CN202423191U - Fuse tube for high-voltage fuse - Google Patents
Fuse tube for high-voltage fuse Download PDFInfo
- Publication number
- CN202423191U CN202423191U CN2011205742175U CN201120574217U CN202423191U CN 202423191 U CN202423191 U CN 202423191U CN 2011205742175 U CN2011205742175 U CN 2011205742175U CN 201120574217 U CN201120574217 U CN 201120574217U CN 202423191 U CN202423191 U CN 202423191U
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- fuse
- main body
- cover
- tube
- body insulator
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Abstract
The utility model discloses a fuse tube for a high-voltage fuse. The fuse tube can be used for easily carrying out capping operation at the lower part of a main body insulator in the operation of opening-losing operation of a load of a distribution line or mounting-dismounting operation such as exchange of the fuse tube. The fuse tube is accommodated inside the cylindrical main body insulator; an upper electrode is fixed at the upper end of the main body insulator; and a lower electrode is fixed on the lateral surface at the lower part of the main body insulator. The fuse tube is provided with an insulating tube, a lower contact, a display tube, an energizing part, a fuse wire and a cap covering part, wherein an upper tubular contact is fixed at the upper end of the insulating tube; the insulating tube penetrates through and is mounted on the lower contact; a annular contact part is arranged on the lower contact; the display tube is fixedly mounted at the lower end of the insulating tube; the energizing part is arranged between the lower contact and the display tube; the fuse wire is mounted in the insulating tube and is arranged between the upper contact and the lower contact by the energizing part in a stretching way; and the cap closing part is embedded in the lower end part of the insulating tube and is used for capping the lower part of the insulator. A flange part is arranged on the outer circumferential surface of the cap closing part and is abutted against the inner wall at the lower part of the main body insulator.
Description
Technical field
The utility model relates to a kind of fuse tube that is used for high-tension fuse.
Background technology
In the past, known promising protection power distribution transformer was provided with, in porcelain system main body insulator, was taking in the high-tension fuse of fuse tube.Be provided with upper electrode and lower electrode in this high-tension fuse.The fuse tube is connected upper electrode with lower electrode.In the upper end of fuse tube, be provided with the insulating cylinder of having fixed the tubular upper contact.In insulating cylinder, run through that the bottom contact with ring-type contact site being installed.Lower end at insulating cylinder is fixed with display barrel.Between bottom contact and display barrel, be provided with the parts of energizing.In insulating cylinder, between top contact and bottom contact, be provided with fuse through the parts stretching of energizing.The electrical fuse element of fuse and fuse lead-in wire are cascaded.Front end at the fuse lead-in wire is provided with splicing ear.On the fixed part that is arranged on the contact of bottom, the binding terminal has been fixedly clamped.Lower end at the main body insulator is fixed with lower cover.Peristome in lower cover is equipped with airtight bolt, the lower end of this airtight bolt capping main body insulator, and in the operations such as exchange of load opening operation that carries out distribution line or fuse tube, can load and unload.Airtight bolt is tied through linking belt and lower cover, when lower cover is taken off, hangs downwards.
Patent documentation 1: Chinese patent numbers 200920161173.6
Patent documentation 2: Chinese patent numbers 200920161174.0
When the load opening operation of the distribution line in carrying out high-tension fuse or the handling operations such as exchange of fuse tube, the operating personnel climbs up electric pole, with can be safe and easy mode of operation use hook stick.At this moment, airtight bolt is taken off from lower cover opening carry out handling operation under the bolt state in because airtight bolt is tied through linking belt and lower cover, so airtight bolt is hung downwards from lower cover.Then; After operation is over; When lower cover is installed, the protuberance of sealing bolt is inserted the inserting in the hole of front end of hook stick at the airtight bolt of the bolt state of opening that will hang from lower cover through linking belt downwards, hook stick is operated so that airtight bolt is mounted to lower cover.
Yet, hang downwards from lower cover through linking belt owing to open the airtight bolt of bolt state, so be in non-persistent state.So, be not easy front end with the protuberance insertion hook stick of airtight bolt.Thereby expectation becomes easy with the operation of capping main body insulator bottom.
The utility model content
The utility model In view of the foregoing proposes just; Its purpose is to provide a kind of when the handling operations such as exchange of the load folding operation of carrying out distribution line or fuse tube, can easily carry out the high-tension fuse of the capping operation of main body insulator bottom and use the fuse tube.
In order to achieve the above object; A mode of the utility model is that a kind of high-tension fuse is used the fuse tube, is housed in the inside of main body insulator cylindraceous; The upper end of this main body insulator is fixed with upper electrode; Lower side is fixed with lower electrode, and said high-tension fuse possesses with the fuse tube: insulating cylinder is fixed with the top contact of tubulose in the upper end; The bottom contact runs through that said insulating cylinder being installed, and has the contact site of ring-type; The parts of energizing are set between said bottom contact and the said display barrel; Fuse is installed in the said insulating cylinder, and this fuse is stretched by the said parts of energizing and is arranged between said top contact and the said bottom contact; And close cover; It is entrenched on the bottom of said insulating cylinder; This closes the bottom capping of cover with said main body insulator, and the said outer peripheral face that closes cover is provided with flange part, and this flange part is connected on the lower inner wall of said main body insulator.
Constitute according to this,, and the flange part that is located on the outer peripheral face that closes cover is connected on the lower inner wall of main body insulator closing on the bottom that cover is entrenched in insulating cylinder of capping main body insulator bottom.Then, when the bottom of capping main body insulator, the operator will be equipped with the fuse wound packages that closes cover and after on the hook stick, this fuse tube will be installed in the main body insulator again.So, can and close cover with the fuse tube and be installed in simultaneously on the main body insulator.Therefore, the airtight bolt under no longer need hanging with linking belt, thus can easily carry out the capping operation of main body insulator bottom.In addition because main body insulator bottom closed the cover capping, so electro-mechanical part can not expose, thereby the safety of becoming can suppress inner stained of main body insulator simultaneously.
The other type of the utility model does, said high-tension fuse possesses the display barrel that is packed in said insulating cylinder lower end with the fuse tube, and the said cover that closes is entrenched in the said display barrel, and this closes the bottom capping of cover with said main body insulator.
Constitute according to this, be embedded in the display barrel that is packed in the insulating cylinder lower end closing cover.Therefore, can be with the bottom of simple structure capping main body insulator.
The other type of the utility model does, saidly closes the resettlement section that cover possesses the lead-in wire of accommodating said fuse.
According to this formation, the said cover that closes possesses the resettlement section, and the lead-in wire that is exposed at the outside fuse in insulating cylinder lower end is accommodated in this resettlement section.Therefore owing to can be easily accommodate to fuse lead-in wire 46, so can be easily with closing on the bottom that cover is installed in insulating cylinder.
The other type of the utility model is that the said cover that closes is used to show the fusing of said fuse by painted.
According to this formation, carried out painted to closing cover.Therefore, make in blown fuse and to close cover from the main body insulator when outstanding, can be easily with the fusing of visual confirmation fuse.
According to the utility model, when the handling operations such as exchange of the load folding operation of carrying out distribution line or fuse tube, can easily carry out the capping operation of main body insulator bottom.
Description of drawings
Fig. 1 is the cutaway view that shows the summary structure of high-tension fuse.
Fig. 2 shows the cutaway view of high-tension fuse with the structure of fuse tube.
Fig. 3 shows the cutaway view of high-tension fuse with the structure of fuse tube
Symbol description
1 ... High-tension fuse; 10 ... The main body insulator; 11 ... Upper chambers; 12 ... Bottom compartment; 14 ... Lower ending opening portion; 15 ... Lower sides; 21 ... The upper mould awl; 23 ... Upper electrode; 31 ... The lower die awl; 34 ... Lower electrode; 35 ... The extinguishing arc tube; 40 ... The fuse tube; 41 ... The top contact; 42 ... Insulating cylinder; 44 ... Fuse; 45 ... Electrical fuse element; 46 ... The fuse lead-in wire; 47 ... The bottom contact; 47a ... Contact site; 47b ... Fixed part; 48 ... Display barrel; 49 ... Spring; 50 ... Trip bolt; 58 ... Lower cover; 60 ... Close cover; 61 ... Cylindrical portion; 62 ... Flange part; 63 ... The resettlement section.
Embodiment
(the 1st execution mode)
As shown in Figure 1, the porcelain system main body insulator 10 of high-tension fuse 1 forms cylindric.Be formed with a plurality of insulation pleats 18 on the outer peripheral face of main body insulator 10.The lower ending opening of main body insulator 10 forms lower ending opening portion 14.In the inside of main body insulator 10, be formed with columned upper chambers 11 and columned bottom compartment 12, bottom compartment 12 is communicated with the bottom of upper chambers 11, and its internal diameter enlarges greatlyyer than upper chambers 11.
In high-tension fuse 1, taken in fuse tube 40 in upper chambers 11 in main body insulator 10 and the bottom compartment 12.In high-tension fuse 1, be provided with upper electrode 23 and lower electrode 34.In the upper end 13 of main body insulator 10, pasting conical upper mould awl 21 through adhesive.The external cable that on the lead-out wire of upper mould awl 21, is connecting distribution line.In addition, on the lower sides 15 of main body insulator 10, pasting conical lower die awl 31 through adhesive.On the lead-out wire of lower die awl 31, connecting the machines such as transformer that are located on the distribution line through external cable.
