CN203118874U

CN203118874U - Electromagnet device of contactor

Info

Publication number: CN203118874U
Application number: CN 201320142266
Authority: CN
Inventors: 陈勤
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-25
Filing date: 2013-03-25
Publication date: 2013-08-07
Anticipated expiration: 2023-03-25

Abstract

The utility model discloses an electromagnet device of a contactor. The electromagnet device is characterized in that a boss plane is formed on a movable iron core, a groove plane is formed on each fixed iron core, and initial attractive force is increased by means of forming a second magnetic circuit on the premise that the quantity of ampere turns is not increased, so that energy can be effectively saved, the size of an electromagnet is controlled, and the electromagnet can be used under the condition of limited size of the electromagnet. The electromagnet device has the advantages that owing to the low quantity of the ampere turns, energy is effectively utilized, impact of the fixed iron cores to the movable iron core when air gaps are small is reduced, and the service life of the electromagnet is prolonged.

Description

A kind of electromagnet apparatus of contactor

Technical field

The utility model relates to the parts of low-voltage electrical apparatus, especially relates to a kind of electromagnet apparatus of contactor.

Background technology

Present DC electromagnet when reaching big stroke, because leakage field is more and bigger to volume requirement, needs number of ampere turns big, and winding volume is big, and it is bigger that core volume all requires, and will improve the iron loss copper loss.

Present widely used electromagnet, no matter be towed electromagnet or push electric magnet, brake type electromagnet, or the electromagnet that various A.C. contactors are used, the common problem that exists is that power consumption height, noise are big, bump is serious during adhesive, the life-span is low, need good electrical steel sheet material, the processing and manufacturing difficulty, the copper loss amount is many, and volume is big, moving iron core guiding is poor, generally can only vertically install during use.At these problems, a lot of solutions have appearred, as the various silent running control circuits of A.C. contactor, remanent magnetism freeze mode relay, twin coil A.C. contactor, permanent magnetism freeze mode relay, mechanical self-latching type relay, height voltage driven type electromagnet etc.

The utility model content

In order to overcome above-mentioned shortcoming, the purpose of this utility model is to provide a kind of electromagnet apparatus of contactor, reduces the electromagnet volume, and minimizing is with material and keep big suction.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of electromagnet apparatus of contactor, comprise static iron core (2), moving iron core (1), described static iron core is two " I " font static iron cores of placing symmetrically, each " I " font static iron core comprises iron core column (2b) and pole shoe (2a), described pole shoe (2a) area is greater than iron core column (2b) area, be respectively arranged with a coil on each iron core column (2b), the pole-face of described moving iron core (1) includes first pole-face (11), second pole-face (12) and the 3rd pole-face (13); The pole-face of described static iron core (2) includes the 4th pole-face (21), the 5th pole-face (22) and sextupole face (23).

The 4th pole-face (21) of the pole-face of described static iron core (2) and sextupole face (23) are on same plane, and the 5th pole-face (22) is a groove plane.

First pole-face (11) of the pole-face of described moving iron core (1) and the 3rd pole-face (13) are on same plane, and second pole-face (12) is a boss plane.

The beneficial effects of the utility model mainly show: the electromagnet apparatus of the contactor that the utility model provides, be formed with a boss plane on the described moving iron core, be formed with a groove plane on the static iron core, under the prerequisite that does not improve number of ampere turns, improve initial suction by forming second magnetic loop, thereby can be effectively energy-conservation, and controlled the volume of electromagnet, can under the condition of finite volume, use.Because ampere-turn is lower, when effectively having utilized the energy, static iron core is to the impact of moving iron core, the life-span of having improved electromagnet when having reduced small air gap.

