CN102842472B - Special high pressure current-limiting fuse in closed cabinet - Google Patents
Special high pressure current-limiting fuse in closed cabinet Download PDFInfo
- Publication number
- CN102842472B CN102842472B CN201210332833.9A CN201210332833A CN102842472B CN 102842472 B CN102842472 B CN 102842472B CN 201210332833 A CN201210332833 A CN 201210332833A CN 102842472 B CN102842472 B CN 102842472B
- Authority
- CN
- China
- Prior art keywords
- current
- voltage
- blanking cover
- plug
- limitation fuse
- 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
- 229910045601 alloy Inorganic materials 0.000 claims description 15
- 239000000956 alloy Substances 0.000 claims description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 229910001369 Brass Inorganic materials 0.000 claims description 6
- 239000010951 brass Substances 0.000 claims description 6
- 229910001006 Constantan Inorganic materials 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000011257 shell material Substances 0.000 description 1
Landscapes
- Fuses (AREA)
Abstract
The invention relates to a special high pressure current-limiting fuse in a closed cabinet, comprising a high pressure current-limiting fuse body; a set of temperature sensing element components are retrofitted on the impactor part of the high pressure current-limiting fuse body and is capable of realizing a temperature limitation function. Due to the fact that a set of temperature sensing element components which are capable of realizing the temperature limitation function are retrofitted on the impactor part, thus, the invention is capable of ensuring that the high pressure current-limiting fuse has the temperature limitation function, therefore, the fuse per se is effectively protected and the service life of the fuse is prolonged.
Description
Technical field
The invention belongs to fuse technical field, relate to a kind of high-voltage and current-limitation fuse, especially a kind ofly seal the high-voltage and current-limitation fuse that cabinet special secondary school is used.
Background technology
In enclosed switchgear, gas-filling cabinet or sealed type fuse sleeve and various switchgear, because can causing fuse internal temperature, overcurrent rises to a few Baidu Celsius, in this case, when fuse packs the narrow space of switchgear into, temperature can reach the critical value of fuse encapsulating material, cause fuse shell material aging, even produce booster danger.And fuse of the prior art does not possess temperature limiting function, very easily because the problems referred to above are damaged.
Summary of the invention
The object of the invention is to overcome the shortcoming of above-mentioned prior art; a kind of high-voltage and current-limitation fuse that cabinet special secondary school is used that seals is provided; this kind of high-voltage and current-limitation fuse by installing a set of temperature sensitive member assembly that can realize temperature limiting function additional on striker parts; thereby can ensure that high-voltage and current-limitation fuse has temperature limiting function; can effectively protect fuse itself, life-saving.
The object of the invention is to solve by the following technical programs:
The high-voltage and current-limitation fuse that this sealing cabinet special secondary school is used, comprises high-voltage and current-limitation fuse body, installs a set of temperature sensitive member assembly that can realize temperature limiting function on the striker parts of described high-voltage and current-limitation fuse body additional.
Said temperature sensing element assembly forms by hanging pin, blanking cover, plug, high temperature alloy silk and conduction spring hook; Described plug is pressed in the fairlead left end hole of high-voltage and current-limitation fuse body, and the outboard end of described plug is provided with half arc fluting, and described blanking cover location is pressed in corresponding half arc fluting of plug; On described blanking cover and plug, be provided with the axial aperture that can pass for high temperature alloy silk; The lateral surface of described blanking cover is provided with hangs pin, and described conduction spring hooks the Compress Spring one end in the ram that is arranged on high-voltage and current-limitation fuse body; One end with high temperature alloy silk of described extension pin is connected, and the other end of high temperature alloy silk hooks and retracts and stretch out the aperture on plug and blanking cover through conduction spring, then penetrates capillary brass pipe and copper pipe fitting, then is connected with constantan wire extension spring.
Above-mentioned blanking cover is formed by copper plate punching, has the finger setting of extension groove in the arranged outside of blanking cover.
The high-voltage and current-limitation fuse that sealing cabinet special secondary school of the present invention is used, has following beneficial effect:
1. the overtemperature protection of switchgear: can be by the temperature limiting of fuse sleeve inner in 100 DEG C, make continuously normal safe power supply realize optimization.
2. fault current limiting: fuse is in the time of its full-load current, as long as temperature exceedes feasible value, it is possible cut-offfing.Switching devices, this means best protection, because there is enough difference between the full-load current of each transformer, and the highest 150% of the fuse rated current that even can reach of its overload.
3. improve the composite behaviour of on-load switch and fuse.
4. effectively extended the useful life of fuse.
In a word, the present invention makes the temperature rise restriction that chance failure electric current causes become possibility, realized safety, efficiently, power supply continuously.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Wherein: 1. constantan wire extension spring; 2. copper pipe fitting; 3. hang pin; 4. blanking cover; 5. plug; 6. capillary brass pipe; 7. spring; 8. high temperature alloy silk; 9. ram; 10. fairlead; 11. plain washers; 12. springs hook.
Embodiment
The present invention seal high-voltage and current-limitation fuse that cabinet special secondary school uses be on the basis of the high-voltage and current-limitation fuse of prior art, carry out improved, it comprises high-voltage and current-limitation fuse body, installs a set of temperature sensitive member assembly that can realize temperature limiting function on the striker parts of high-voltage and current-limitation fuse body additional.Below in conjunction with accompanying drawing, the present invention is described in further detail:
Referring to Fig. 1, temperature sensitive member assembly of the present invention forms by hanging pin 3, blanking cover 4, plug 5, high temperature alloy silk 8 and conduction spring hook 12; Plug 5 is pressed in the fairlead 10 left end holes of high-voltage and current-limitation fuse body, the outboard end of plug 5 is provided with half arc fluting, blanking cover 4 location are pressed in corresponding half arc fluting of plug 5, are provided with the axial aperture that can pass for high temperature alloy silk 8 on described blanking cover 4 and plug 5; The lateral surface of blanking cover 4 is provided with hangs pin 3, and conduction spring hooks 12 Compress Spring 7 one end that are arranged in the ram 9 of high-voltage and current-limitation fuse body; The one end with high temperature alloy silk 8 that hangs pin 3 is connected, and the other end of high temperature alloy silk 8 hooks 12 through conduction spring and retracts and stretch out the aperture on plug 5 and blanking cover 4, then penetrates capillary brass pipe 6 and copper pipe fitting 2, then is connected with constantan wire extension spring 1.
The above-described extension pin 3 of the present invention is to be made up of the special material with enough bending strengths (> 100MPa).
Described blanking cover 4 is formed by copper plate punching, has the finger setting of extension groove in the arranged outside of blanking cover 4.The effect of blanking cover 4 is to hang finger setting, support and isolation plug; Plug 5 forms by having the injection of good insulating performance and high-temperature resistance plastice molding, and its effect is to hold up sensing element to be fixed on striker fairlead; High temperature alloy silk 8 is decisive elements of conduction temperature and spring energy-storage.
Installation process of the present invention is as follows:
Described high temperature alloy silk 8 one end with hang together with pin 3 waists interweave and be tightened in, the other end hooks 12 through spring and retracts and stretch out plug 5, blanking cover 4 apertures and penetrate capillary brass pipe 6 and copper pipe fitting 2 with constantan wire extension spring 1, pack ram 9 into from Fig. 1 right-hand member, while holding Compress Spring 7 to extreme position left, copper pipe fitting 2 and capillary brass pipe 6 are tightened in roll compacting.This device installation.
The present invention is arranged on temperature sensitive member assembly on striker, and in system, once the temperature that occurs not allowing, no matter be what reason, striker all can disconnect loop.Effectively protect device security.
Claims (2)
1. seal the high-voltage and current-limitation fuse that cabinet special secondary school is used, it is characterized in that, comprise high-voltage and current-limitation fuse body, on the striker parts of described high-voltage and current-limitation fuse body, install a set of temperature sensitive member assembly that can realize temperature limiting function additional; Described temperature sensitive member assembly hooks (12) formation by hanging pin (3), blanking cover (4), plug (5), high temperature alloy silk (8) and conduction spring;
Described plug (5) is pressed in fairlead (10) the left end hole of high-voltage and current-limitation fuse body,
The outboard end of described plug (5) is provided with half arc fluting, and described blanking cover (4) location is pressed in corresponding half arc fluting of plug (5); On described blanking cover (4) and plug (5), be provided with the axial aperture that can pass for high temperature alloy silk (8); The lateral surface of described blanking cover (4) is provided with hangs pin (3), and described conduction spring hook (12) is arranged on interior Compress Spring (7) one end of ram (9) of high-voltage and current-limitation fuse body; Described extension pin (3) is connected with one end of high temperature alloy silk (8), the other end of high temperature alloy silk (8) hooks (12) through conduction spring and retracts and stretch out the aperture on plug (5) and blanking cover (4), then penetrate capillary brass pipe (6) and copper pipe fitting (2), then be connected with constantan wire extension spring (1).
