CN109473325A - A kind of outdoor ac high voltage drop fuse - Google Patents
A kind of outdoor ac high voltage drop fuse Download PDFInfo
- Publication number
- CN109473325A CN109473325A CN201811319177.2A CN201811319177A CN109473325A CN 109473325 A CN109473325 A CN 109473325A CN 201811319177 A CN201811319177 A CN 201811319177A CN 109473325 A CN109473325 A CN 109473325A
- Authority
- CN
- China
- Prior art keywords
- fusion tube
- fuse
- outdoor
- voltage drop
- high voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/54—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers
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- Fuses (AREA)
Abstract
The present invention relates to electric power overhaul technical fields, more particularly, to a kind of outdoor ac high voltage drop fuse.A kind of outdoor ac high voltage drop fuse, fusion tube including insulating body and for installing fuse, the upper end of insulating body is provided with upper bracket, the lower end of insulating body is provided with lower bracket, release unit is provided on upper bracket, the top of fusion tube is connect by snap-gauge with release unit, release unit includes the disengaging shell being fixed on upper bracket, it is detached from the side in shell close to fusion tube and slides up and down the pressing plate being provided with for compressing snap-gauge, compressing member is provided on pressing plate, it is detached from the side in shell far from fusion tube and is provided with wrapping wire column, the one end of bottom and lower bracket far from insulating body of fusion tube is hinged, side on lower bracket close to fusion tube is provided with positioning device.The present invention not will cause fuse broken string when replacing fuse, can prevent waste of material, can be shortened the change of fuse time, and fusion tube is also not easily to fall off when by external force.
Description
Technical field
The present invention relates to electric power overhaul technical fields, more particularly, to a kind of outdoor ac high voltage drop fuse.
Background technique
Fuse refers to when electric current is more than specified value, so that melt is fused with the heat that itself is generated, the one of disconnecting circuit
Kind electric appliance.Therefore, it is widely used in high and low voltage electric distribution system and control system and electrical equipment, as short circuit and overcurrent
Protector, be one of using most common protection device.
Wherein, high-voltage drop fuse is outdoor high-voltage protection electric appliance, is one of equipment important in distribution line, device
In distribution transformer high-pressure side or distribution wire service main road, short circuit, overload protection as transformer and route and point, close it is negative
Charged current is connected in protected circuit, when the apparatus overload in circuit or circuit or when breaking down, fuse fever and
Fusing achievees the purpose that protect circuit or equipment to cut off circuit.
Existing fuse switch is easy break fuse, roll by the way of screwing screw when replacing high voltage fuse
It is disconnected, waste of material is caused, and installation steps are cumbersome, it is longer to expend the time, in addition, master of insulating in some fuse switches
Body and the connection structure design of fusion tube bottom are unreasonable, easily loosen, in operation once encountering external force, vibration or big
Wind weather, will voluntarily malfunction and fall, may not only inadvertently fall off and injure people or object by a crashing object, and it is difficult to ensure that power supply is reliable
Rate index.
Such as Chinese patent notification number are as follows: CN2620374, in the band cutting load for having earthing switch of bulletin on June 9th, 2004
Outdoor ac high voltage drop fuse includes by insulator, upper static contact, high pressure arc-extinguish chamber, insulation fixed frame, lower support
The band cutting load outdoor ac high voltage drop fuse that frame, lower static contact and fuse tube knife are constituted, in band cutting load open air friendship
Flow high voltage drop-out type fuse cutout be equipped with earthing switch, earthing switch be by earthing, upper ground connection tool apron, lower ground connection tool apron and
Subsidy ground line composition, upper ground connection tool apron are welded on one end of insulation fixed frame, one end of lower ground connection tool apron and subsidy ground line
It is fixed on the overall screw of insulator bottom, one end of earthing is connected on lower ground connection tool apron, subsidizes the another of ground line
End is connected on earthing at closely lower ground connection tool apron, and the utility model is although easy to operate, workload is small, but replaces high-voltage fuse
It is easy break fuse, break when silk, causes waste of material, and installation steps are cumbersome, it is longer to expend the time, and this is absolutely
The connection structure design of edge and fusion tube bottom is unreasonable, easily loosens, in operation once encounter external force, vibration or
Strong wind weather, will voluntarily malfunction and fall, may not only inadvertently fall off and injure people or object by a crashing object, and it is difficult to ensure that power supply can
By rate index.
