CN2691036Y

CN2691036Y - Insert type fuse structure

Info

Publication number: CN2691036Y
Application number: CN 200420005555
Authority: CN
Inventors: 赵正保
Original assignee: BAOYU INDUSTRY Co Ltd
Current assignee: BAOYU INDUSTRY Co Ltd
Priority date: 2004-03-05
Filing date: 2004-03-05
Publication date: 2005-04-06
Anticipated expiration: 2014-03-05

Abstract

The utility model relates to an insert type fuse structure which comprises an upper cover plate, a casing, a conducting strip, a luminous display assembly, a fuse and a connecting wire. A storage chamber is arranged in the centre of the upper part of the casing. The conducting strip is connected with the fuse and the connecting wire is connected with the luminous display assembly, which are embedded in the storage chamber to form the insulation protection. A plug board which is arranged under the conducting strip can be plugged on a connecting socket board. When the fuse is not broken, the luminous display assembly does not brighten because the current on the connecting wire is too small. If the current is big, which generates high temperature and causes the fuse to be over load and not capable of bearing, the fuse is melted and broken, and the current of the luminous display assembly is enlarged to create a luminous display phenomenon, display and safe protection efficiency. A pair of L-shaped notches which are arranged at inner side of the upper part of the conducting strip makes the connecting wire completely closed on the L-shaped notch with thickness of the conducting strip to form a two-side contacted welding mode and sufficiently solve the problem that the existing spot welding mode is easy to oxygenize and strip after a long time.

Description

The pull-out fuse structure

Technical field

The utility model relates to a kind of pull-out fuse structure, is provided with a luminous display assembly in it, if after the fuse fusing fracture, luminous display assembly can be bright, lost effectiveness to demonstrate fuse, and can inform the user fully fast.

Background technology

See also the fuse structure of commonly using shown in Figure 1, its housing inserts, because of its conducting strip k, the relation of k1 mounting direction, and then the assembling mode design department is with conducting strip k, the interior outer side edges of k1 is made flat shape, and it is parallel with shell rim, put into the back and prop up the housing top, right in avoiding conducting strip k, k1 causes loosening and breaks away from pulling out the fuse joint chair, then at two conducting strip k, k1 respectively is provided with a perforation h, h1 uses high-temperature service again, makes the plastic casing blow at perforation h, in the h1, make conducting strip k, k1 is pulling out the difficult disengaging of fuse joint chair, secondly after blown fuse, electric current can't pass through, and causes some apparatus function to lose efficacy, the associated electrical part is damaged, and check comparatively difficulty of reason, it is whole disabling device must to be done again once inspection, the promptly time-consuming power that consumes again.

Summary of the invention

The purpose of this utility model provides a kind of pull-out fuse structure, is provided with a luminous display assembly in it, if after the fuse fusing fracture, luminous display assembly can be bright, lost effectiveness to demonstrate fuse, and can inform the user fully fast.

Above-mentioned purpose of the present utility model is achieved in that a kind of pull-out fuse structure, it is characterized in that:

One upper cover plate, these two ends respectively are provided with a holder, and a chamfering is respectively established in its inboard, and a V-type slotted eye is made on the top of conducting strip, and passes through the tight fixing cord of fixed head of conducting strip the top;

One housing, this housing top center inside is provided with a storing chamber, and conducting strip connects fuse and lead and connects a luminous display assembly and pack in it, and a holddown groove is respectively established in its inner both sides, upper end, and conducting strip is fixed, and respectively establishes a positioning rib in the both sides, below;

One conducting strip, the electric conducting material that is one of the forming, a chamfering is respectively established in the outer rim both sides in its top, respectively is provided with a fixed head and perforation at two conducting strips, below be provided with the joint chair plate;

One luminous display assembly, a pair of L type breach is established in inboard, conducting strip top, and the lead driving fit forms a two-sided welding that contacts with weld on the L of conducting strip thickness type breach.

The utility model is elaborated with instantiation below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is for commonly using three-dimensional combination figure;

Fig. 2 is a plane exploded view of the present utility model;

Fig. 3 is a three-dimensional combination figure of the present utility model;

Fig. 4 is a profile of the present utility model;

The stereogram that Fig. 5 does not fuse for the utility model fuse;

Fig. 6 is the stereogram after the utility model blown fuse;

Description of reference numerals: conducting strip k, k1; Perforation h, h1; Upper cover plate 1; Holder 11,110; Chamfering 12,120; Housing 2; Storing chamber 21; Holddown groove 22,220; Positioning rib 23,230; Conducting

strip

3,30; Chamfering 31,310; V-type slotted eye 32,320; Double L-shaped breach 33,330; Fixed head 34,340; Perforation 35,350; Joint chair plate 36; Luminous display assembly 4; Weld 41; Fuse 5;

Lead

6,60.

Embodiment

See also Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, the utility model provides a kind of pull-out fuse structure, comprises:

One upper cover plate 1, these two ends respectively are provided with a holder 11,110, a chamfering 12,120 is respectively established in its inboard, and a V-type slotted eye 32,320 is respectively made on the top of conducting

strip

3,30, and is at the fixed head 34 that enables abundant and conducting

strip

3,30 the tops that lead 6,60 is closely fixing;

One housing 2, these housing 2 top center inside are provided with a storing chamber 21, connect a luminous display assembly 4 and pack in it making conducting

strip

3,30 connect fuses 5 and

lead

6,60, a holddown groove 22,220 is respectively established in its inner both sides, upper end, pack into behind the housing 2 making conducting

strip

3,30, conducting

strip

3,30 is fixing, respectively establish a positioning rib 23,230 in the both sides, below;

One conducting

strip

3,30, the electric conducting material that is one of the forming, a chamfering 31,310 is respectively established in the outer rim both sides in its top, respectively be provided with a fixed head 34,340 and bore a hole 35,350 at two conducting

strips

3,30, for making housing 2 blows at conducting

strip

3,30 fixed heads 34,340 and bore a hole in 35,350, its below is a joint chair plate 36, in making the insertion joint chair; Again fuse 5 is connected to be bent downwardly mode;

One luminous display assembly 4, a pair of L type breach 33 is established in inboard, conducting strip 3 top, make the complete driving fit of lead 6 energy on the L type breach 33 of conducting strip 3 thickness, form a two-sided welding that contacts with weld 41, if during normal operating condition, electric current is bigger to fuse 5 flows through conducting strip 3, it is less to flow to luminous display assembly 4 flows along lead 6, therefore can be not shinny, after fuse 5 overload thereby fusing, the past luminous display assembly 4 of electric current meeting, and make it luminous, show that promptly this fuse 5 has lost the state of function.

As shown in Figure 6, a pair of L type breach 33,330 is established in inboard, conducting strip of the

present utility model

3,30 top, make the complete driving fit of

lead

6,60 energy on the L type breach 33,330 of conducting

strip

3,30 thickness, form the welding manner of a two-sided contact, can fully solve the spot welding mode of commonly using, the time peels off through easy oxidation long afterwards; In addition, a chamfering 12,120 is respectively established in two holders, 11,110 its inboards of upper cover plate 1, sliding suitable when importing luminous display assembly 4, imported lead at 6,60 o'clock, two holders 11,110 of upper cover plate 1 can be fully and the fixed head 34,340 of conducting

strip

3,30 the

tops lead

6,60 is closely fixing, to reach the most perfect double protection state;

A saturating fully sky is established in these housing 2 tops, mounting direction is packed into by the top behind the holddown groove 22,220, again the top of two conducting

strips

3,30 is made a V-type slotted eye 32,320, a lead angle 31,310 is respectively established in outer rim both sides in it, respectively be provided with a fixed head 34,340 and bore a hole 35,350 at two conducting

strips

3,30, use high-temperature service again, make the plastic casing blow at conducting

strip

3,30, fixed head 34,340 and bore a hole in 35,350, so that conducting strip 3 is difficult for breaking away from when pulling away this joint chair plate 36;

In addition, the utility model can be with fuse 5 designs to be bent downwardly shape, for making to increase the spatial accommodation of luminous display assembly 4.

Below the utility model and conventional art are compared:

Conventional art

1, fuse hinders when pulling away for some reason, easily causes conducting strip to come off.

2, luminous display assembly is because of the spot welding mode, and for a long time weldering easily causes oxidative phenomena.

3, during fault, difficult because detecting, i.e. time and effort consuming.

4, the easy loss of circuit line segment.

The utility model

1, fuse structure is fixing lower in dual welding, is difficult for unpluging and peels off.

2, luminous display assembly forms the integraty structure with the solid welding of driving fit mode.

3, during fault, luminescence component can show reports function.

4, the circuitry lines protection circuit hinders the shortening time that is able to of reporting for some reason, easily maintenance.

Claims

1, a kind of pull-out fuse structure is characterized in that:

2, pull-out fuse structure as claimed in claim 1 is characterized in that fuse is bent downwardly.

3, pull-out fuse structure as claimed in claim 1 is characterized in that, a pair of L type breach is established in this inboard, conducting strip top, and the lead driving fit forms a two-sided Contact welding and connects on the L of conducting strip thickness type breach.

4, pull-out fuse structure as claimed in claim 1 is characterized in that, a chamfering is respectively established in its inboard of two holders of this upper cover plate.