2. the high-voltage and current-limitation fuse that sealing cabinet special secondary school according to claim 1 is used, is characterized in that, described blanking cover (4) is formed by copper plate punching, has the finger setting of extension groove in the arranged outside of blanking cover (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210332833.9A CN102842472B (en) | 2012-09-11 | 2012-09-11 | Special high pressure current-limiting fuse in closed cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210332833.9A CN102842472B (en) | 2012-09-11 | 2012-09-11 | Special high pressure current-limiting fuse in closed cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102842472A CN102842472A (en) | 2012-12-26 |
| CN102842472B true CN102842472B (en) | 2014-12-10 |
Family
ID=47369725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210332833.9A Active CN102842472B (en) | 2012-09-11 | 2012-09-11 | Special high pressure current-limiting fuse in closed cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102842472B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441050B (en) * | 2013-09-18 | 2016-04-20 | 上海电器陶瓷厂有限公司 | A kind of striker for oil fuse |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2313290Y (en) * | 1997-07-08 | 1999-04-07 | 西安赛德利电器公司 | High-voltage current-limited thermal element for protecting transformer |
| CN201655725U (en) * | 2010-03-18 | 2010-11-24 | 陕西振力电力科技有限公司 | High voltage current limiting fuse with fusing indication function |
| CN202816842U (en) * | 2012-09-11 | 2013-03-20 | 陕西振力电力科技有限公司 | Special-purpose high-voltage current-limiting fuse in closed cabinet |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2373109B (en) * | 2001-02-13 | 2004-09-15 | Cooper | Full range high voltage current limiting fuse |
-
2012
- 2012-09-11 CN CN201210332833.9A patent/CN102842472B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2313290Y (en) * | 1997-07-08 | 1999-04-07 | 西安赛德利电器公司 | High-voltage current-limited thermal element for protecting transformer |
| CN201655725U (en) * | 2010-03-18 | 2010-11-24 | 陕西振力电力科技有限公司 | High voltage current limiting fuse with fusing indication function |
| CN202816842U (en) * | 2012-09-11 | 2013-03-20 | 陕西振力电力科技有限公司 | Special-purpose high-voltage current-limiting fuse in closed cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102842472A (en) | 2012-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3678155A1 (en) | Circuit breaker | |
| CN107077931B (en) | Overvoltage protection device with short-circuit device | |
| CN104813432B (en) | Surge protection device having short-circuit current protection function | |
| CN202905645U (en) | Temperature sensing type temperature fuse provided with contacts | |
| CN108428526A (en) | A kind of lightning arrester core body and arrester | |
| CN203300549U (en) | Temperature fuse protector with dual-protection function | |
| CN101320658A (en) | Surge protector with backup protection | |
| CN107452574B (en) | Direct current fast acting fuse for electric automobile | |
| CN102842472B (en) | Special high pressure current-limiting fuse in closed cabinet | |
| CN103839735A (en) | Magnetic circuit structure of magnetic trip | |
| CN105632837A (en) | Binding post and circuit interrupting device of high-voltage power distribution line | |
| CN202816842U (en) | Special-purpose high-voltage current-limiting fuse in closed cabinet | |
| CN101836340B (en) | Damage-limiting switching device for surge arresters | |
| CN106057605A (en) | No-fuse repeatable operation drop-type switching device | |
| CN203397810U (en) | Directional detachment arrester | |
| CN202259013U (en) | Circuit Protection Structure for Temperature Sensing Power Off | |
| CN105556636A (en) | Fuse element for an overvoltage protection device | |
| CN202019116U (en) | Earth leakage protection plug | |
| CN202422895U (en) | Thermo-explosive type disconnecting arrester | |
| CN101819905B (en) | Built-in protector for electric heating tube | |
| CN105551875A (en) | High-voltage power transmission line terminal breaker device | |
| CN106229213B (en) | interrupt relay | |
| CN203055813U (en) | DC circuit breaker | |
| CN204303602U (en) | Fast arc extinction device | |
| CN105869957B (en) | A kind of structure for reducing breaker installation bottom surface temperature rise |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180322 Address after: Five Shaanxi high tech Zone Shanglinyuan road 710075 Xi'an City No. 2055 Patentee after: Xi'an Xiangyuan vibration electric Co., Ltd. Address before: 710032 East Second Ring Road, Xi'an City, Shaanxi Province, Lu Tong Park, F4-402 Patentee before: Shaanxi Zhenli Electric Power trechnology Co., Ltd. |
|
| TR01 | Transfer of patent right |