Summary of the invention
The present invention not will cause fuse broken string, can prevent material primarily directed to the above problem when providing a kind of replacement fuse
Material waste, can be shortened change of fuse time, and the outdoor AC high-voltage drop type that fusion tube is also not easily to fall off when by external force
Fuse.
The purpose of the present invention is mainly to be achieved by following proposal: a kind of outdoor AC high-voltage drop type fusing
Device, the fusion tube including insulating body and for installing fuse, the upper end of the insulating body are provided with upper bracket, and described is exhausted
The lower end of edge main body is provided with lower bracket, and release unit is provided on the upper bracket, passes through card at the top of the fusion tube
Plate is connect with release unit, and the release unit includes the disengaging shell being fixed on upper bracket, in the disengaging shell
Side close to fusion tube slides up and down the pressing plate being provided with for compressing snap-gauge, and compressing member is provided on the pressing plate, described
Disengaging shell in the side far from fusion tube be provided with wrapping wire column, the fuse is wrapped on wrapping wire column and by compressing member pressure
Tightly, the one end of the bottom of the fusion tube and lower bracket far from insulating body is hinged, close to the one of fusion tube on the lower bracket
Side is provided with positioning device, and the positioning device includes positioning housing and rotating bar, and the positioning housing is close to fusion tube
Side is provided with sliding slot, slides up and down in the sliding slot and is connected with sliding block, and one end of the rotating bar and sliding block are hinged, institute
The other end for the rotating bar stated is hinged on fusion tube.The upper end of insulating body is provided with upper bracket, the lower end setting of insulating body
There is lower bracket, release unit is provided on upper bracket, the top of fusion tube is connect by snap-gauge with release unit, and release unit is set
Meter can be convenient for the installation and replacement of fuse, and circuit can be cut off when fuse is blown, and release unit includes being fixed on
Disengaging shell on bracket is detached from the side in shell close to fusion tube and slides up and down the pressing plate being provided with for compressing snap-gauge, presses
It is provided with compressing member on plate, is detached from the side in shell far from fusion tube and is provided with wrapping wire column, fuse is wrapped on wrapping wire column and will
Compressing member compresses, and when specific installation and replacement fuse, first by the snap-gauge insertion pressing plate at the top of fusion tube and is detached between shell inner bottom surface,
Then fuse is crossed into compressing member upper surface and is wrapped on wrapping wire column, while fuse is compressed compressing member, compressing member by
To fuse pressure to pressing plate function pressure, pressing plate is compressed snap-gauge, realize at the top of fusion tube with release unit it
Between connection, the one end of bottom and lower bracket far from insulating body of fusion tube is hinged, allow fusion tube around this hinged place rotate
And lower bracket cannot be detached from, the side on lower bracket close to fusion tube is provided with positioning device, positioning device include positioning housing and
Rotating bar, positioning housing are provided with sliding slot close to the side of fusion tube, slide up and down in sliding slot and be connected with sliding block, one end of rotating bar
Hinged with sliding block, the other end of rotating bar is hinged on fusion tube, and after fuse is blown, fuse does not generate pressure to compressing member,
So that pressing plate can not clamp snap-gauge, then snap-gauge is detached from pressing plate, so that fusion tube upper end, far from release unit, fusion tube lower end is hinged on
On lower bracket, fusion tube upper end is rotated toward far from insulating body direction, to drive rotating bar mobile, rotating bar band movable slider is in cunning
Upward sliding in slot, the design of positioning device can limit revolving speed of the fusion tube in rotation, prevent fusion tube rotation too fast and are detached from
Lower bracket.
Preferably, the sliding block is provided with card slot on the side of sliding slot bottom surface, the top of the sliding slot is set
It is equipped with the clamping slot being located in positioning housing, sliding is provided with card column in the clamping slot, the card column and clamping slot
It is connected between bottom surface by garter spring.Sliding block is provided with card slot on the side of sliding slot bottom surface, and the top of sliding slot is provided with
Clamping slot in positioning housing, the interior sliding of clamping slot are provided with the card column matched with card slot, the bottom of card column and clamping slot
It is connected between face by garter spring, for garter spring when not by external force, garter spring makes card column separate card column active force
One end of garter spring is located in sliding slot, and when rotating bar band movable slider is mobile to clamping slot direction, the side of sliding block is against card
On column, to overcome the spring force of garter spring to make card column mobile toward garter spring direction, when sliding block continues to move to so that blocking
When slot corresponds to card column, card column moves into card slot under the action of garter spring and carries out clamping operation to sliding block, so that sliding
The position of block is fixed, so that the position of fusion tube is also fixed, prevents the excessive disengaging lower bracket of fusion tube rotational angle.
Preferably, the compressing member is to compress air bag.Compressing member is to compress air bag, compresses air bag in the effect of fuse
Under be extruded on pressing plate, compress air bag can play certain damping effect, high stability when snap-gauge is clamped, and cost
It is lower.
Preferably, being provided with the line pressing portion for compressing for fuse on the compressing member.It is arranged on compressing member useful
In the line pressing portion compressed for fuse, line pressing portion recess is arranged on compressing member top surface, and fuse can be prevented to be detached from compressing member.
Preferably, pressing plate is corresponded on the two sidewalls of the disengaging shell is provided with pressing groove, the two of the pressing plate
End is slidably arranged in pressing groove.Pressing plate is corresponded on the two sidewalls of disengaging shell and is provided with pressing groove, and the both ends sliding of pressing plate is set
It sets in pressing groove, pressing plate slides up and down in disengaging shell along pressing groove, and stability is good, not easily to fall off.
Preferably, being provided with the guiding surface matched with card column on the sliding block.It is provided on sliding block and card column
The guiding surface matched can quickly overcome spring force will when the setting of guiding surface is so that sliding block movement is against in card column
Card column heads into clamping slot, improves the stability of sliding block when moving.
Therefore, a kind of outdoor ac high voltage drop fuse of the invention has following advantages: the configuration of the present invention is simple,
Not will cause fuse broken string when replacing fuse, waste of material can be prevented, can be shortened the change of fuse time, and fusion tube by
It is also not easily to fall off when external force, it is highly-safe.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of the present invention at runtime.
Attached drawing 2 is structural schematic diagram of the present invention when fuse is blown.
Attached drawing 3 is the cross-sectional view of release unit in the present invention.
Attached drawing 4 is the cross-sectional view in attached drawing 3 at A-A.
Attached drawing 5 is the cross-sectional view of the positioning device of the present invention at runtime.
Attached drawing 6 is the cross-sectional view of positioning device of the present invention when fuse is blown.
Attached drawing 7 is the right view of positioning device in the present invention.
It illustrates: 1- insulating body, 2- upper bracket, 3- release unit, 4- fuse, 5- fusion tube, 6- rotating bar, 7- positioning
Device, 8- lower bracket, 9- snap-gauge, 10- are detached from shell, 11- wrapping wire column, 12- pressing plate, 13- guiding surface, 14- compressing member, 15-
Sliding block, 16- line pressing portion, 17- pressing groove, 18- garter spring, 19- clamping slot, 20- positioning housing, 21- card slot, 22- card column,
23- sliding slot.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment 1:
As shown in Fig. 1,2,3,4,5,7, a kind of outdoor ac high voltage drop fuse, including insulating body 1 and for installing
The fusion tube 5 of fuse 4, the upper end of insulating body 1 are provided with upper bracket 2, and the lower end of insulating body 1 is provided with lower bracket 8, upper bracket
Release unit 3 is provided on 2, the top of fusion tube 5 is connect by snap-gauge 9 with release unit 3, and the design of release unit 3 can be just
In the installation and replacement of fuse 4, and circuit can be cut off when fuse 4 is blown, release unit 3 includes being fixed on upper bracket 2
On disengaging shell 10, be detached from shell 10 and slide up and down the pressing plate being provided with for compressing snap-gauge 9 close to the side of fusion tube 5
12, it is provided with compressing member 14 on pressing plate 12, is detached from the side in shell 10 far from fusion tube 5 and is provided with wrapping wire column 11, fuse 4 is wound
It is compressed on wrapping wire column 11 and by compressing member 14, when specific installation and replacement fuse 4, the snap-gauge 9 at 5 top of fusion tube is first inserted into pressing plate
Between 12 and disengaging 10 inner bottom surface of shell, fuse 4 is then crossed into 14 upper surface of compressing member and is wrapped on wrapping wire column 11, simultaneously
So that fuse 4 compresses compressing member 14, compressing member 14 by fuse 4 pressure to 12 actuating pressure of pressing plate so that pressing plate
12 can compress snap-gauge 9, realize the connection between 5 top of fusion tube and release unit 3, the bottom of fusion tube 5 and lower bracket 8 are far from absolutely
One end of edge main body 1 is hinged, and fusion tube 5 is allowed to rotate around this hinged place and cannot be detached from lower bracket 8, close on lower bracket 8
The side of fusion tube 5 is provided with positioning device 7, and positioning device 7 includes positioning housing 20 and rotating bar 6, and positioning housing 20 is close to molten
The side of pipe 5 is provided with sliding slot 23, slides up and down in sliding slot 23 and is connected with sliding block 15, and one end of rotating bar 6 and sliding block 15 are hinged,
The other end of rotating bar 6 is hinged on fusion tube 5, after fuse is blown, fuse not to compressing member generate pressure so that pressing plate without
Method clamps snap-gauge, and then snap-gauge is detached from pressing plate, so that fusion tube upper end, far from release unit, fusion tube lower end is hinged on lower bracket,
Fusion tube upper end is past to be rotated far from insulating body direction, to drive rotating bar mobile, rotating bar band movable slider is upward in sliding slot
Sliding, the design of positioning device can limit revolving speed of the fusion tube in rotation, prevent fusion tube rotation too fast and are detached from lower bracket 8；
Compressing member 14 is to compress air bag, compresses air bag and is extruded on pressing plate 12 under the action of fuse 4, and compression air bag can play certain
Damping effect, high stability when snap-gauge 9 is clamped, and also cost is relatively low, is provided on compressing member 14 for pressing for fuse 4
Tight line pressing portion 16, the recess of line pressing portion 16 are arranged on 14 top surface of compressing member, and fuse 4 can be prevented to be detached from compressing member 14.
Pressing plate 12 is corresponded on the two sidewalls of disengaging shell 10 and is provided with pressing groove 17, and the both ends of pressing plate 12 are slidably arranged in pressure
In tight slot 17, pressing plate 12 slides up and down in disengaging shell 10 along pressing groove 17, and stability is good, not easily to fall off.
As shown in fig. 6, sliding block 15 is provided with card slot 21 on the side of 23 bottom surface of sliding slot, the top of sliding slot 23 is provided with
Clamping slot 19 in positioning housing 20, the interior sliding of clamping slot 19 are provided with the card column 22 matched with card slot 21, card column 22
It is connect between the bottom surface of clamping slot 19 by garter spring 18, garter spring 18 is not when by external force, 18 pairs of garter spring cards
22 active force of column is located at card column 22 in sliding slot 23 far from one end of garter spring 18, when rotating bar 6 with movable slider 15 to card
When tight 19 direction of slot movement, the side of sliding block 15 is against in card column 22, so that the spring force of garter spring 18 be overcome to make card column
22 is mobile toward 18 direction of garter spring, and when sliding block 15 continues to move to so that card slot 21 corresponds to card column 22, card column 22 is in clamping bullet
It is moved under the action of spring 18 in card slot 21 and clamping operation is carried out to sliding block 15, so that the position of sliding block 15 is fixed, from
And the position of fusion tube 5 is also fixed, prevent the excessive disengaging lower bracket 8 of 5 rotational angle of fusion tube.
The guiding surface 13 matched with card column 22 is provided on sliding block 15, the setting of guiding surface 13 is so that sliding block 15 moves
It is dynamic when being against in card column 22, it can quickly overcome spring force to head into card column 22 in clamping slot 19, improve sliding block 15 when moving
Stability.
It should be understood that being somebody's turn to do, examples are only for illustrating the present invention and not for limiting the scope of the present invention.In addition, it should also be understood that,
After having read the content of the invention lectured, those skilled in the art can make various modifications or changes to the present invention, these etc.
Valence form is also fallen within the scope of the appended claims of the present application.
