CN202816842U - Special-purpose high-voltage current-limiting fuse in closed cabinet - Google Patents
Special-purpose high-voltage current-limiting fuse in closed cabinet Download PDFInfo
- Publication number
- CN202816842U CN202816842U CN 201220459416 CN201220459416U CN202816842U CN 202816842 U CN202816842 U CN 202816842U CN 201220459416 CN201220459416 CN 201220459416 CN 201220459416 U CN201220459416 U CN 201220459416U CN 202816842 U CN202816842 U CN 202816842U
- Authority
- CN
- China
- Prior art keywords
- current
- voltage
- plug
- blanking cover
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Fuses (AREA)
Abstract
The utility model relates to a special-purpose high-voltage current-limiting fuse in a closed cabinet, comprising a high-voltage current-limiting fuse body, wherein a set of temperature sensing element assembly capable of realizing a temperature limitation function is additionally arranged on a striker component of the high-voltage current-limiting fuse body. According to the special-purpose high-voltage current-limiting fuse of the utility model, by additionally arranging one set of temperature sensing element assembly capable of realizing the temperature limitation function on the striker component, the high-voltage current-limiting fuse can be ensured to have the temperature limitation function, thus the fuse can be effectively protected, and the service life of the fuse can be prolonged.
Description
Technical field
The utility model belongs to the fuse technical field, relates to a kind of high-voltage and current-limitation fuse, especially a kind ofly seals the high-voltage and current-limitation fuse that the cabinet special secondary school is used.
Background technology
In enclosed switchgear, gas-filling cabinet or sealed type fuse sleeve and various switchgear, because overcurrent can cause the fuse internal temperature to rise to a few Baidu Celsius, in this case, when fuse is packed the narrow space of switchgear into, temperature can reach the critical value of fuse encapsulating material, cause the fuse shell material aging, even it is dangerous to produce booster.And fuse of the prior art does not possess the temperature limiting function, very easily owing to the problems referred to above are damaged.
The utility model content
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art; a kind of high-voltage and current-limitation fuse that the cabinet special secondary school is used that seals is provided; this kind high-voltage and current-limitation fuse can be realized the temperature sensitive member assembly of temperature limiting function by install a cover additional at the striker parts; thereby can guarantee that high-voltage and current-limitation fuse has the temperature limiting function; can effectively protect fuse itself, life-saving.
The purpose of this utility model solves by the following technical programs:
The high-voltage and current-limitation fuse that this sealing cabinet special secondary school is used comprises the high-voltage and current-limitation fuse body, installs the temperature sensitive member assembly that a cover can be realized the temperature limiting function additional at the striker parts of described high-voltage and current-limitation fuse body.
Said temperature sensing element assembly is colluded by extension pin, blanking cover, plug, high temperature alloy silk and conduction spring and consists of; 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; Be provided with the axial aperture that to pass for the high temperature alloy silk on described blanking cover and the plug; The lateral surface of described blanking cover is provided with hangs pin, and described conduction spring colludes Compress Spring one end in the ram that is arranged on the high-voltage and current-limitation fuse body; Described extension pin be connected with the end high temperature alloy silk, the other end of high temperature alloy silk passes the conduction spring and colludes and retract and stretch out aperture on plug and the blanking cover, then penetrates capillary brass pipe and copper pipe fitting, is connected with the constantan wire extension spring again.
Above-mentioned blanking cover is formed by the copper plate punching out, in the arranged outside of blanking cover the finger setting of extension groove is arranged.
The high-voltage and current-limitation fuse that sealing cabinet special secondary school of the present utility model is used has following beneficial effect:
1. the overtemperature protection of switchgear: can be with the temperature limiting of fuse sleeve inner in 100 ℃, so that continuously normal safe power supply has been realized optimization.
2. fault current limiting: fuse is when its full-load current, as long as temperature surpasses 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, its overload is the highest even can reach 150% of fuse rated current.
3. improve the composite behaviour of on-load switch and fuse.
4. effectively prolonged the useful life of fuse.
In a word, the temperature rise restriction that the utility model causes the chance failure electric current becomes possibility, has realized safety, efficient, continuously power supply.
Description of drawings
Fig. 1 is structural representation of the present utility model.
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 washer; 12. spring colludes.
Embodiment
The high-voltage and current-limitation fuse that the utility model sealing cabinet special secondary school is used is to carry out improved on the basis of the high-voltage and current-limitation fuse of prior art, it comprises the high-voltage and current-limitation fuse body, installs the temperature sensitive member assembly that a cover can be realized the temperature limiting function additional at the striker parts of high-voltage and current-limitation fuse body.Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:
Referring to Fig. 1, temperature sensitive member assembly of the present utility model colludes 12 by extension pin 3, blanking cover 4, plug 5, high temperature alloy silk 8 and conduction spring and consists of; 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 plug 5 corresponding half arc flutings, are provided with the axial aperture that can pass for high temperature alloy silk 8 on described blanking cover 4 and the plug 5; The lateral surface of blanking cover 4 is provided with hangs pin 3, and the conduction spring colludes 12 Compress Spring 7 one ends that are arranged in the ram 9 of high-voltage and current-limitation fuse body; Hang that pin is 3 to be connected with end high temperature alloy silk 8, the other end of high temperature alloy silk 8 passes and conducts electricity spring and collude 12 and retract and stretch out aperture on plug 5 and the blanking cover 4, then penetrates capillary brass pipe 6 and copper pipe fitting 2, is connected with constantan wire extension spring 1 again.