As shown in Figure 2, be fixed with lower cover 58 at the lower ending opening portion 14 usefulness adhesives 17 of bottom compartment 12, this lower cover 58 covers the inwall 12a of bottom compartment 12.Lower cover 58 forms roughly cylindric, and its outer peripheral face is made up of minor diameter part 58a and large-diameter portion 58b, on the boudary portion of minor diameter part 58a and large-diameter portion 58b, is formed with step surface 58c.
In display barrel 48 chimeric have with the lower ending opening portion capping of lower cover 58 close cover 60, this closes cover 60 and has formed the round-ended cylinder shape.Close cover 60 and form by the elastomeric material of flame retardancy or soft elastomeric elements such as synthetic resin, and by painted.The flange part 62 of the periphery lower end of closing cover 60 and possessing the cylindrical portion 61 that is entrenched in the display barrel 48, be formed at cylindrical portion 61 and to being exposed at the resettlement section 63 that display barrel 48 outside fuses lead-in wires 46 are accommodated.Flange part 62 is connected on the inwall 58e of lower cover 58, with bottom compartment 12 sealings of main body insulator 10.At this, the inwall 58e of lower cover 58 is equivalent to the lower inner wall of main body insulator 10.
Then, the action to the high-tension fuse 1 that constitutes with above-mentioned mode describes.
One has super-high-current to flow through in the high-tension fuse 1, and the electrical fuse element 45 of fuse 44 will fuse.At this moment, the tensioning state of fuse lead-in wire 46 is disengaged, and the insulating cylinder 42 of fuse tube 40 is moved downwards based on the elastic force of spring 49, is forced and moves to the position that engages with bottom contact 47.Pressure through insulating cylinder 42 is moved, and display barrel 48 also moves downwards, and the front end that closes the flange part 62 of cover 60 also moves downwards when being connected on the inwall 58e of lower cover 58.Then, at top contact 41 when upper electrode 23 breaks away from, the flange part 62 that closes cover 60 from lower cover 58, be that the below of main body insulator 10 is outstanding.Therefore, the information that fused of the electrical fuse element 45 of high-tension fuse 1 is reported to the outside.The operating personnel can be through coming the information that has super-high-current to pass through with visual confirmation to the outstanding cover 60 that closes in the below of main body insulator 10.
When in construction etc., distribution line being loaded opening operation; Or when taking off fuse tube 40 owing to reasons such as exchanges; The cover 60 that closes in the display barrel 48 that is assemblied in the high-tension fuse 1 is inserted in the chimeric cartridge unit of hook sticks, and the chimeric cartridge unit of hook stick is entrenched in closes on the illustrated holding section of not giving of cover 60.Then, owing under this chimerism, hook stick is drawn downwards, the engaging of lower electrode 34 and bottom contact 47 will be disengaged, so can fuse tube 40 be pulled out from high-tension fuse 1.
With fuse tube 40 when high-tension fuse 1 is installed, will close cover 60 in advance and be installed in the fuse tube 40.Then, with closing in the chimeric cartridge unit that cover 60 is inserted into hook stick, the chimeric cartridge unit of hook stick is entrenched in closes on the illustrated holding section of not giving of cover 60.Under this chimerism, utilize hook stick, the front end of fuse tube 40 is inserted from the lower end of high-tension fuse 1 to the inside.At this moment, the flange part 62 that closes cover 60 is inserted in the lower cover 58 with the mode with the inwall 58e butt of lower cover 58.Then, lower electrode 34 is engaged with bottom contact 47, fuse tube 40 is remained in the main body insulator 10.
Then, with the chimeric releasing between the chimeric cartridge unit that closes illustrated holding section of not giving of cover 60 and hook stick, it is constant to keep the state that fuse tube 40 is installed on the high-tension fuse 1, only hook stick is unloaded from main body insulator 10.One takes off hook stick from fuse tube 40, the flange part 62 that closes cover 60 will be connected on the inwall 58e of lower cover 58, with bottom compartment 12 cappings of main body insulator 10.
Through the execution mode of above explanation, can obtain following effect.
(1) will carry out closing on the bottom that cover 60 is entrenched in insulating cylinder 42 of capping to the bottom compartment 12 of main body insulator 10, the flange part 62 that is located on the outer peripheral face that closes cover 60 is connected on the inwall 58e of lower cover 58.That is to say that the flange part 62 that closes cover 60 is connected on the lower inner wall of main body insulator 10.Then, when the bottom compartment 12 of capping main body insulator 10, the operator will be equipped with the fuse tube 40 that closes cover 60 and adorn after on the hook stick, this fuse tube 40 will be installed in the main body insulator 10 again.So, can and close cover 60 with fuse tube 40 and be installed in simultaneously on the main body insulator 10.Therefore, the airtight bolt under no longer need hanging with linking belt, thus can easily carry out the capping operation of the bottom compartment 12 of main body insulator 10.In addition because the bottom compartment of main body insulator 10 12 is closed cover 60 cappings, so electro-mechanical part can not expose, thereby the safety of becoming can suppress inner stained of main body insulator 10 simultaneously.
