CN106449331A - Full-insulation closed-type load fuse - Google Patents
Full-insulation closed-type load fuse Download PDFInfo
- Publication number
- CN106449331A CN106449331A CN201610780131.5A CN201610780131A CN106449331A CN 106449331 A CN106449331 A CN 106449331A CN 201610780131 A CN201610780131 A CN 201610780131A CN 106449331 A CN106449331 A CN 106449331A
- Authority
- CN
- China
- Prior art keywords
- fuse
- static contact
- arc
- insulation
- porcelain vase
- 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.)
- Pending
Links
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
- H01H85/02—Details
- H01H85/38—Means for extinguishing or suppressing arc
- H01H85/42—Means for extinguishing or suppressing arc using an arc-extinguishing gas
-
- 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
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/143—Electrical contacts; Fastening fusible members to such contacts
Abstract
The invention provides a full-insulation closed-type load fuse, and the fuse comprises an upper end insulating incoming wire and an external porcelain insulator. The upper end insulating incoming wire is disposed at the upper end of the external porcelain insulator. The interior of the external porcelain insulator is provided with an arc extinguishing rod, and the exterior of the external porcelain insulator is provided with a clamping ring. The clamping ring is provided with a bolt. The lower end of the interior of the external porcelain insulator is provided with a static contact end cover, and the static contact end cover is provided with a fuse tube. The lower end of the fuse tube is provided with a lower moving contact, and the bottom of the external porcelain insulator is provided with a rubber pedestal. The lower part of the fuse tube is provided with a compression spring, and a buffering spring is disposed above the compression spring. The interior of the static contact end cover is provided with a static contact part. The interior of the fuse tube is provided with a fuse, and the top of the fuse is provided with an arc shrinking rod, and the upper part of the arc shrinking rod is provided with an upper moving contact, wherein the exterior of the upper moving contact is provided with an arc extinguishing tube. The fuse reduces the arc performances, and guarantees the reliability of a product. The fuse reduces the loop resistance and temperature rise, improves the through-flow performance of the product body, optimizes the structure of the fuse tube, and greatly improves the current-carrying and breakage capabilities of the product.
Description
Technical field
The present invention relates to fuse field, particularly relate to a kind of all insulation enclosed load fuse.
Background technology
At present in fuse field, often use insulation fuse, and common insulation fuse operationally due to
Poor fit between expulsion tube and arc-extinguishing stick, the arc producing when short circuit disconnects can be relatively big, easily causes fuse and damages, shadow
Ring the service life of fuse, and fuse operationally can produce temperature, causes the temperature of fuse itself to rise, reduce
The service life of fuse, and fusion tube is as one of short-circuit vitals disconnecting of fuse, if fusion tube quality is bad, holds
Easily causing fuse cannot work, security performance declines.Therefore, solve the problems referred to above to be just particularly important.
Content of the invention
It is an object of the invention to provide a kind of all insulation enclosed load fuse, by the extinguishing arc at porcelain vase top for the device
Pipe and coordinating between the arc-extinguishing stick at fusion tube top, provide the ability that fuse load cut-offs, drop when short circuit interruption simultaneously
Low arc energy, it is ensured that the reliability of product, and by optimizing upper dynamic/static contact structure, reduce loop resistance and temperature rise, promote and produce
The through-flow performance of product itself, improves the reliability that dynamic/static contact coordinates simultaneously；Use the extinguishing arc material of the big gas production of macromolecule
Material, the current-carrying of the structure of optimization fusion tube, greatly improving product and breaking capacity.
The present invention provides a kind of all insulation enclosed load fuse, including upper end insulating inlet wire and external insulation porcelain vase, institute
Stating upper end insulating inlet wire and being arranged on external insulation porcelain vase upper end, described external insulation porcelain vase is internally provided with arc-extinguishing stick, described external insulation
Being provided with snap ring outside porcelain vase, described snap ring being provided with bolt, described external insulation porcelain vase interior lower end is provided with stationary contact
Lid, described stationary contact lid is provided with fusion tube, and described fusion tube lower end is provided with bottom moving contact, bottom described external insulation porcelain vase
Being provided with rubber base plate, described fusion tube bottom is provided with compression spring, and described compression spring is provided above buffer spring, described
Being provided with static contact parts in static contact end cap, described fusion tube is internally provided with fuse, and described fuse top is provided with contracting arc rod,
Described contracting arc rod top is provided with top moving contact, is provided with expulsion tube outside the moving contact of described top.
