static contact 8, can make static contact 8 and pressure releasing cap 9 form effectively to press to touch and be connected; Wherein accelerator 5 is a U-shaped shell fragment, and its a end is fixedly mounted on the hook 10 by bayonet lock, and the other end contacts with fusion tube pressed on ring 11.In this outdoor ac high voltage drop fuse, when fusion tube 12 closed a floodgate, fusion tube pressed on ring 11 increased potential energy for accelerator 5, and when fusion tube 12 was in closing position, fusion tube 12 was in poised state with accelerator 5; Fuse 14 fusing when fault current passes through, the poised state of fusion tube 12 is broken, the potential energy of accelerator 5 discharges, the active force of turnover panel 15 and the opposition of fusion tube 12 interior gases about adding, the fusion tube assembly is fallen fast, fall speed and be largely increased, can be good at avoiding fusion tube to fall the problem that speed causes electric arc slowly.
Claims (4)
1. outdoor ac high voltage drop fuse, comprise porcelain insulator (23), middle steel pin (24), lower moving contact seat (17), fusion tube assembly be installed, be installed in upper backup pad (4), de-icer boot (6), the hook (10) on the installation steel pin (1) and be installed in lower supporting plate (18) and lower carriage (16) on the lower installation steel pin (22), it is characterized in that: the side at hook (10) is provided with an accelerator (5), and an end of accelerator (5) contacts with the fusion tube pressed on ring (11) of fusion tube assembly.
2. outdoor ac high voltage drop fuse according to claim 1, it is characterized in that: described accelerator (5) is a spring or U-shaped shell fragment, and its a end is fixedly mounted on the hook (10) by bayonet lock.
3. outdoor ac high voltage drop fuse according to claim 2, it is characterized in that: described spring and the contacted side of fusion tube pressed on ring (11) are riveted a stainless steel part.
4. according to claim 2 or 3 arbitrary described outdoor ac high voltage drop fuses, it is characterized in that: described bayonet lock can only extrude toward the opposite side that spring is housed under the effect of external force, put in place along with the fusion tube assembly closes a floodgate, spring also is compressed to balance point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381786 CN202712106U (en) | 2012-08-03 | 2012-08-03 | Outdoor alternating-current high-voltage drop-out fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381786 CN202712106U (en) | 2012-08-03 | 2012-08-03 | Outdoor alternating-current high-voltage drop-out fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202712106U true CN202712106U (en) | 2013-01-30 |
Family
ID=47592383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220381786 Withdrawn - After Issue CN202712106U (en) | 2012-08-03 | 2012-08-03 | Outdoor alternating-current high-voltage drop-out fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202712106U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789933A (en) * | 2012-08-03 | 2012-11-21 | 广西和谐电力科技有限公司 | Outdoor alternating-current high-voltage drop-out fuse |
| CN104576258A (en) * | 2014-12-30 | 2015-04-29 | 国家电网公司 | Self-energy-storage high-voltage drop blowout switch |
| CN106783452A (en) * | 2016-12-30 | 2017-05-31 | 天津智联恒信电力设备股份有限公司 | Intelligent fuse switch equipment |
-
2012
- 2012-08-03 CN CN 201220381786 patent/CN202712106U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789933A (en) * | 2012-08-03 | 2012-11-21 | 广西和谐电力科技有限公司 | Outdoor alternating-current high-voltage drop-out fuse |
| CN102789933B (en) * | 2012-08-03 | 2015-09-02 | 广西和谐电力科技有限公司 | Outdoor ac high voltage drop fuse |
| CN104576258A (en) * | 2014-12-30 | 2015-04-29 | 国家电网公司 | Self-energy-storage high-voltage drop blowout switch |
| CN106783452A (en) * | 2016-12-30 | 2017-05-31 | 天津智联恒信电力设备股份有限公司 | Intelligent fuse switch equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130130 Effective date of abandoning: 20150902 |
|
| RGAV | Abandon patent right to avoid regrant |