CN205319116U

CN205319116U - Electromagnetic blow - fuse

Info

Publication number: CN205319116U
Application number: CN201521131044.4U
Authority: CN
Inventors: 赵希华; 袁明; 高建飞
Original assignee: XI'AN SUYUAN ELECTRIC APPLIANCE CO Ltd
Current assignee: XI'AN SUYUAN ELECTRIC APPLIANCE CO Ltd
Priority date: 2015-12-30
Filing date: 2015-12-30
Publication date: 2016-06-15
Anticipated expiration: 2025-12-30

Abstract

The utility model discloses an electromagnetic blow - fuse, including last casing, down the casing, fix at this shang casing and the fuse -element between the casing down, goes up the casing, fixed one goes up a permanent magnet and an upper permanent magnet respectively on the surface of casing down, and the polarity the that upward permanent magnet is relative with upper permanent magnet is opposite, upward the casing is semi -circular ceramic cylinder with lower casing, is in the same place through lug on marginal relatively and recess cooperation lock each other, the last casing in edge of fuse -element and the axial installation of casing down, and the both ends of this fuse -element respectively with the both ends of placing casing and time casing in outside the current conducting plate be connected, go up the casing, down the casing, go up permanent magnet, upper permanent magnet and fuse -element and all install in a circular ceramic pipe, and in this circular ceramic pipe in go up the casing, down the casing, go up the permanent magnet and outer packing of upper permanent magnet has the quartz sand. In the time of through the quartz sand current -limiting, adopt the electromagnetic force to push away the electric arc that produces from arc generator spare department rapidly to shorten quenching time, promoted the security of equipment.

Description

A kind of electromagnetic blow-fuse

Technical field

This utility model relates to a kind of current supply circuit protection equipment, specifically a kind of electromagnetic blow-fuse.

Background technology

Existing fuse is of a great variety, but all there is a common phenomenon, that is, when melt fuses all can generation electric arc in various degree, what have even also can produce the stronger sound.

If the electric arc produced exists the time longer will there are two subsidiary risks, causing that accident occurs, for this, within the shortest time, arc extinguishing is extremely important.

And at present the mode of arc extinguishing is usually the effect arc extinguishing utilizing electromagnetic force, or realize weakening of electric arc and the fastest arc extinguishing by current limliting.

No matter adopt which kind of principle arc extinguishing above-mentioned, be all single employing at present, not yet adopt simultaneously, it does not have the effective advantage playing above two mode.

Utility model content

The purpose of this utility model is in that to provide a kind of electromagnetic blow-fuse, and fast arc extinction while current limliting, to obtain arc quenching effect faster.

For reaching above-mentioned purpose, this utility model provides a kind of electromagnetic blow-fuse, including upper shell, lower house, the melt that is fixed between this upper shell and lower house, it is characterized in that, described upper shell, lower house outer surface on fix on one permanent magnet and once permanent magnet and the opposite polarity that on this, permanent magnet is relative with described lower permanent magnet respectively;

Described upper shell and lower house are semicircle porcelain tube, snap together each other by the projection in opposite edges and groove fit;

Axially mounted along described upper shell and lower house of described melt, and the two ends of this melt respectively with the two ends being placed in described upper shell and lower house outside conductive plate be connected;

Described upper shell, lower house, upper permanent magnet, lower permanent magnet and melt are installed in a round ceramic pipe, and are filled with quartz sand outside described upper shell, lower house, upper permanent magnet and lower permanent magnet in this round ceramic pipe.

Above-mentioned melt cuts silver strip for becoming.

Above-mentioned melt axially offers multiple change cut-out hole along it.

The two ends of above-mentioned upper shell and lower house are all riveted on described conductive plate.

The beneficial effects of the utility model are: by quartz sand current limliting while, adopt electromagnetic force that the electric arc of generation pushes away rapidly arc generator part place, thus farthest improve the effect of arc extinguishing, shortening the quenching time, improving the safety of equipment.

