CN204614737U - A kind of electromagnetic mechanism of A.C. contactor - Google Patents

Abstract

The utility model relates to a kind of electromagnetic mechanism of A.C. contactor, comprise supporting plate, coil windings and bar shaped static iron core and frame-type move iron core, described frame-type is moved iron core and is had lateral connection portion and the first adhesive portion from the two ends in described lateral connection portion longitudinally to downward-extension, the bottom face in described first adhesive portion forms the first adhesive face, described supporting plate is provided with two boss, described bar shaped static iron core interts in described coil windings, and this bar shaped static iron core forms the second adhesive portion in the both sides of described coil windings, the lower surface in described second adhesive portion is overlapped on described boss, and corresponding with the described first adhesive face in a longitudinal direction end face in described second adhesive portion forms the second adhesive face.The structure that the utility model interts in described coil windings owing to adopting bar shaped static iron core, the engagement height making this bar shaped static iron core and frame-type move iron core reduces, and then can effectively reduce the whole height of A.C. contactor, the effect reach small and exquisite, reducing costs.

Description

A kind of electromagnetic mechanism of A.C. contactor

Technical field

The utility model relates to the electromagnetic driving system for the electromagnetic switch of commutation circuit in a kind of low-voltage electrical field, particularly relates to a kind of electromagnetic mechanism being applicable to A.C. contactor.

Background technology

A.C. contactor is widely used as the various engineer operation fields with control circuit of cut-offfing of electric power, it mainly comprises four major parts, electromagnetic mechanism respectively, contact system, arc-control device and insulation crust and annex, the utility model relates generally to the electromagnetic mechanism part of A.C. contactor, i.e. electromagnetic mechanism, those skilled in the art should know, the electromagnetic mechanism of A.C. contactor mainly comprises coil, static iron core and dynamic iron core, wherein dynamic iron core and contact system link, its work general principle is as follows: when the coil is energized, static iron core produces electromagnetic attraction, iron core adhesive will be moved, because contact system and dynamic iron core link, therefore dynamic iron core drives three movable contact springs to run simultaneously, the closing of contact, thus switch on power, when the coil is de-energized, suction disappears, and dynamic iron core interlock part relies on the reaction force of spring and is separated, and main contact is disconnected, cuts off the electricity supply.

On existing market, electromagnetic mechanism due to A.C. contactor generally adopts two in the static iron core of " E " font and the mutual adhesive of dynamic iron core and switching on power, now, coil windings is arranged between dynamic iron core and static iron core, the electromagnetic mechanism of this structure due to the whole height after static iron core and dynamic iron core adhesive higher, and the height of coil windings is also contained between static iron core and dynamic iron core, therefore the height as the electromagnetic mechanism of one of the critical piece of A.C. contactor certainly will have influence on the height of A.C. contactor, the utility model is based on the architectural feature of the electromagnetic mechanism of A.C. contactor on existing market described above, and put forth effort on a kind of more exquisite small and exquisite electromagnetic mechanism being applicable to A.C. contactor of research and development.

Summary of the invention

The purpose of this utility model is the defect overcoming prior art, there is provided a kind of structure simple, the novel in design electromagnetic mechanism being applicable to A.C. contactor that also effectively can reduce production cost, this electromagnetic mechanism, relative to electromagnetic mechanism of the prior art, highly obviously decreases.

For achieving the above object, the utility model adopts a kind of electromagnetic mechanism of A.C. contactor, comprise supporting plate, coil windings and bar shaped static iron core and frame-type move iron core, described frame-type is moved iron core and is had lateral connection portion and the first adhesive portion from the two ends in described lateral connection portion longitudinally to downward-extension, the bottom face in described first adhesive portion forms the first adhesive face, described supporting plate is provided with two boss, described bar shaped static iron core interts in described coil windings, and this bar shaped static iron core forms the second adhesive portion in the both sides of described coil windings, the lower surface in described second adhesive portion is overlapped on described boss, and corresponding with the described first adhesive face in a longitudinal direction end face in described second adhesive portion forms the second adhesive face.

By the above-mentioned improvement to prior art, due to static iron core is arranged to strip structure, and this bar shaped static iron core interts in described coil windings, obviously, described coil windings only has the At The Height of half between static iron core and dynamic iron core, equally can inference, the degree of depth that described frame-type moves iron core also only need meet and is large enough to hold the general of coil windings and highly just can, therefore, the electromagnetic mechanism of the present utility model whole height when adhesive obviously all decreases relative to electromagnetic mechanism of the prior art, and then the whole height of A.C. contactor is decreased, in like manner, because bar shaped static iron core and frame-type move ferrous for " E " font static iron core and dynamic iron core, no matter on production technology or production cost, all obviously, decrease, therefore electromagnetic mechanism of the present utility model is adopted can also to reach the effect reduced costs.

Accompanying drawing explanation

Fig. 1 is electromagnetic mechanism structural representation of the present utility model.

Fig. 2 is the structural representation of electromagnetic mechanism in prior art.

Embodiment

As shown in Figure 1, the present embodiment adopts a kind of electromagnetic mechanism of A.C. contactor, comprise supporting plate 1, coil windings 2 and bar shaped static iron core 3 and frame-type move iron core 4, described frame-type is moved iron core 4 and is had lateral connection portion 40 and the first adhesive portion 41 from the two ends in described lateral connection portion 40 longitudinally to downward-extension, the bottom face in described first adhesive portion 41 forms the first adhesive face 410, described supporting plate 1 is provided with two boss 10, described bar shaped static iron core 3 interts in described coil windings 2, and this bar shaped static iron core 3 forms the second adhesive portion 30 in the both sides of described coil windings 2, the lower surface in described second adhesive portion 30 is overlapped on described boss 10, and corresponding with the described first adhesive face 410 in a longitudinal direction end face in described second adhesive portion 30 forms the second adhesive face 300.

The background technology of composition graphs 2 is known, in the prior art, the static iron core of electromagnetic mechanism and dynamic iron core adopt " E " font structure, and the entirety of coil windings 2 is included between static iron core and dynamic iron core, therefore, Fig. 1 and Fig. 2 contrasts known, the present embodiment electromagnetic mechanism reduction be in height mainly manifested in following three aspects: 1, the bar shaped static iron core 3 of the present embodiment in height obviously reduces many compared to " E " of the prior art font static iron core 3e; 2, the coil windings 2 of the present embodiment only has the At The Height of half-turn to move between iron core 4 at bar shaped static iron core 3 and frame-type, and coil windings of the prior art 2 entirety is included in " E " font static iron core 3e and " E " font is moved between iron core 4e; 3, because the coil windings 2 of the present embodiment only has the At The Height of half-turn to move between iron core 4 at bar shaped static iron core 3 and frame-type, therefore, as long as the degree of depth accordingly frame-type can being moved iron core 4 is reduced to the height meeting half-turn coil winding 2, the degree of depth moving iron core 4e relative to " E " of the prior art font also has substantial degradation.Description in conjunction with above three aspects is known, and the whole height of the electromagnetic mechanism of the present embodiment far below the height of electromagnetic mechanism of the prior art, and then also will can effectively reduce the height of A.C. contactor, reaches exquisite small and exquisite and the beneficial effect reduced costs.

Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description easily; such as change the fit structure etc. of static iron core and dynamic iron core; as long as the non-magnetic material layer that have employed in the present embodiment carries out the scheme reducing or solve remanent magnetism phenomenon, all belong to spirit institute's apparent change of amplifying out of the present utility model or change and be still among protection range of the present utility model.

Claims (1)

1. the electromagnetic mechanism of an A.C. contactor, it is characterized in that: comprise supporting plate, coil windings and bar shaped static iron core and frame-type move iron core, described frame-type is moved iron core and is had lateral connection portion and the first adhesive portion from the two ends in described lateral connection portion longitudinally to downward-extension, the bottom face in described first adhesive portion forms the first adhesive face, described supporting plate is provided with two boss, described bar shaped static iron core interts in described coil windings, and this bar shaped static iron core forms the second adhesive portion in the both sides of described coil windings, the lower surface in described second adhesive portion is overlapped on described boss, and corresponding with the described first adhesive face in a longitudinal direction end face in described second adhesive portion forms the second adhesive face.