The above-described extension pin 3 of the utility model is that (＞100MPa) special material is made by having enough bending strengths.
Described blanking cover 4 is formed by the copper plate punching out, in the arranged outside of blanking cover 4 finger setting of extension groove is arranged.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 the striker fairlead; High temperature alloy silk 8 is decisive elements of conduction temperature and spring energy-storage.
Installation process of the present utility model is as follows:
Described high temperature alloy silk 8 one ends interweave with extension pin 3 waists and are tightened in, the other end passes spring and colludes 12 and retract 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, from Fig. 1 right-hand member ram 9 of packing into, the spring 7 of side pressure contracting left during to extreme position roll compacting tighten copper pipe fitting 2 and capillary brass pipe 6.This installs installation.
The utility model is arranged on the temperature sensitive member assembly on the striker, and in system in case during the temperature that occurs not allowing, no matter be what reason, striker all can disconnect the loop.Effectively protected device security.
Claims (3)
1. one kind is sealed the high-voltage and current-limitation fuse that the cabinet special secondary school is used, and it is characterized in that, comprises the high-voltage and current-limitation fuse body, installs the temperature sensitive member assembly that a cover can be realized the temperature limiting function additional at the striker parts of described high-voltage and current-limitation fuse body.
2. the high-voltage and current-limitation fuse used of sealing cabinet special secondary school according to claim 1 is characterized in that, described temperature sensitive member assembly colludes (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, and 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); Be provided with the axial aperture that to pass for high temperature alloy silk (8) on described blanking cover (4) and the plug (5); The lateral surface of described blanking cover (4) is provided with hangs pin (3), and described conduction spring colludes interior Compress Spring (7) one ends of ram (9) that (12) are arranged on the high-voltage and current-limitation fuse body; End with high temperature alloy silk (8) of described extension pin (3) is connected, the other end of high temperature alloy silk (8) passes the conduction spring and colludes (12) and retract and stretch out aperture on plug (5) and the blanking cover (4), then penetrate capillary brass pipe (6) and copper pipe fitting (2), be connected with constantan wire extension spring (1) again.
3. the high-voltage and current-limitation fuse used of sealing cabinet special secondary school according to claim 2 is characterized in that described blanking cover (4) is formed by the copper plate punching out, in the arranged outside of blanking cover (4) finger setting of extension groove is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220459416 CN202816842U (en) | 2012-09-11 | 2012-09-11 | Special-purpose high-voltage current-limiting fuse in closed cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220459416 CN202816842U (en) | 2012-09-11 | 2012-09-11 | Special-purpose high-voltage current-limiting fuse in closed cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202816842U true CN202816842U (en) | 2013-03-20 |
Family
ID=47875684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220459416 Withdrawn - After Issue CN202816842U (en) | 2012-09-11 | 2012-09-11 | Special-purpose high-voltage current-limiting fuse in closed cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202816842U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842472A (en) * | 2012-09-11 | 2012-12-26 | 陕西振力电力科技有限公司 | Special high pressure current-limiting fuse in closed cabinet |
-
2012
- 2012-09-11 CN CN 201220459416 patent/CN202816842U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842472A (en) * | 2012-09-11 | 2012-12-26 | 陕西振力电力科技有限公司 | Special high pressure current-limiting fuse in closed cabinet |
| CN102842472B (en) * | 2012-09-11 | 2014-12-10 | 陕西振力电力科技有限公司 | Special high pressure current-limiting fuse in closed cabinet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104813432B (en) | Surge protection device having short-circuit current protection function | |
| CN110429489B (en) | Power box convenient to cut off power supply fast | |
| CN204927219U (en) | Totally closed slip fuse | |
| CN108493035A (en) | Disconnecting switch equipped with arc initiation device | |
| 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 | |
| CN102842472B (en) | Special high pressure current-limiting fuse in closed cabinet | |
| CN202013858U (en) | Built-in drop-out fuse for fully insulated melt pipe | |
| CN208189469U (en) | Disconnecting switch equipped with arc initiation device | |
| KR200475876Y1 (en) | Sealing device for transformer | |
| CN205564694U (en) | High voltage current limiting fuse is used in gamut protection | |
| CN101964245A (en) | Underground totally-sealed combined transformer with lighting protection, overvoltage protection and overcurrent protection | |
| CN207503820U (en) | A kind of pneumatic type low tension switch | |
| CN105556636A (en) | Fuse element for an overvoltage protection device | |
| CN205789779U (en) | Breaker of plastic casing | |
| CN205846710U (en) | A kind of protection device of fuse | |
| CN105551875A (en) | High-voltage power transmission line terminal breaker device | |
| CN204189754U (en) | A kind of easy-to-mount single-column all insulation crane | |
| CN202422895U (en) | Thermo-explosive type disconnecting arrester | |
| CN204303602U (en) | Fast arc extinction device | |
| CN204332806U (en) | Insulating polar pole | |
| CN203260442U (en) | Automatic splitting type lightning arrester | |
| CN214958814U (en) | Safety isolation device for battery high-voltage wire connection part | |
| CN211208381U (en) | Vacuum load switch fuse | |
| CN212848242U (en) | Wire inlet end mutual inductor device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130320 Effective date of abandoning: 20141210 |
|
| RGAV | Abandon patent right to avoid regrant |