Further improvement is that：Described arc-extinguishing stick upper end is provided with compression spring, and described upper compression spring is provided with
Top static contact.
Further improvement is that：It is provided with lower end insulation outlet on described rubber base plate.
Further improvement is that：Described fusion tube top is provided with fusion tube connector.
Further improvement is that：It is provided with action marker on described stationary contact lid.
Further improvement is that：It is provided with buffering spacer on the static contact of described top.
The invention has the beneficial effects as follows：By between the expulsion tube at porcelain vase top for the device and the arc-extinguishing stick at fusion tube top
Coordinate, provide the ability that fuse load cut-offs, reduce arc energy when short circuit interruption, it is ensured that the reliability of product simultaneously；Logical
Cross optimization upper dynamic/static contact structure, reduce loop resistance and temperature rise, the through-flow performance of improving product itself, improve simultaneously dynamic/
The reliability that static contact coordinates；Use the arc suppression of the big gas production of macromolecule, optimize the structure of fusion tube, greatly improving product
Current-carrying and breaking capacity.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the external structure of the present invention.
Wherein：1-upper end insulating inlet wire, 2-external insulation porcelain vase, 3-arc-extinguishing stick, 4-snap ring, 5-bolt, 6-static contact end cap,
7-fusion tube, 8-bottom moving contact, 9-rubber base plate, 10-compression spring, 11-buffer spring, 12-static contact parts, 13-fuse,
14-contracting arc rod, 15-top moving contact, 16-expulsion tube, the upper compression spring of 17-, 18-top static contact, 19-insulate in lower end
Line, 20-fusion tube connector, 21-action marker, 22-buffering spacer.
Detailed description of the invention
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be further described, this embodiment
It is only used for explaining the present invention, be not intended that limiting the scope of the present invention.
As shown in Figure 1, 2, a kind of all insulation enclosed load fuse is present embodiments provided, including upper end insulating inlet wire
1 and external insulation porcelain vase 2, described upper end insulating inlet wire 1 is arranged on external insulation porcelain vase 2 upper end, and described external insulation porcelain vase 2 is internal to be arranged
Having arc-extinguishing stick 3, described external insulation porcelain vase 2 is outside is provided with snap ring 4, and described snap ring 4 is provided with bolt 5, described external insulation porcelain
Bottle 2 interior lower end are provided with static contact end cap 6, and described static contact end cap 6 is provided with fusion tube 7, and described fusion tube 7 lower end is provided with
Bottom moving contact 8, is provided with rubber base plate 9 bottom described external insulation porcelain vase 2, described fusion tube 7 bottom is provided with compression spring 10,
Described compression spring 10 is provided above buffer spring 11, is provided with static contact parts 12 in described static contact end cap 6, described molten
Pipe 7 is internally provided with fuse 13, and described fuse 13 top is provided with contracting arc rod 14, and described contracting arc rod 14 tops are provided with top and move
Contact 15, described top moving contact 15 is outside is provided with expulsion tube 16.Described arc-extinguishing stick 3 upper end is provided with compression spring 17,
It is provided with top static contact 18 in described upper compression spring 17.It is provided with lower end insulation outlet 19 on described rubber base plate 9.Described
Fusion tube 7 top is provided with fusion tube connector 20.It is provided with action marker 21 on described static contact end cap 6.Described top static contact
It is provided with buffering spacer 22 on 18.By joining between the expulsion tube 16 at porcelain vase top for the device and the arc-extinguishing stick 3 at fusion tube 7 top
Close, provide the ability that fuse load cut-offs, reduce arc energy when short circuit interruption, it is ensured that the reliability of product simultaneously；Pass through
Dynamic/static contact structure in optimization, reduces loop resistance and temperature rise, the through-flow performance of improving product itself, improves dynamic/quiet simultaneously
The reliability of contacts mates；Use the arc suppression of the big gas production of macromolecule, the structure of optimization fusion tube, greatly improving product
Current-carrying and breaking capacity.
Claims (6)
1. an all insulation enclosed load fuse, including upper end insulating inlet wire（1）With external insulation porcelain vase（2）, described upper end
Insulating inlet wire（1）It is arranged on external insulation porcelain vase（2）Upper end, described external insulation porcelain vase（2）It is internally provided with arc-extinguishing stick（3）, described
External insulation porcelain vase（2）Outside is provided with snap ring（4）, described snap ring（4）On be provided with bolt（5）, it is characterised in that：Described outer absolutely
Edge porcelain vase（2）Interior lower end is provided with static contact end cap（6）, described static contact end cap（6）On be provided with fusion tube（7）, described molten
Pipe（7）Lower end is provided with bottom moving contact（8）, described external insulation porcelain vase（2）Bottom is provided with rubber base plate（9）, described fusion tube
（7）Bottom is provided with compression spring（10）, described compression spring（10）It is provided above buffer spring（11）, described stationary contact
Lid（6）It is inside provided with static contact parts（12）, described fusion tube（7）It is internally provided with fuse（13）, described fuse（13）Top sets
It is equipped with contracting arc rod（14）, described contracting arc rod（14）Top is provided with top moving contact（15）, described top moving contact（15）Outside
It is provided with expulsion tube（16）.
2. all insulation enclosed load fuse as claimed in claim 1, it is characterised in that：Described arc-extinguishing stick（3）Upper end sets
It is equipped with compression spring（17）, described upper compression spring（17）On be provided with top static contact（18）.
3. all insulation enclosed load fuse as claimed in claim 1, it is characterised in that：Described rubber base plate（9）On set
It is equipped with lower end insulation outlet（19）.
4. all insulation enclosed load fuse as claimed in claim 1, it is characterised in that：Described fusion tube（7）Top is arranged
There is fusion tube connector（20）.
5. all insulation enclosed load fuse as claimed in claim 1, it is characterised in that：Described static contact end cap（6）On
It is provided with action marker（21）.
6. all insulation enclosed load fuse as claimed in claim 1, it is characterised in that：Described top static contact（18）On
It is provided with buffering spacer（22）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610780131.5A CN106449331A (en) | 2016-08-31 | 2016-08-31 | Full-insulation closed-type load fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610780131.5A CN106449331A (en) | 2016-08-31 | 2016-08-31 | Full-insulation closed-type load fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106449331A true CN106449331A (en) | 2017-02-22 |
Family
ID=58091769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610780131.5A Pending CN106449331A (en) | 2016-08-31 | 2016-08-31 | Full-insulation closed-type load fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106449331A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493078A (en) * | 2018-04-17 | 2018-09-04 | 江苏新澳电力技术有限公司 | All insulation protected cut-out |
| CN108538689A (en) * | 2018-06-12 | 2018-09-14 | 国家电网有限公司 | A kind of integration enclosed type expulsion fuse |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2091424A (en) * | 1933-05-13 | 1937-08-31 | Schweitzer & Conrad Inc | Fuse |
| CN201112314Y (en) * | 2007-05-09 | 2008-09-10 | 日本能源服务株式会社 | High voltage fuse |
| CN101635233A (en) * | 2008-07-24 | 2010-01-27 | 上海市电力公司 | Insulating enclosed type pagoda-shaped fuse |
| CN202473806U (en) * | 2012-03-13 | 2012-10-03 | 上海市电力公司 | Upper structure for fuse protector |
| CN206148391U (en) * | 2016-08-31 | 2017-05-03 | 合保电气（芜湖）有限公司 | Closed load fuse of all insulation |
-
2016
- 2016-08-31 CN CN201610780131.5A patent/CN106449331A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2091424A (en) * | 1933-05-13 | 1937-08-31 | Schweitzer & Conrad Inc | Fuse |
| CN201112314Y (en) * | 2007-05-09 | 2008-09-10 | 日本能源服务株式会社 | High voltage fuse |
| CN101635233A (en) * | 2008-07-24 | 2010-01-27 | 上海市电力公司 | Insulating enclosed type pagoda-shaped fuse |
| CN202473806U (en) * | 2012-03-13 | 2012-10-03 | 上海市电力公司 | Upper structure for fuse protector |
| CN206148391U (en) * | 2016-08-31 | 2017-05-03 | 合保电气（芜湖）有限公司 | Closed load fuse of all insulation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493078A (en) * | 2018-04-17 | 2018-09-04 | 江苏新澳电力技术有限公司 | All insulation protected cut-out |
| CN108538689A (en) * | 2018-06-12 | 2018-09-14 | 国家电网有限公司 | A kind of integration enclosed type expulsion fuse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |