CN207398052U - High-voltage great-current fuse - Google Patents
High-voltage great-current fuse Download PDFInfo
- Publication number
- CN207398052U CN207398052U CN201721220428.2U CN201721220428U CN207398052U CN 207398052 U CN207398052 U CN 207398052U CN 201721220428 U CN201721220428 U CN 201721220428U CN 207398052 U CN207398052 U CN 207398052U
- Authority
- CN
- China
- Prior art keywords
- fuse
- outer tube
- link
- red copper
- support rod
- 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.)
- Active
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052802 copper Inorganic materials 0.000 claims abstract description 20
- 239000010949 copper Substances 0.000 claims abstract description 20
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 8
- 229920000877 Melamine resin Polymers 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical group NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 238000010891 electric arc Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000006004 Quartz sand Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Fuses (AREA)
Abstract
A kind of high-voltage great-current fuse, including hollow outer tube, two pedestals, insulating support rod, several fuse-links, two pedestals are symmetrically fixed at the both ends of outer tube, insulating support rod is arranged on outer tube, and insulating support rod both ends are fixedly connected respectively with pedestal, pedestal includes red copper end, it is sequentially arranged several connection boss that red copper cross cut end (of a beam) and diameter of section sequentially reduce, outer tube both ends are fixed by socket in red copper cross cut end (of a beam), fuse-link is the hollow circular cylinder formed by fuse link enclosing, the both ends of hollow circular cylinder correspond to the surface for being welded on connection boss, fuse link is vertically arranged, uniform intervals are provided with narrow road on fuse link, narrow road includes laterally compact arranged disconnection hole and disconnects the connector formed between hole.When external circuit breaks down, continue high current effect and generate amount of heat, melt the connector that narrow road is interrupted between perforate on fuse link, fuse link disconnects cut-out circuit；The multiple tracks narrow road of disconnection can increase arc extinguishing distance, be segmented the electric arc that goes out.
Description
Technical field
The utility model is related to fuse field, espespecially a kind of high-voltage great-current fuse.
Background technology
Fuse refers to when electric current is more than specified value, with the heat that itself is generated melt is made to fuse, the one of disconnecting circuit
Kind electric appliance.Fuse be according to electric current be more than specified value for a period of time after, with its own generation heat make Melt molten, so as to
Disconnect circuit；With a kind of current protector made of this principle.Fuse be widely used in high and low voltage electric distribution system and
It is using most common guarantor as short circuit and the protector of overcurrent in control system, various electrical equipments and household electrical appliance
Protect one of device.
With the raising that consumer requires consumption experience comfort level, power electronic product drives complicated, big work(function day
The grade of rate hvdc circuit protection demand is also higher and higher.According to the definition of GB13539：1000VAC and more than 1500VDC
Voltage is high voltage, for traditional high voltage direct current fuse, the increase of electric current, voltage, it is meant that the increasing of pipe diameter
Sum it up the lengthening of tube length.Although and traditional ceramic body fuse high temperature resistant, good insulation preformance, be not suitable for high pressure,
The occasion of high current, and it is too big, frangible to conduct oneself with dignity, inconvenience production and installation.
The content of the invention
To solve the above problems, the high pressure that a kind of weight of the utility model offer is extremely light, size is suitable, arc extinction performance is excellent is big
Current fuse.
To achieve the above object, the technical solution adopted in the utility model is：
A kind of high-voltage great-current fuse, including hollow outer tube, two pedestals, insulating support rod, several fuse-links, institute
The both ends that two pedestals are symmetrically fixed at outer tube are stated, the insulating support rod is arranged on outer tube, and insulating support rod
Both ends are fixedly connected respectively with pedestal, and the pedestal includes red copper end, is sequentially arranged red copper cross cut end (of a beam) and diameter of section
Several connection boss sequentially reduced, the outer tube both ends are fixed by socket in red copper cross cut end (of a beam), and the fuse-link is by fusing
The hollow circular cylinder that piece enclosing forms, the both ends of hollow circular cylinder correspond to the surface for being welded on connection boss, and the fuse link erects
Straight to set, uniform intervals are provided with narrow road on fuse link, the narrow road include laterally compact arranged disconnection hole and disconnect hole it
Between the connector that is formed.
Specifically, the pedestal is provided with screw hole, and the insulating support rod is plugged in screw hole.
Specifically, red copper end outer is provided with the first mounting hole, and outer tube both ends are correspondingly arranged on the second mounting hole,
Outer tube is fixedly connected by pin through mounting hole with red copper end.
Specifically, the outer tube is melamine material.
Specifically, the outer tube is filled with quartz sand.
Specifically, the fuse link is silver material.
The beneficial effects of the utility model are：By setting multiple tracks on fuse link by disconnecting between hole and disconnection hole
The narrow road of connector composition, when external circuit breaks down, foreign current is much larger than the rated current of fuse, continues big electricity
Stream effect generates substantial amounts of heat, melts the connector that narrow road is interrupted between perforate on fuse link, and fuse link disconnects cut-out electricity
Road；Fuse link fusing moment can also generate arc voltage, and the multiple tracks narrow road disconnected can increase arc extinguishing distance, be segmented the electric arc that goes out.
Description of the drawings
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the utility model inner body schematic diagram；
Fig. 3 is enlarged drawing at the utility model A；
Fig. 4 is the utility model understructure schematic diagram.
Drawing reference numeral explanation：
1. outer tube；2. pedestal；3. insulating support rod；4. fuse-link；
21. connect boss；22. screw hole；23. red copper end；24 second mounting hole pins；25. the first mounting hole；
41. narrow road；411. disconnect hole；412. connector.
Specific embodiment
- 3 are please referred to Fig.1, the utility model is on a kind of high-voltage great-current fuse, including hollow 1, two bottom of outer tube
Seat 2, insulating support rod 3, fuse-link 4, described two pedestals 2 are symmetrically fixed at the both ends of outer tube 1, the insulating support rod
3 are arranged on inside outer tube 1, and 3 both ends of insulating support rod are fixedly connected respectively with pedestal 2, and the pedestal 2 includes red copper end
23rd, several connection boss 21 that red copper cross cut end (of a beam) and diameter of section sequentially reduce, the outer tube both ends socket are sequentially arranged
Red copper cross cut end (of a beam) is fixed on, the fuse-link 4 is to enclose the hollow circular cylinder formed, the both ends of hollow circular cylinder by fuse link
The corresponding surface for being welded on connection boss 21, the fuse link are vertically arranged, and uniform intervals are provided with narrow road 41, institute on fuse link
Stating narrow road 41 includes laterally compact arranged disconnection hole 411 and disconnects the connector 412 formed between hole 411.
According to the size of current of external circuit, the quantity and diameter of connection boss 21 can be adjusted, more fusing are set
Body 4 meets the requirement of more high current.
Pass through the narrow road that multiple tracks is set to be formed by disconnecting the connector 412 between hole 411 and disconnection hole 411 on fuse link
41, when external circuit breaks down, foreign current is much larger than the rated current of fuse, continues high current effect and generates largely
Heat, melt the connector 412 that narrow road 41 on fuse link is interrupted between perforate 411, fuse link disconnects cut-out circuit；Fusing
Piece fusing moment can also generate arc voltage, and the multiple tracks narrow road 41 disconnected can increase arc extinguishing distance, be segmented the electric arc that goes out.
Specifically, the pedestal 2 is provided with screw hole 22, and the insulating support rod 3 is plugged in screw hole 22.
Insulating support rod 3 is fixedly connected by being plugged in screw hole 22 with pedestal 2, is reduced installation dimension, can be crossed increase
The reliability of fuse simultaneously reduces caloric value.
Specifically, 23 outer of red copper end is provided with the first mounting hole 25, and it is solid that 1 both ends of outer tube are correspondingly arranged on second
Determine hole 24, outer tube 1 is fixedly connected by pin through mounting hole 24 with red copper end 23.
