CN202816812U

CN202816812U - Electromagnetic system of energy-saving contactor

Info

Publication number: CN202816812U
Application number: CN 201220476205
Authority: CN
Inventors: 仇丁辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-09-07
Filing date: 2012-09-07
Publication date: 2013-03-20
Anticipated expiration: 2022-09-07

Abstract

Provided is an electromagnetic system of an energy-saving contactor, mainly comprising a movable iron core (1), a static iron core (2), a permanent magnet (3), a coil (4) and a spring (5). The permanent magnet (3) is placed right in the middle of the static iron core (2); the coil (4) is arranged between the movable iron core (1) and the static iron core (2); one end of the spring (5) is fixed on the movable iron core (1); the static iron core (2) is in a U-shaped structure; the movable iron core (1) is in an E-shaped structure; the permanent magnet (3) is placed in a groove opened on a U-shaped inward-concave surface of the static iron core (2) and the U-shaped inward-concave surface remains flat after the permanent magnet (3) is placed in the groove; and the spring is a tension spring. According to the utility model, the effect of energy saving is achieved, and the electromagnetic system of the energy-saving contactor has the advantages of no noise, simple structure, low manufacturing cost, long service life, large suction force and the like and is especially applicable to contactors and electrical products with the functions of a contractor.

Description

A kind of electromagnetic system of energy-saving type contactor

Technical field

The utility model relates to a kind of electromagnetic system of energy-saving type contactor, is used for contactor or has the electric equipment products of contactor function, belongs to the appliance switch technical field.

Background technology

Contactor is a kind of widely used electric controling switch device, and traditional common AC, DC contactor mainly is comprised of dynamic and static iron core, coil and associated component etc.Coil must be switched on for a long time during this type of contactor work, not only waste electric energy, and noise is large, useful life short.

China Patent No. is that 200420058956.9 utility model patent discloses a kind of permanent magnetism type contactor bistable state actuating structure, this mechanism mainly by the outer yoke that consists of magnetic loop, be installed in coil wherein, T-shaped armature and the permanent magnet that is inserted in the coil hole forms.Although this permanent magnet system has the advantages such as energy-conservation and noiselessness, its complex structure, and the magnetic efficiency of permanent magnet is on the low side and the suction-combining force is less than normal.

Summary of the invention

The purpose of this utility model is to provide a kind of electromagnetic system of energy-saving type contactor, and this electromagnetic system is not only energy-conservation, and has improved utilance and the reliability of magnetic.

The technical scheme that its technical problem that solves the utility model adopts is: this energy-saving electrical magnetic system mainly is made of moving iron core (1), static iron core (2), permanent magnet (3), coil (4) and spring (5), and permanent magnet (3) has been placed in described static iron core (2) middle;

Between described moving iron core (1) and the static iron core (2) coil (4) is arranged;

Described spring (5) one ends are fixed in moving iron core (1);

Described static iron core (2) is U-shaped structure;

Described moving iron core (1) is E type structure;

Described permanent magnet (3) is positioned in the groove of offering on the U-shaped inner concave of static iron core (2), and after the placement, its U-shaped inner concave still keeps the plane;

Described spring (5) is extension spring.

The beneficial effects of the utility model are mainly manifested in: the utility model has not only been realized energy savings, but also have the advantages such as noiselessness, simple in structure, low cost of manufacture, long working life, the suction-combining force be large, be specially adapted to contactor and have on the electric equipment products of contactor function.

Description of drawings

For this practical content is more likely to be clearly understood, the below is described in further detail the utility model according to specific embodiment of the utility model also by reference to the accompanying drawings, wherein:

Fig. 1 is the structural representation of the electromagnetic system of energy-saving type contactor of the present utility model when being in attracting state;

Fig. 2 is the structural representation of the electromagnetic system of energy-saving type contactor of the present utility model when being in the disjunction state;

Among the figure: 1-moves iron core, 2-static iron core, 3-permanent magnet, 4-coil, 5-spring.

Embodiment

The below provides specific embodiment of the utility model, referring to Fig. 1 and Fig. 2, a kind of electromagnetic system of energy-saving type contactor, mainly be made of moving iron core (1), static iron core (2), permanent magnet (3), coil (4) and spring (5), permanent magnet (3) has been placed in described static iron core (2) middle;

Described moving iron core (1) and static iron core (2) asked a coil (4);

Described spring (5) one ends are fixed in moving iron core (1);

Described static iron core (2) is U-shaped structure;

Described moving iron core (1) is E type structure;

Described spring (5) is extension spring.

Referring to Fig. 1 and Fig. 2 present embodiment is realized that the conversion of adhesive and two operating states of disjunction describes.

From the disjunction state to attracting state: coil (4) is applied forward current, the polarity of the magnetic field that makes the middle pole-face of iron core (1) is the S utmost point, the pole polarity of two pole-faces is the N utmost point up and down, because permanent magnet (3) is installed in the middle of the static iron core (2), be the N utmost point in the middle of making static iron core (2), and the polarity of the magnetic field of up and down two pole-faces of static iron core (2) is the S utmost point, therefore moving iron core (1), three pole-faces of static iron core (2) are attracted each other, moving iron core (1) is subjected to magneticaction to overcome the counter-force of spring (5), move to static iron core (2), namely the conversion of adhesive operating state is finished in operation to the right.

From attracting state to the disjunction state: coil (4) is applied reverse current, the polarity of the magnetic field that makes the middle pole-face of iron core (1) is the N utmost point, the pole polarity of two pole-faces is the S utmost point up and down, because permanent magnet (3) is installed in the middle of the static iron core (2), be the N utmost point in the middle of making static iron core (2), and the polarity of the magnetic field of the upper lower pole face of static iron core (2) is the S utmost point, therefore moving iron core (1), three pole-faces of static iron core (2) are mutually exclusive, moving iron core (1) is under the acting in conjunction of repulsive force and the stack of spring (5) counter-force, to the anti-operation of static iron core (2), and operation left, the dress of finishing the disjunction operating state turns.

Although 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 various changes and revise and do not break away from a broad sense the utility model; 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 electromagnetic system of an energy-saving type contactor mainly is made of moving iron core (1), static iron core (2), permanent magnet (3), coil (4) and spring (5), it is characterized in that:

Permanent magnet (3) has been placed in described static iron core (2) middle;

Described spring (5) one ends are fixed in moving iron core (1).

2. the electromagnetic system of a kind of energy-saving type contactor according to claim 1 is characterized in that:

Described static iron core (2) is U-shaped structure.

3. the electromagnetic system of a kind of energy-saving type contactor according to claim 1 is characterized in that:

Described moving iron core (1) is E type structure.

4. the electromagnetic system of a kind of energy-saving type contactor according to claim 1 and 2 is characterized in that:

Described permanent magnet (3) is positioned in the groove of offering on the U-shaped inner concave of static iron core (2), and after the placement, its U-shaped inner concave still keeps the plane.

5. the electromagnetic system of a kind of energy-saving type contactor according to claim 1 is characterized in that:

Described spring (5) is extension spring.