Accompanying drawing explanation

Fig. 1 is electromagnetic blow-fuse structure schematic diagram.

Description of reference numerals: 1, upper shell; 2, lower house; 3, melt; 4, upper permanent magnet; 5, lower permanent magnet; 6, round ceramic pipe; 7, conductive plate.

Detailed description of the invention

Fig. 1 show a kind of electromagnetic blow-fuse structure schematic diagram that the present embodiment provides, its right half part section view is shown, this electromagnetic blow-fuse visible includes upper shell 1, lower house 2, it is fixed on the melt 3 between this upper shell 1 and lower house 2, its maximum improvement place is in that, upper shell 1, the outer surface of lower house 2 is fixed on one permanent magnet 4 and once permanent magnet 5 respectively, and the opposite polarity that on this, permanent magnet 4 is relative with lower permanent magnet 5, thus melt 3 is being placed in electromagnetic field, when there is electric arc, electric arc is pushed away the position producing electric arc and melt 3 by the power by upper permanent magnet 4 and the electromagnetic field of lower permanent magnet 5 generation, thus fast arc extinction, and in order to reduce the energy of the electric arc of generation, it is beneficial to electromagnetic force arc extinguishing faster, the present embodiment is by housing 1, lower house 2, upper permanent magnet 4, lower permanent magnet 5 and melt 3 are installed in a round ceramic pipe 6, and in upper shell 1 in this round ceramic pipe 6, lower house 2, it is filled with quartz sand outside upper permanent magnet 4 and lower permanent magnet 5, by quartz sand current limliting, simultaneously, sound impact to external world can also be weakened by round ceramic pipe 6.

The upper shell 1 adopted in the present embodiment and lower house 2 are semicircle porcelain tube, snap together each other by the projection in opposite edges and groove fit; Axially mounted along upper shell 1 and lower house 2 of melt 3, and the two ends of this melt 3 respectively with the two ends being placed in upper shell 1 and lower house 2 outside conductive plate 7 be connected, it is simple to energising is installed.

And the melt 3 wherein adopted cuts silver strip for becoming, and axially offer multiple change cut-out hole along it.

The two ends of upper shell 1 and lower house 2 are all riveted on conductive plate, strengthen the stability installed.

To sum up, it is not difficult to find out, this kind of electromagnetic blow-fuse, while by quartz sand current limliting, adopt electromagnetic force that the electric arc of generation pushes away rapidly arc generator part place, thus farthest improve the effect of arc extinguishing, shorten the quenching time, improve the safety of equipment.

Claims

1. an electromagnetic blow-fuse, including upper shell (1), lower house (2), the melt (3) that is fixed between this upper shell (1) and lower house (2), it is characterized in that: described upper shell (1), lower house (2) outer surface on fix permanent magnet on (4) and once permanent magnet (5) and the opposite polarity that on this, permanent magnet (4) is relative with described lower permanent magnet (5) respectively;

Described upper shell (1) and lower house (2) are semicircle porcelain tube, snap together each other by the projection in opposite edges and groove fit;

Axially mounted along described upper shell (1) and lower house (2) of described melt (3), and the two ends of this melt (3) respectively with the two ends being placed in described upper shell (1) and lower house (2) outside conductive plate be connected;

Described upper shell (1), lower house (2), upper permanent magnet (4), lower permanent magnet (5) and melt (3) are installed in a round ceramic pipe (6), and are filled with quartz sand outside described upper shell (1), lower house (2), upper permanent magnet (4) and lower permanent magnet (5) in this round ceramic pipe (6).

2. electromagnetic blow-fuse as claimed in claim 1, it is characterised in that: described melt (3) cuts silver strip for becoming.

3. electromagnetic blow-fuse as claimed in claim 1, it is characterised in that: described melt (3) axially offers multiple change cut-out hole along it.

4. electromagnetic blow-fuse as claimed in claim 1, it is characterised in that: the two ends of described upper shell (1) and lower house (2) are all riveted on described conductive plate.