CN201171032Y

CN201171032Y - Resistance microfuse

Info

Publication number: CN201171032Y
Application number: CNU2008200053653U
Authority: CN
Inventors: 谢德贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-13
Filing date: 2008-03-13
Publication date: 2008-12-24
Anticipated expiration: 2018-03-13

Abstract

The utility model relates to a resistance type micro fuse, which comprises a tin solder (2), a fuse wire (3), an explosion stack (5) with a hole in the center, two end caps (4) with holes in the centers of the bottom parts, and two outer caps (1). The inner surfaces of the both end caps are respectively matched and connected with the both ends of the outer surface of the explosion stack (5), the outer surfaces of the both end caps are respectively matched and connected with the inner surfaces of the both outer caps (1), the fuse wire (3) is arranged in the explosion stack (5), and lead wires on the outer caps (1) are electrically connected with the fuse wire (3) through the tin solder (2) on the end caps (4). The resistance type micro fuse has the advantages that the production efficiency is high, the production efficiency is high, the performance is stable, the defective fraction is low, the voltage endurance capability is high, the break force is high, and the tube body can not blast and sputter when short circuit happens in the circuit. The resistance type micro fuse can be applied to the life and the industry.

Description

The resistance-type microfuze

Technical field

The utility model relates to a kind of fuse, mainly is a kind of resistance-type microfuze.

Background technology

At present, the composition of known resistance-type microfuze is by the pre-tin of going up in the leaded little copper cup of two rivetings, wears a fuse again in a hollow pipe, then both diagonal angles is welded, at last bread heat-shrinkable T bush lettering or bag epoxy resin lettering outside.This kind product receives praises from customers because of volume is little, but since this kind product extremely small cause production operation loaded down with trivial details, cause production efficient low; And also there is the fraction defective height in this product, raises one's hat easily, when fuse during in the welding of pipe inner opposite angle fuse easily contact pipe shaft, cause the properties of product instability, withstand voltage low, disjunction power is low and when fuse in circuit during short circuit body understand the defective that explosion is splashed.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of production efficiency height, stable performance, fraction defective resistance-type microfuze low, that body can explosion splash during short circuit in circuit.

The technical scheme that its technical problem that solves the utility model adopts is: the resistance-type microfuze comprises scolding tin, fuse, porose porose end cap, the outer cap of explosion stack, bottom centre in center; The inner surface of two end caps is connected with the two ends coupling of the outer surface of explosion stack respectively, and the outer surface of two end caps mates with the inner surface of two outer caps respectively and is connected, and fuse is arranged in the explosion stack, and the lead-in wire on the outer cap is electrically connected by the scolding tin on the end cap with fuse.

Described fuse is arranged at the center of explosion stack.

Described explosion stack is explosion-proof earthenware.

Described explosion stack is provided with high temperature resistant epoxy resin springy with the outer surface that outer cap is connected formation mutually.

The beneficial effects of the utility model are,

1. because this product structure is simple, need not adopt during production, so can semi-automation produce this production efficient height to welded corner joint.

2. because fuse is arranged at the center of explosion stack, can contact pipe shaft and make that these properties of product are stable, fraction defective is low.

3. owing to adopted explosion-proof earthenware, body can not splash in explosion when making in circuit short circuit.

4. be provided with high temperature resistant epoxy resin springy owing to this product external surfaces, thereby made the withstand voltage height of product, disjunction power height.

Description of drawings

Fig. 1 is a view sub-anatomy of the present utility model;

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

1. outer caps among the figure, 11. lead-in wires, 2. scolding tin, 3. fuse, 4. end cap, 5. explosion-proof earthenware, 6. epoxy resin.

Embodiment

As shown in Figure 1, the utility model comprises scolding tin 2, fuse 3, porose porose end cap 4, the outer cap 1 of explosion-proof earthenware 5, bottom centre in center.

As shown in Figure 2, fuse 3 is arranged at the center of explosion-proof earthenware 5, the inner surface of end cap 4 is connected with the outer surface coupling of explosion-proof earthenware 5, and the outer surface of end cap 4 is connected with the inner surface coupling of outer cap 1, and the lead-in wire 11 on the outer cap 1 is electrically connected by the scolding tin on the end cap 42 with fuse 3; The outer surface of entire product is provided with high temperature resistant epoxy resin springy 6.

Process principle of the present utility model is: produce 4 two of the porose metal end caps of a kind of bottom centre earlier, 1 two on the outer cap of 5 one of explosion-proof earthenwares that a kind of center is porose and metal, explosion-proof earthenware 5 is to cooperate the size of end cap 4 to manufacture and design, then with extruder with the two ends of two porose end cap 4 extruded sleeves at explosion-proof earthenware 5, forming a center has the through hole two ends that the semi-finished product of end cap 4 are arranged, because be the machine butt joint, so efficient is very high, scrappage is low; Because end cap 4 is to closely cooperate with cooperating of explosion stack 5, end cap 4 can not separate with explosion stack 5 again, unless explosion stack 5 break, and owing to pipe fitting is an explosion stack 5, thus when fuse in circuit during short circuit body can explosion not splash.

There are the through hole two ends to have the semi-finished product of end cap 4 to be poured on the bakelite of an A4 paper size that is evenly distributed with " V " word groove at the center, one shake gently, semi-finished product will join end to end one by one and form a lot of through hole, the length that the tiny minute hand of putting on the required fuse 3 of the corresponding electric current of production passes on " V " letter stencil is ganged up the hole, so just the center there is the semi-finished product string that there is an end cap 4 at the through hole two ends on fuse 3, then they are entangled in an orderly manner wide and a semi-finished product length slightly on the saw blade of long 1mm, when twining and be with tight fuse 3, and then be welded on the end cap 4 with the fuse 3 that flatiron and scolding tin 2 will pass body and end cap 4 centre bores.Fuse 3 has formed the semi-finished product that fuse 3 is arranged with regard to the center that is welded in explosion stack 5 of the center heart like this, this shows that the utility model production operation is easy, and efficient is very high, and scrappage is low, and fuse 3 can not contact pipe shaft, stable performance yet.

To the semi-finished product of fuse 3 are arranged, in next process two end caps 4 tighten the cover two outside cap 1, since outer cap 1 and end cap 4 be closely cooperate lead-in wire 11 and scolding tin 2 on design and the outer cap 1 contact and go between 11 own be exactly parts on the outer cap 1, take off the lead-in wire 11 that does not take off with regard to having connected like this to this mini-insurance pipe.Because be to adopt machine to be press-fitted outer cap 1, efficient is very high, scrappage is low.So just formed and be with lead-in wire 11 that the semi-finished product of fuse 3 are arranged.There is the semi-finished product lettering of fuse 3 can satisfy the low disjunction application scenario of forcing down in this band lead-in wire 11.

In order to satisfy high pressure high breaking application scenario, and some can produce direct short-circuit and require explosion-proof occasion, have the semi-finished product of fuse 3 to be coated with equably on every side in above band lead-in wire again and be covered with a kind of high temperature resistant epoxy resin 6 springy, lettering detects braid then.

Claims

1. the resistance-type microfuze comprises scolding tin (2), fuse (3), it is characterized in that, also comprises the porose explosion stack in center (5), porose end cap (4), the outer cap (1) of bottom centre; The inner surface of two end caps (4) is connected with the two ends coupling of the outer surface of explosion stack (5) respectively, the outer surface of two end caps (4) is connected with the inner surface coupling of two outer caps (1) respectively, fuse (3) is arranged in the explosion stack (5), and the lead-in wire (11) on the outer cap (1) is electrically connected by the scolding tin (2) on the end cap (4) with fuse (3).

2. according to the described resistance-type microfuze of claim 1, it is characterized in that described fuse (3) is arranged at the center of explosion stack (5).

3. according to the described resistance-type microfuze of claim 1, it is characterized in that described explosion stack (5) is explosion-proof earthenware.

4. according to the described resistance-type microfuze of claim 1, it is characterized in that described explosion stack (5) is provided with high temperature resistant epoxy resin springy (6) with the outer surface that outer cap (1) is connected mutually.