CN200962393Y

CN200962393Y - Dual stabilized permanent magnetic operation structure controlled by the dual coil

Info

Publication number: CN200962393Y
Application number: CN 200620120325
Authority: CN
Inventors: 蒋锡骅; 李进平
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-06-19
Filing date: 2006-06-19
Publication date: 2007-10-17
Anticipated expiration: 2016-06-19

Abstract

The utility model relates to a bistable permanent-magnet controlling mechanism controlled by a double coil, is characterized in that the permanent-magnet controlling mechanism comprises a full brake coil, an opening brake coil, a moveable iron core, a static iron core and a permanent magnet, the closing and opening brake coils are fixed to the left and right sides in the static iron core, the permanent magnet is provided in the center, the moveable iron core permeates on the central axis, a spindle nose is arranged at the closing and opening brake coils, the spindle nose point divides the coil into two parts that the ratio of the number of windings is 3:1 to 1:3, and the opening and closing coil spindle noses, the closing and opening brake coil threads are respectively concatenated with the electrical source. The utility model has the advantages of peculiar and novel structure, perfect and credible performance, few accessories, compact bulk, small electrical source capacity, small dissipating energy and low costs, is the new product of the new generation double coil steady state permanent-magnet controlling mechanism, and is widely used in the medium-low-voltage vacuum switch.

Description

The bi-stable permanent magnetism operating mechanism of twin coil control

Technical field

The utility model relates to the mesolow vacuum switch field in the power industry, particularly relates to the bi-stable permanent magnetism operating mechanism of the twin coil control of mesolow vacuum switch.

Background technology

At present, being used for mesolow Magnetic Actuator for Vacuum Circuit Breaker mechanism has the conventional springs operating mechanism, and this operating mechanism amount of parts is many, the cost height, and the characteristic instability, reliability can not satisfy the requirement of growing vacuum switch.Permanent-magnet manipulating mechanism has appearred in recent years, its part sum is than the low order of magnitude of spring operating mechanism, and bi-stable permanent magnetism operating mechanism wherein is to occur the earliest in the permanent-magnet manipulating mechanism, the kind that technology is the most ripe, but the combined floodgate of this operating mechanism of prior art or separating brake all are the unicoil operations, the beginning of operation, moving iron core all is on the position that the powerful magnetic adhesion that produced by permanent magnet is pull-in on out or closes, therefore need very powerful to the power supply that divides or the zygonema circle is powered, consume electric power, coil itself also requires the electric and mechanical property of reinforcement, and that does is thick.

The utility model content

The purpose of this utility model is to overcome the deficiency of above-mentioned prior art, the inventor is through the developmental research and the production practices of long-term mesolow vacuum switch, and the investigation that the market demand is carried out, exploitation provides a kind of stable and reliable for performance, the bi-stable permanent magnetism operating mechanism of the twin coil control that cost is low, light and handy.

The bi-stable permanent magnetism operating mechanism of the twin coil control that the utility model provides comprises coil, moving iron core, static iron core, permanent magnet.It is characterized in that closing coil and switching winding are in respectively on the permanent magnet central axis, be fixed in the static iron core about two.Permanent magnet is located between closing coil and the switching winding, and moving iron core is on the central axis of static iron core, closing coil, switching winding.The tapping point that switching winding and closing coil all are provided with tap, switching winding and closing coil tap is 3: 1 to 1: 3 with the ratio of the coil number of turn divided into two parts, be preferably 1: 1 to 1: 2, the part number of turn of the part number of turn of switching winding and whole numbers of turn of closing coil or closing coil and the whole numbers of turn of switching winding and power series, energising are finished and are closed a floodgate or sub-switching operation.

In the bi-stable permanent magnetism operating mechanism of the twin coil control that provides according to the utility model, form closed magnetic circuit by moving iron core-permanent magnet-static iron core-move iron core, moving iron core can move as two-way linear along axis in static iron core, promptly up and down or left and right sides rectilinear motion.When closing a floodgate, whole and the electric current serial connection of the part of switching winding and closing coil communicates, the access part of switching winding produces the magnetic adhesion weakened field that permanent magnetism is produced after energising, form " release ", closing coil then produces magnetic field pulling iron core, finishes closing operation (Fig. 2) jointly.When separating brake, whole and the electric current of the part of closing coil and switching winding is connected in series, and closing coil inserts when part is switched on can weaken the permanent magnetism magnetic adhesion, forms " release ", it is unshakable in one's determination to closing position that switching winding then produces the magnetic field pulling, finishes sub-switching operation (Fig. 3) jointly.

The characteristics of the bi-stable permanent magnetism operating mechanism of the twin coil control that the utility model provides are that structure is unique novel, excellent performance is reliable, the part number is few, light and handy, can significantly lower power supply capacity, it is little to consume energy, cost is low, be twin coil bi-stable permanent magnetism operating mechanism new product of new generation, can be widely used in the mesolow vacuum switch supporting in.

Description of drawings

Fig. 1 is the structural representation of twin coil control bi-stable permanent magnetism operating mechanism.

Fig. 2 is half combined floodgate structural representation of twin coil control bi-stable permanent magnetism operating mechanism right side.

Half separating brake structural representation of Fig. 3 twin coil control bi-stable permanent magnetism operating mechanism right side.

Embodiment

The utility model further specifies the utility model in conjunction with the accompanying drawings with following specific embodiments, but protection range of the present utility model is not limited to following specific embodiments.

The twin coil control bi-stable permanent magnetism operating mechanism that the utility model provides comprises closing coil 1, switching winding 2, moving iron core 3, static iron core 4, permanent magnet 5, combined floodgate and switching winding are separately fixed at the left and right sides in the static iron core, permanent magnet is located in the middle of its two coil, moving iron core runs through on central axis, can in static iron core, move as two-way linear along axis, form closed magnetic circuit by moving iron core-permanent magnet-static iron core-moving iron core, on switching winding and closing coil, be provided with spindle nose 6, its spindle nose point is positioned at the number of turn 1/3 place of two coils, the spindle nose of long brake cable circle is connected in series with electric current with closing coil the end of a thread, constitute operating mechanism, when closing a floodgate, whole and the electric current serial connection of the part of switching winding and closing coil communicates, because inserting part energising back, the switching winding electric current weakens the magnetic adhesion that produces by permanent magnetism, form " release ", closing coil moves iron core and is pulled to closing position, finishes the closing operation (see figure 2) jointly.When separating brake, its closing coil and switching winding effect are exchanged mutually, become the sub-switching operation (see figure 3).

Claims

1. the bi-stable permanent magnetism operating mechanism of twin coil control, comprise coil, moving iron core, static iron core, permanent magnet, it is characterized in that closing coil (1), switching winding (2), be separately fixed at the left and right sides in the static iron core (3), permanent magnet (4) is located between closing coil and the switching winding, moving iron core (5) is on static iron core, closing coil, switching winding, permanent magnet central axis, switching winding and closing coil all are provided with tap (6), and the tapping point of switching winding and closing coil tap is 3: 1 to 1: 3 with the ratio of each coil number of turn divided into two parts; The tap of the spindle nose of switching winding and closing coil the end of a thread or closing coil and switching winding the end of a thread each and power series.

2. the bi-stable permanent magnetism operating mechanism of controlling according to the twin coil of claim 1 is characterized in that the tapping point of described switching winding and closing coil tap is 1: 1 to 1: 2 with each coil turn ratio divided into two parts.