Description of drawings

Content of the present utility model is easier clearly to be understood in order to make, according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail below, wherein:

Fig. 1 is the structural representation of the electromagnet apparatus of contactor of the present utility model;

Fig. 2 is the moving iron core of the electromagnet apparatus of contactor of the present utility model, the structure side view of static iron core;

Fig. 3 is the moving iron core of the electromagnet apparatus of contactor of the present utility model, the structural perspective of static iron core;

Fig. 4 is the structural perspective of static iron core of the electromagnet apparatus of contactor of the present utility model;

Fig. 5 is the structural perspective of moving iron core of the electromagnet apparatus of contactor of the present utility model;

Among the figure: 1-moves iron core, 2-static iron core, 2a-pole shoe, 2b-iron core column, 11-first pole-face, 12-second pole-face, 13-the 3rd pole-face, 21-the 4th pole-face, 22-the 5th pole-face, 23-sextupole face.

Embodiment

With reference to Fig. 1～Fig. 5, a kind of electromagnet apparatus of contactor, comprise static iron core (2), moving iron core (1), described static iron core is two " I " font static iron cores of placing symmetrically, each " I " font static iron core comprises iron core column (2b) and pole shoe (2a), described pole shoe (2a) area is greater than iron core column (2b) area, be respectively arranged with a coil on each iron core column (2b), the pole-face of described moving iron core (1) includes first pole-face (11), second pole-face (12) and the 3rd pole-face (13); The pole-face of described static iron core (2) includes the 4th pole-face (21), the 5th pole-face (22) and sextupole face (23).

Describe the principle process of this road of electromagnet of the present utility model and increase suction below in detail, the electromagnet apparatus of the contactor that the utility model provides, static iron core and moving iron core are made of permeability magnetic material, as we know from the figure, the static iron core 2 that constitutes magnetic circuit has the placement of two symmetries, each static iron core comprises iron core column 2b and pole shoe 2a, and the area of pole shoe 2a is bigger than iron core column 2b, has increased the relative area of static iron core.The side of moving iron core 1 is the T font, static iron core 2 is provided with five pole-face 22 corresponding with moving iron core second pole-face 12, wherein first pole-face 11 and the 3rd pole-face 13 have constituted the main magnetic circuit C1 of electromagnet together with static iron core, and the adhesive of electromagnet is played a leading role; Second pole-face 12 has constituted the auxiliary magnetic circuit C2 of electromagnet with static iron core, has guaranteed minimizing of leakage flux.

Owing to increased by second pole-face, 12 parts, when main working gas gap H hour, main magnetic circuit C1 and auxiliary magnetic circuit C2 concur, but when main working gas gap H is big, because the increasing of air gap among the magnetic circuit C1, increasing of leakage flux, magnetic field intensity in the C1 main magnetic circuit descends very fast, but for auxiliary magnetic circuit C2, the increase of main working gas gap H does not produce very big influence to auxiliary magnetic circuit, so provide the initial suction bigger than general electromagnet in the time of can being implemented in big working gas gap, and need not increase electromagnetism spy's number of ampere turns and core area, saved the energy.

Though the utility model is described with reference to the above embodiments; but those of ordinary skill in the art; will be appreciated that above embodiment illustrates the utility model; should understand and wherein can make variations and modifications and do not break away from the utility model in a broad sense; so be not that conduct is to restriction of the present utility model; as long as in connotation scope of the present utility model, to the variation of the embodiment under above, the protection range that distortion all will fall into the utility model claim.

Claims

1. the electromagnet apparatus of a contactor, comprise static iron core (2), moving iron core (1), described static iron core is two " I " font static iron cores of placing symmetrically, each " I " font static iron core comprises iron core column (2b) and pole shoe (2a), described pole shoe (2a) area is greater than iron core column (2b) area, be respectively arranged with a coil on each iron core column (2b), it is characterized in that: the pole-face of described moving iron core (1) includes first pole-face (11), second pole-face (12) and the 3rd pole-face (13); The pole-face of described static iron core (2) includes the 4th pole-face (21), the 5th pole-face (22) and sextupole face (23).

2. the electromagnet apparatus of contactor according to claim 1, it is characterized in that: the 4th pole-face (21) of the pole-face of described static iron core (2) and sextupole face (23) are on same plane, and the 5th pole-face (22) is a groove plane.

3. the electromagnet apparatus of contactor according to claim 1, it is characterized in that: first pole-face (11) of the pole-face of described moving iron core (1) and the 3rd pole-face (13) are on same plane, and second pole-face (12) is a boss plane.