CN2523012Y

CN2523012Y - Small-sized D.C. electromagnetic on-off device

Info

Publication number: CN2523012Y
Application number: CN 02228420
Authority: CN
Inventors: 黎斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-02-07
Filing date: 2002-02-07
Publication date: 2002-11-27
Anticipated expiration: 2012-02-07

Abstract

The utility model relates to a mini-type DC electromagnetic breaker, consisting of a normal-close contact 1, an insulation gasket 2, a nylon gasket 3, a retaining plate 4, an upper cover 5, a closing ring 6, a pagoda spring 7, a bakelite gasket 8, a coil 9, a coil sleeve 10, a casing 11, a connection bolt 12, an armature 15, a straight spring 16, a normal-open contact 17, a square contact-plate gasket 18, a big nylon gasket 19, an armature gasket 20 and a contact bridge 21. The utility model solves the defects, of present breakers, that a max breaking current can just reach 200-300 A; the breaking has always a short-time; the contact point is always a point-contacting; an adoption of a lever structure not only easily causes a wrong action but also has a small contact area and often causes an electric arc problem. The utility model is characterized in that the rated voltage is low; the breaking capability is high; the volume is small and the weight is light; the normal-close state can be restored after breaking. The utility model can be widely applied to communication, industrial automatic control equipments, vehicle-bone attached devices, household electric apparatuses and electric field of special industries.

Description

The small DC magnetic flux device that breaks

Technical field:

A kind of break-make device, the particularly a kind of small DC magnetic flux device that breaks belongs to the electromagnetic relay field.

Background technology:

Direct solenoid break-make device is a kind of contacting and the control device of disconnection of communication, industry automatic control equipment, vehicle-mounted attachment device, household electrical appliance and special industry electrical system that be widely used in, basic characteristics with relay and contactor all are to use the big electric current of little Current Control.At present, the maximum electric current of make-and-break of common direct solenoid break-make device all can only reach 200～300A, break-make all is a break-make in short-term, and contact all is a contact, the action of contact all is a lever-type structure, not only occur misoperation easily, and the contact area is less, easily produce electric arc, make contact-making surface generation carbon deposit and make the break-make device malfunctioning.

The utility model content:

The purpose of this utility model is to solve direct solenoid break-make device can only bear big electric current in short-term, and during low-voltage, make-break capacity is low, and when make-break capacity was high, then voltage was also high, and volume is bigger, and the contact contact area is little, easily produces the problem of electric arc.

The utility model is to solve the problems referred to above by following technical solution.

The disconnected device of this small DC magnetic flux is lacked 15, straight spring 16, normally open contact 17, square touch board pad 18, large nylon pad 19, gag bit pad 20, is touched bridge 21 and form by normally closed interlock 1, insulation cushion 2, nylon cushion 3, location-plate 4, loam cake 5, collar 6, pagoda spring 7, bakelite pad 8, coil 9, coil cover 10, shell 11, connection bolt 12, rank, it is characterized in that: the upper end of shell 11 is fixed with two normally closed interlocks 1 by loam cake 5 and nylon cushion 3, location-plate 4 is equipped with in the bottom of nylon cushion 3, and insulation cushion 2 is equipped with at the top of loam cake 5; Two normally open contacts 17 are equipped with in the both sides at shell 11 middle parts, and square touch board pad 18 and large nylon pad 19 are housed on the normally open contact 17; The other both sides at shell 11 middle parts are equipped with connection bolt 12 and holder 22 respectively, and connection bolt pad 13 and little nylon cushion 14 are housed on the connection bolt 12; One coil cover 10 is housed in the bottom of shell 11, in the coil cover 10 coil 9 is housed, an armature 15 is equipped with at the center of coil 9, and straight spring 16 is equipped with at the middle part of armature 15, top is equipped with one by gag bit pad 20 and bakelite pad 8 and is touched bridge 21, and a pagoda spring 7 is equipped with by collar 6 in the top of bakelite pad 8.

The utility model compared with prior art has following beneficial effect:

1. has rated voltage low (12V, 24V), make-break capacity height (rated current 500A);

2. volume is little, and is in light weight, full-closed structure;

3. after the outage, reset in normally off;

4. the contact contact area is big, and arc quenching effect is good.

Description of drawings:

Accompanying drawing 1 is the front view of the disconnected device of small DC magnetic flux;

Accompanying drawing 2 is the right view of the disconnected device of small DC magnetic flux.

Embodiment:

The disconnected device of this small DC magnetic flux is by normally closed interlock 1, insulation cushion 2, nylon cushion 3, location-plate 4, loam cake 5, collar 6, pagoda spring 7, bakelite pad 8, coil 9, coil cover 10, shell 11, connection bolt 12, rank lacks 15, straight spring 16, normally open contact 17, square touch board pad 18, large nylon pad 19, gag bit pad 20, touching bridge 21 forms, power supply inserts by connection bolt 12, produce magnetic field suction by 9 pairs of armature of coil in the coil cover 10 15, driving armature 15 moves down, because the reaction force of straight spring 16, by gag bit pad 20 and bakelite pad 8, make and touch bridge 21 and also move down, compressing straight spring 16 opens normally closed interlock 1, and normally open contact 17 is connected, make the major loop energising.After coil 9 outages, electromagnetic force disappears, and armature 15 makes and touches bridge 21 and normally closed interlock 1 connection under the effect of straight spring 16, makes after coil 9 outages, resets in normally off.

Claims

A kind of small DC magnetic flux device that breaks, it is lacked 15, straight spring 16, normally open contact 17, square touch board pad 18, large nylon pad 19, gag bit pad 20, is touched bridge 21 and form by normally closed interlock 1, insulation cushion 2, nylon cushion 3, location-plate 4, loam cake 5, collar 6, pagoda spring 7, bakelite pad 8, coil 9, coil cover 10, shell 11, connection bolt 12, rank, it is characterized in that: the upper end of shell 11 is fixed with two normally closed interlocks 1 by loam cake 5 and nylon cushion 3, location-plate 4 is equipped with in the bottom of nylon cushion 3, and insulation cushion 2 is equipped with at the top of loam cake 5; Two normally open contacts 17 are equipped with in the both sides at shell 11 middle parts, and square touch board pad 18 and large nylon pad 19 are housed on the normally open contact 17; The other both sides at shell 11 middle parts are equipped with connection bolt 12 and holder 22 respectively, and connection bolt pad 13 and little nylon cushion 14 are housed on the connection bolt 12; One coil cover 10 is housed in the bottom of shell 11, in the coil cover 10 coil 9 is housed, an armature 15 is equipped with at the center of coil 9, and straight spring 16 is equipped with at the middle part of armature 15, top is equipped with one by gag bit pad 20 and bakelite pad 8 and is touched bridge 21, and a pagoda spring 7 is equipped with by collar 6 in the top of bakelite pad 8.