CN2636405Y

CN2636405Y - High voltage fuse

Info

Publication number: CN2636405Y
Application number: CN 03269715
Authority: CN
Inventors: 孙立新; 孙新录; 金勇志
Original assignee: 孙新录
Priority date: 2003-07-23
Filing date: 2003-07-23
Publication date: 2004-08-25
Anticipated expiration: 2013-07-23

Abstract

The utility model discloses a high voltage fuse, which comprises an anti-fouling hood, an anti-fouling cap, an upper contact, a lower contact, an upper contact copper clamp, a lower contact clamp, an insulator, an arc extinguishing tube, a high voltage fuse element, a suspension and falling mark. The upper anti-fouling hood and the lower anti-fouling hood are fixed on the insulator via a bolt; the anti-fouling cap is fixed on the upper anti-fouling hood; the opening end of the upper and lower contact copper clamps are fixed together via a bolt nut with a spring; the upper end and lower end of the arc extinguishing tube are inserted by an upper contact and a lower contact and clamped tightly inside the upper and lower contact copper clamps; the lower contact copper clamp coordinates closely with the lower contact in column shape. The utility model has the advantages of excellent air permeability, rain and snow proof and excellent anti-fouling performance; double point arc extinguishing with outstanding efficiency; light weight and strong capability of resisting draught and bending. After the high voltage fuse is melt, the arc extinguishing tube can be inserted and clamped close at any direction, which brings much convenient for aloft work. Besides, as the upper and lower anti-fouling hoods are fixed on the insulator with excellent stability, the utility is not easy to loosen and is of high safety performance.

Description

High-tension fuse

The utility model belongs to a kind of high-tension fuse.

At present, in the ac high-voltage transmission of electricity, various fuses have appearred, high voltage drop-out type fuse cutout is wherein arranged, the outdoor fuse of high pressure, cluster parachute structure fuse etc., they respectively have advantage, and the arc extinguishing tubule is installed in the employing that has exhaust step by step additional on the button fuse member, solved the contradiction of cut-offfing large and small electric current, the employing cluster parachute structure that also has, it is strong to have antifouling ability, the advantage that insulation effect is good.But the wind resistance of these all fuses snow ability, the arc short-circuit problem in the operation happens occasionally, and when changing high voltage fuse, installing needs orientation, and the high-altitude is not easy to operate.

The utility model addresses the above problem exactly, provides a kind of wind resistance snow ability strong, two point arc extinguishing, high-tension fuse easy for installation when changing high voltage fuse.

For addressing the above problem, technical solution of the present utility model is: a kind of high-tension fuse, and it comprises upper and lower dirtproof cover, upper and lower contact point, upper and lower contact copper card, insulator, arc-extinguishing tube, high voltage fuse and outstanding drop marker; Upper and lower contact point is separately fixed at the two ends of arc-extinguishing tube; Arc-extinguishing tube is positioned at insulator, and high voltage fuse is housed in the arc-extinguishing tube, and high voltage fuse one end is fixed on the contact point, and the other end is provided with outstanding drop marker, hangs buttock line and is fixed on down on the contact point; The insulator center fixed has mounting bracket; It is characterized in that upper and lower dirtproof cover by being bolted on the insulator, is fixed with dirt-proof cap on the last dirtproof cover; One end of upper and lower contact copper card is fixed on upper and lower dirtproof cover side by the female pad of bolt, and its openend is fixed together by the female pad of the bolt of band spring; The arc-extinguishing tube top and bottom are inserted and are clamped in the upper and lower contact copper card by upper and lower contact point respectively, the bayonet socket that contacts the copper card down is cylindric, following contact point is and contacts cylindric that the copper card is complementary down, and following contact copper card is cylindricality with following contact point and closely cooperates.

Because the utility model adopted such scheme, top cover is sealed by dirt-proof cap, good permeability, and rain and snow, soil resistance are strong; Adopt the interpolation type structure, the two point arc extinguishing, arc extinction performance is good; In light weight, tension, bending resistance are strong; Upper and lower contact copper card openend of the present utility model is fixed together by the female pad of the bolt of band spring, behind high-voltage wire iron-melting fusing, arc-extinguishing tube is installed no matter where can both tighten to pegging graft, and work high above the ground is convenient; Upper and lower dirtproof cover is by being bolted on the insulator, and fixed effect is better, is difficult for loosening, safe.

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is an internal structure schematic diagram of the present utility model;

Fig. 2 is a structural representation of going up contact copper card in the utility model.

Fig. 3 is the structural representation that contacts the copper card in the utility model down.

As shown in Figure 1, present embodiment is by upper and lower dirtproof cover 2,12, dirt-proof cap 1, and upper and lower contact point 5,15, insulator 10, arc-extinguishing tube 9, high voltage fuse 8, outstanding drop marker 16 and the upper and lower copper card 4,11 that contacts are formed.Upper and lower dirtproof cover 2,12 is fixed on the insulator 10 by bolt 18, dirt-proof cap 1 is fixed on the dirtproof cover 2 by the female pad 19 of the bolt of band spring, one end of upper and lower contact copper card 4,11 is fixed on upper and lower dirtproof cover 2,12 sides by the female pad of bolt, its openend is fixed together by the female pad 3 of the bolt of band spring 20, as Fig. 2, shown in Figure 3; Last contact point 5 and following contact point 15 are separately fixed at the two ends of arc-extinguishing tube 9, arc-extinguishing tube 9 is positioned at insulator 10, its top and bottom are inserted and are clamped in the upper and lower contact copper card 4,11 by upper and lower contact point 5,15 respectively, under to contact copper card 11 bayonet sockets bigger than last contact copper card 4 bayonet sockets, its bayonet socket is cylindric, following contact point 15 is and contacts cylindric that copper card 11 is complementary down, and following contact copper card 11 is cylindricality with following contact point 15 and closely cooperates.High voltage fuse 8 is housed in the arc-extinguishing tube 9, and high voltage fuse 8 one ends are fixed on the contact point 5, and the other end is provided with big outstanding drop marker 16, hang buttock line 17 by being bolted to down on the contact point 15.Insulator 10 center fixed have mounting bracket 7.Outstanding drop marker 16 directly is fixed on the high voltage fuse 8.Upper and lower terminals are 6,14.

Claims

1, a kind of high-tension fuse, it comprises upper and lower dirtproof cover, upper and lower contact point, upper and lower contact copper card, insulator, arc-extinguishing tube, high voltage fuse and outstanding drop marker; Upper and lower contact point is separately fixed at the two ends of arc-extinguishing tube; Arc-extinguishing tube is positioned at insulator, and high voltage fuse is housed in the arc-extinguishing tube, and high voltage fuse one end is fixed on the contact point, and the other end is provided with outstanding drop marker, hangs buttock line and is fixed on down on the contact point; The insulator center fixed has mounting bracket; It is characterized in that upper and lower dirtproof cover by being bolted on the insulator, is fixed with dirt-proof cap on the last dirtproof cover; One end of upper and lower contact copper card is fixed on upper and lower dirtproof cover side by the female pad of bolt, and its openend is fixed together by the female pad of the bolt of band spring; The arc-extinguishing tube top and bottom are inserted and are clamped in the upper and lower contact copper card by upper and lower contact point respectively, the bayonet socket that contacts the copper card down is cylindric, following contact point is and contacts cylindric that the copper card is complementary down, and following contact copper card is cylindricality with following contact point and closely cooperates.

2, high-tension fuse according to claim 1 is characterized in that described outstanding drop marker (16), directly is fixed on the high voltage fuse (8).

3, high-tension fuse according to claim 1 is characterized in that described dirt-proof cap (1) is fixed on the dirtproof cover (2) by the female pad of bolt (19) of band spring.