1 both ends of outer tube are fixed on 23 outer of red copper end by pin socket, make fuse entirety secure seal.
Specifically, the outer tube 1 is melamine material.
1 hardness of outer tube made of melamine material is big, wear-resisting, high temperature resistant, corrosion-resistant, is highly suitable as fuse
Protection pipe.
Specifically, 1 inside of outer tube is filled with quartz sand.
Because quartz sand has higher thermal conductivity and insulation performance, 1 inside filling quartz sand of outer tube, quartz sand can be narrow
Electric arc is come into contact in a large area at 41 fusing of footpath, arc energy is absorbed, is quickly cooled down electric arc, achievees the purpose that force arc extinguishing.
Specifically, the fuse link is silver material.
Silver has excellent thermal conductivity and electric conductivity, is good contact material.
Embodiment of above is only that the preferred embodiment of the utility model is described, not to the utility model
Scope be defined, on the premise of the spirit of the design of the utility model is not departed from, this field ordinary skill technical staff to this
The various modifications and improvement that the technical solution of utility model is made should all fall into the guarantor that claims of the utility model determine
In the range of shield.
Claims (6)
1. a kind of high-voltage great-current fuse, it is characterised in that：Including hollow outer tube, two pedestals, insulating support rod, several
Fuse-link, described two pedestals are symmetrically fixed at the both ends of outer tube, and the insulating support rod is arranged on outer tube, and absolutely
Edge supporting rod both ends are fixedly connected respectively with pedestal, the pedestal include red copper end, be sequentially arranged red copper cross cut end (of a beam) and
Several connection boss that diameter of section sequentially reduces, the outer tube both ends are fixed by socket in red copper cross cut end (of a beam), the fuse-link
For the hollow circular cylinder formed by fuse link enclosing, the both ends of hollow circular cylinder correspond to the surface for being welded on connection boss, described
Fuse link is vertically arranged, and uniform intervals are provided with narrow road on fuse link, the narrow road include laterally compact arranged disconnection hole and
Disconnect the connector formed between hole.
2. high-voltage great-current fuse according to claim 1, it is characterised in that：The pedestal is provided with screw hole, described
Insulating support rod is plugged in screw hole.
3. high-voltage great-current fuse according to claim 1, it is characterised in that：Red copper end outer is provided with
One mounting hole, outer tube both ends are correspondingly arranged on the second mounting hole, and outer tube is fixed by pin through two mounting holes with red copper end
Connection.
4. high-voltage great-current fuse according to claim 1, it is characterised in that：The outer tube is melamine material.
5. the high-voltage great-current fuse according to claim 1 or 4, it is characterised in that：The outer tube is filled with stone
Sand.
6. high-voltage great-current fuse according to claim 1, it is characterised in that：The fuse link is silver material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721220428.2U CN207398052U (en) | 2017-09-21 | 2017-09-21 | High-voltage great-current fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721220428.2U CN207398052U (en) | 2017-09-21 | 2017-09-21 | High-voltage great-current fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207398052U true CN207398052U (en) | 2018-05-22 |
Family
ID=62404856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721220428.2U Active CN207398052U (en) | 2017-09-21 | 2017-09-21 | High-voltage great-current fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207398052U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114787955A (en) * | 2019-06-25 | 2022-07-22 | Siba保险丝有限公司 | Fusing conductor and fuse |
| CN115602504A (en) * | 2022-10-17 | 2023-01-13 | 西安中熔电气股份有限公司（Cn） | A small overload current fuse |
-
2017
- 2017-09-21 CN CN201721220428.2U patent/CN207398052U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114787955A (en) * | 2019-06-25 | 2022-07-22 | Siba保险丝有限公司 | Fusing conductor and fuse |
| CN114787955B (en) * | 2019-06-25 | 2024-05-03 | Siba保险丝有限公司 | Fuse conductor and fuse |
| CN115602504A (en) * | 2022-10-17 | 2023-01-13 | 西安中熔电气股份有限公司（Cn） | A small overload current fuse |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |