CN210325679U - Novel contact fuse - Google Patents

Abstract

The utility model relates to a novel contact fuse, including fusion tube and contact, the contact is located the both ends of fusion tube, the contact is type C type structure, the fusion tube includes body, fuse-element and quartz sand, the contact piece is connected in the spot welding of fuse-element both ends, contact, body and contact piece pass through screwed connection fixed, set up the cavity in the body, the fuse-element sets up in this cavity and the both ends of fuse-element connect the contact, the quartz sand is filled in the surplus space of cavity. The utility model discloses set up the contact into C type structure, increased the area of contact when fuse is connected with the copper bar, effectively reduced the temperature rise of fuse to reduce power loss, improve the performance of fuse greatly, and improved the factor of safety of fuse.

Description

Novel contact fuse

Technical Field

The utility model relates to a fuse field, concretely relates to novel contact fuse.

Background

Current fuse generally comprises fusion tube and contact on the market, and the contact generally is a slice formula structure, and contact welded connection is at the fusion tube both ends, and this kind of structure fuse is when being connected with the copper bar erection, and area of contact is little, easily generates heat, leads to the fuse temperature rise than higher.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel contact fuse for fuse among the solution prior art leads to the higher problem of temperature rise with copper bar area of contact for a short time.

The utility model provides a novel contact fuse, including fusion tube and contact, the contact is located the both ends of fusion tube, the contact is type C type structure, the fusion tube includes body, fuse-element and quartz sand, the contact piece is connected in the spot welding of fuse-element both ends, it is fixed that contact, body and contact piece pass through screwed connection, set up the cavity in the body, the fuse-element sets up in this cavity and the both ends of fuse-element are connected the contact, quartz sand is filled in the surplus space of cavity.

Further, the tube body is a porcelain tube.

Adopt above-mentioned the utility model discloses technical scheme's beneficial effect is:

the utility model discloses set up the contact into C type structure, increased the area of contact when fuse is connected with the copper bar, effectively reduced the temperature rise of fuse to reduce power loss, improve the performance of fuse greatly, and improved the factor of safety of fuse.

Drawings

FIG. 1 is a schematic view of the fuse structure of the present invention;

FIG. 2 is a cross-sectional view of the fuse of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1-fusion tube, 2-contact, 11-tube body, 12-melt, 13-quartz sand and 14-contact piece.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

As shown in fig. 1-2, the utility model provides a novel contact fuse, including fusion tube 1 and contact 2, screw fixed mounting contact 2 is passed through at fusion tube 1 both ends, contact 2 is type C structure, fusion tube 1 includes body 11, fuse-element 12 and quartz sand 13, contact piece 14 is connected in 12 both ends spot welding of fuse-element, contact 2, body 11 and contact piece 14 pass through screwed connection fixed, set up the cavity in the body 11, fuse-element 12 sets up in this cavity and the both ends of fuse-element 12 connect contact 2, quartz sand 13 is filled in the surplus space of cavity. The contact 2 of this fuse is connected with the copper bar, and when the electric current exceeded a definite value, fuse-element 12 self-heating in the fusion tube 1 melts, makes the circuit disconnection, in this embodiment, sets up contact 2 in type C structure, has increased the area of contact 2 with the copper bar, and the temperature rise of effective control fuse improves the security.

The tube body 11 is a porcelain tube.

To sum up, the utility model discloses set up the contact into C type structure, increased the area of contact when fuse is connected with the copper bar, effectively reduced the temperature rise of fuse to reduce power loss, improve the performance of fuse greatly, and improved the factor of safety of fuse.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (2)

1. The utility model provides a novel contact fuse, its characterized in that, includes fusion tube and contact, the contact is located the both ends of fusion tube, the contact is type C structure, the fusion tube includes body, fuse-element and quartz sand, the contact piece is connected in the spot welding of fuse-element both ends, contact, body and contact piece pass through screwed connection fixed, set up the cavity in the body, the fuse-element sets up in this cavity and the both ends of fuse-element connect the contact, the quartz sand is filled in the surplus space of cavity.

2. The contact fuse of claim 1, wherein the body is a porcelain tube.

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