(2) will close cover 60 is embedded in the display barrel 48 that is packed in insulating cylinder 42 lower ends.Therefore, can be with the bottom compartment 12 of simple structure capping main body insulator 10.
(3) close cover 60 and possess resettlement section 63, this resettlement section 63 is accommodated and is exposed at the outside fuse lead-in wire 46 in insulating cylinder 42 lower ends.Therefore, owing to can easily accommodate fuse lead-in wire 46, so can be easily with closing the bottom that cover 60 is installed in insulating cylinder 42.
(4) carried out painted to closing cover 60.When fuse 44 fusing, it is outstanding to the below of lower cover 58 to close cover 60.So, closing cover 60 from main body insulator 10 when outstanding, can be easily with the fusing of visual confirmation fuse 44.
(the 2nd execution mode)
In the high-tension fuse of this execution mode, be with above-mentioned the 1st execution mode difference, omitted lower cover.Below, with the 1st execution mode difference be that the center describes.
As shown in Figure 3, the chimeric cover 60 that closes in the display barrel 48 of fuse tube 40, this closes the bottom compartment 12 of cover 60 capping main body insulators 10.Identical with the 1st execution mode, the cylindrical portion 61 of closing cover 60 is embedded in the display barrel 48.Close the resettlement section 63 of cover 60 and accommodating the fuses lead-in wire 46 that is exposed at display barrel 48 outsides.The flange part 62 that closes cover 60 is connected on the inwall 12a of bottom compartment 12 of main body insulator 10.
Through the execution mode of above explanation, can obtain the effect of (1)～(4) of the 1st execution mode.
In addition, above-mentioned execution mode can also suitably be out of shape according to following form and implements.
In the above-described embodiment, also can omit resettlement section 63.In this case, need the cylindrical portion of closing cover 60 61 be pressed into and be entrenched in the display barrel 48.
In the above-described embodiment, also can omit display barrel 48, and will close on the bottom that cover 60 directly is entrenched in insulating cylinder 42.
Though in the above-described embodiment to close cover 60 carried out painted, yet also can only carry out painted to the lower surface that closes cover 60.
Claims (4)
1. a high-tension fuse is used the fuse tube, is housed in the inside of main body insulator cylindraceous, and the upper end of this main body insulator is fixed with upper electrode, and lower side is fixed with lower electrode, and said high-tension fuse is characterised in that to possess with the fuse tube:
Insulating cylinder is fixed with the top contact of tubulose in the upper end;
The bottom contact runs through that said insulating cylinder being installed, and has the contact site of ring-type;
The parts of energizing are set between the lower end of said bottom contact and said insulating cylinder;
Fuse is installed in the said insulating cylinder, and this fuse is stretched by the said parts of energizing and is arranged between said top contact and the said bottom contact; And
Close cover, it is entrenched on the bottom of said insulating cylinder, and this closes the bottom capping of cover with said main body insulator,
The said outer peripheral face that closes cover is provided with flange part, and this flange part is connected on the lower inner wall of said main body insulator.
2. high-tension fuse according to claim 1 is used the fuse tube, it is characterized in that,
Possess the display barrel that is packed in said insulating cylinder lower end,
The said cover that closes is entrenched in the said display barrel, and this closes the bottom capping of cover with said main body insulator.
3. high-tension fuse according to claim 2 is used the fuse tube, it is characterized in that,
Saidly close the resettlement section that cover possesses the lead-in wire of accommodating said fuse.
4. use the fuse tube according to any described high-tension fuse in the claim 1～3, it is characterized in that,
The said cover that closes is used to show the fusing of said fuse by painted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205742175U CN202423191U (en) | 2011-12-23 | 2011-12-23 | Fuse tube for high-voltage fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205742175U CN202423191U (en) | 2011-12-23 | 2011-12-23 | Fuse tube for high-voltage fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202423191U true CN202423191U (en) | 2012-09-05 |
Family
ID=46747926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205742175U Expired - Fee Related CN202423191U (en) | 2011-12-23 | 2011-12-23 | Fuse tube for high-voltage fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202423191U (en) |
-
2011
- 2011-12-23 CN CN2011205742175U patent/CN202423191U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20151223 |
|
| EXPY | Termination of patent right or utility model |