Claims (6)
1. a kind of outdoor ac high voltage drop fuse, which is characterized in that including insulating body and for installing the molten of fuse
Pipe, the upper end of the insulating body are provided with upper bracket, and the lower end of the insulating body is provided with lower bracket, and described is upper
Release unit is provided on bracket, the top of the fusion tube is connect by snap-gauge with release unit, the release unit packet
The disengaging shell being fixed on upper bracket is included, slides up and down and is provided with for pressing close to the side of fusion tube in the disengaging shell
The pressing plate of tight snap-gauge is provided with compressing member on the pressing plate, in the disengagings shell side of separate fusion tube be provided with around
Silk column, the fuse are wrapped on wrapping wire column and compress compressing member, and the bottom of the fusion tube and lower bracket are far from insulation
One end of main body is hinged, and the side on the lower bracket close to fusion tube is provided with positioning device, and the positioning device includes
Positioning housing and rotating bar, the positioning housing are provided with sliding slot close to the side of fusion tube, slide up and down in the sliding slot
It is connected with sliding block, one end of the rotating bar and sliding block are hinged, and the other end of the rotating bar is hinged on fusion tube.
2. a kind of outdoor ac high voltage drop fuse according to claim 1, which is characterized in that the sliding block leans on
It is provided with card slot on the side of nearly sliding slot bottom surface, the top of the sliding slot is provided with the clamping slot in positioning housing, institute
Sliding is provided with card column in the clamping slot stated, and is connected between the card column and the bottom surface of clamping slot by garter spring.
3. a kind of outdoor ac high voltage drop fuse according to claim 1, which is characterized in that the compressing member
To compress air bag.
4. a kind of outdoor ac high voltage drop fuse according to claim 3, which is characterized in that the compressing member
On be provided with line pressing portion for compressing for fuse.
5. a kind of outdoor ac high voltage drop fuse according to claim 1 or 2 or 3, which is characterized in that described
Pressing plate is corresponded on the two sidewalls of disengaging shell and is provided with pressing groove, and the both ends of the pressing plate are slidably arranged in pressing groove.
6. a kind of outdoor ac high voltage drop fuse according to claim 1 or 2 or 3, which is characterized in that described
The guiding surface matched with card column is provided on sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811319177.2A CN109473325B (en) | 2018-11-07 | 2018-11-07 | Outdoor AC high-voltage drop-out fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811319177.2A CN109473325B (en) | 2018-11-07 | 2018-11-07 | Outdoor AC high-voltage drop-out fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109473325A true CN109473325A (en) | 2019-03-15 |
| CN109473325B CN109473325B (en) | 2020-06-19 |
Family
ID=65666856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811319177.2A Active CN109473325B (en) | 2018-11-07 | 2018-11-07 | Outdoor AC high-voltage drop-out fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109473325B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110491749A (en) * | 2019-09-24 | 2019-11-22 | 西安中熔电气股份有限公司 | A kind of external drive type quick opening and closing mechanism |
| CN111211026A (en) * | 2019-12-12 | 2020-05-29 | 国网浙江省电力有限公司磐安县供电公司 | Outdoor interchange high voltage drop out fuse of portable |
| CN112687499A (en) * | 2020-12-15 | 2021-04-20 | 贵州电网有限责任公司 | Fuse tube for drop-out fuse |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201717220U (en) * | 2010-05-13 | 2011-01-19 | 任雪松 | Novel dropout fuse |
| WO2012012442A1 (en) * | 2010-07-20 | 2012-01-26 | Cooper Technologies Company | Fuse link auxiliary tube improvement |
| CN106356267A (en) * | 2016-11-15 | 2017-01-25 | 国家电网公司 | Falling type fuse |
-
2018
- 2018-11-07 CN CN201811319177.2A patent/CN109473325B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201717220U (en) * | 2010-05-13 | 2011-01-19 | 任雪松 | Novel dropout fuse |
| WO2012012442A1 (en) * | 2010-07-20 | 2012-01-26 | Cooper Technologies Company | Fuse link auxiliary tube improvement |
| CN106356267A (en) * | 2016-11-15 | 2017-01-25 | 国家电网公司 | Falling type fuse |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110491749A (en) * | 2019-09-24 | 2019-11-22 | 西安中熔电气股份有限公司 | A kind of external drive type quick opening and closing mechanism |
| CN111211026A (en) * | 2019-12-12 | 2020-05-29 | 国网浙江省电力有限公司磐安县供电公司 | Outdoor interchange high voltage drop out fuse of portable |
| CN112687499A (en) * | 2020-12-15 | 2021-04-20 | 贵州电网有限责任公司 | Fuse tube for drop-out fuse |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109473325B (en) | 2020-06-19 |
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