CN201383467Y

CN201383467Y - Monostable and monocoil permanent magnetic mechanism

Info

Publication number: CN201383467Y
Application number: CN200920031954U
Authority: CN
Inventors: 马彦利
Original assignee: SHANXI ZHONGHENG ELECTRIC CO Ltd
Current assignee: SHANXI ZHONGHENG ELECTRIC CO Ltd
Priority date: 2009-02-19
Filing date: 2009-02-19
Publication date: 2010-01-13
Anticipated expiration: 2019-02-19

Abstract

The utility model discloses a monostable and monocoil permanent magnetic mechanism used for a high-voltage vacuum contactor, which comprises a shaft, a contactor framework, a rear plate, a permanent magnet, a fixed core outer ring, a fixed core inner ring, a coil, a dust cover, a coil framework, a moving core, a spring, a connecting rod and a contactor armature. The fixed core inner ring is fixed on the rear plate through bolts; the coil framework is stuck to the outer wall of the fixed core inner ring; the coil is mounted in the coil framework; the permanent magnet is clung to the rear plate and mounted between the fixed core inner ring and the fixed core outer ring; the dust cover is covered on the outer wall of the part where the fixed core outer ring is connected with the moving core; the two ends of the spring are fixed on the contactor framework and the contactor armature respectively; and one end of the connecting rod is fixed on the moving core with a screw rod, and the other end is connected on the contactor armature through a shaft pin. The utility model has the advantages of simple structure, high security and reliability, power saving, no noise and long service life.

Description

Monostable unicoil permanent magnet mechanism

Technical field:

The utility model relates to a kind of monostable unicoil permanent magnet mechanism that is used for vacuum contactor.

Background technology:

At present, the high-pressure vacuum contactor operating mechanism adopts electromagnetic type more, and this type contactor has the deficiency that power consumption is many, noise is big, contact burns easily, and useful life is low.

The utility model content:

In order to overcome the problems that the electromagnetic type high-pressure vacuum contactor exists, the utility model provides the monostable unicoil permanent-magnet manipulating mechanism of a kind of electromagnetism adhesive, permanent magnetism maintenance and spring separating brake.

The technical scheme that the utility model adopted is: it is made up of axle, contactor framework, back plate, permanent magnet, fixed core outer ring, fixed core inner ring, coil, dust cover, coil rack, moving iron core, spring, connecting rod, contactor armature.The fixed core inner ring is by being bolted on the plate of back, coil rack is attached to the outer wall of fixed core inner ring, coil is loaded in the coil rack, permanent magnet is close to the back plate and is loaded in the middle of fixed core inner ring and the fixed core outer ring, dust cover is enclosed within the outer wall of fixed core outer ring and moving iron core joining part, spring two is separately fixed on contactor framework and the contactor armature, and one of connecting rod is fixed on the moving iron core with screw rod, and the other end is connected on the contactor armature by pivot pin.In the practice, the moving iron core of permanent magnet mechanism separates with fixed core, when the logical forward DC220V pulse voltage of coil, the elastic force that the magnetic force that the magnetic field superposition that magnetic field that coil produces and permanent magnet produce produces overcomes spring is pull-in on the fixed core iron core, and connecting rod pulling contactor armature closes a floodgate contactor.When the logical reverse DC220V pulse voltage of coil, spring overcomes magnetic field force, flicks moving iron core, and contactor armature moves backward, the contactor separating brake.

The beneficial effects of the utility model are, it is used for vacuum contactor can realize that electromagnetism adhesive, permanent magnetism keep and the spring separating brake, and simple in structure, economize on electricity, noiseless, life-span are long.Really accomplished safe and reliable, non-maintaining.

Below in conjunction with drawings and Examples the utility model is further specified.

Description of drawings:

Fig. 1 is monostable single coil structure figure.

Among the figure, 1. spool, 2. contactor framework, 3. back plate, 4. permanent magnet, 5. fixed core outer ring, 6. fixed core inner ring, 7 coils, 8. dust cover, 9. coil rack, 10. moving iron core, 11. springs, 12. connecting rods, 13. contactor armature.

Embodiment:

Fig. 1 has shown the overall structure figure of present embodiment.It is made up of axle 1, contactor framework 2, back plate 3, permanent magnet 4, fixed core outer ring 5, fixed core inner ring 6, coil 7, dust cover 8, coil rack 9, moving iron core 10, spring 11, connecting rod 12, contactor armature 13.In the practice, the moving iron core 10 of permanent magnet mechanism was opened with fixed core in 5,6 minutes, when coil 7 logical forward DC220V pulse voltages, the elastic force that the magnetic force that the magnetic field superposition that magnetic field that coil 7 produces and permanent magnet 4 produce produces overcomes spring 11 is pull-in on the

fixed core

5,6 iron core 10, and connecting rod 12 pulling contactor armature 13 close a floodgate contactor.When coil 7 logical reverse DC220V pulse voltages, spring 11 overcomes magnetic field force, flicks moving iron core 10, and contactor armature 13 moves backward, the contactor separating brake.

Claims

1. monostable unicoil permanent magnet mechanism is characterized in that: it is made up of axle (1), contactor framework (2), back plate (3), permanent magnet (4), fixed core outer ring (5), fixed core inner ring (6), coil (7), dust cover (8), coil rack (9), moving iron core (10), spring (11), connecting rod (12), contactor armature (13); The fixed core inner ring is by being bolted on the plate of back, coil rack is attached to the outer wall of fixed core inner ring, coil is loaded in the coil rack, permanent magnet is close to the back plate and is loaded in the middle of fixed core inner ring and the fixed core outer ring, dust cover is enclosed within the outer wall of fixed core outer ring and moving iron core joining part, spring two is separately fixed on contactor framework and the contactor armature, and one of connecting rod is fixed on the moving iron core with screw rod, and the other end is connected on the contactor armature by pivot pin.