CN208208663U - Electromagnetic system and A.C. contactor - Google Patents

Abstract

The utility model provides a kind of electromagnetic system and A.C. contactor, and electromagnetic system includes: pedestal (10), has buffering boss (11) on the inner bottom surface of pedestal (10)；Iron core (20), is arranged on pedestal (10) and its bottom surface is connected in buffering boss (11)；Coil rack (30), it is set on the part of iron core (20), there is the positioning protrusion (31) for compressing iron core (20) and adjusting the excess of stroke, the outer surface of positioning protrusion (31) is arcwall face on the bottom surface of coil rack (30).The technical solution of the utility model effective solution does not know the problem that the positioning convex point of what shape is more wear resistant, more reliable in the prior art.

Description

Electromagnetic system and A.C. contactor

Technical field

The utility model relates to low voltage electrical apparatus technology fields, and in particular to a kind of electromagnetic system and A.C. contactor.

Background technique

Currently, the structure of electromagnetic system includes pedestal and the iron core and coil rack that are set on the base, iron core and coil Skeleton is positioned by lateral pin and two blocks, specifically, a lateral pin is passed through on iron core, the both ends of lateral pin are respectively inserted in one Block, coil rack are pressed on two blocks for adjusting the excess of stroke, and the positioning of iron core and coil rack is controlled by the block on both sides System.The positioning method of iron core and coil rack has following defect:

1, can be too tight with fitting coils when the size of block has deviation, lead to have vibration or noise when being attracted.

2, part is more, causes assembly process more, and assembly is inconvenient, at high cost.

In view of the foregoing drawbacks, patent document CN205122495U discloses a kind of iron core buffer gear of A.C. contactor, The structure includes coil rack, iron core and the pedestal for accommodating coil rack and iron core, is had on the bottom face of coil rack There is positioning convex point, positioning convex point is connected on iron core, is provided with rubber bumper between iron core and the bottom plate of pedestal.The patent does not have Have and the shape of positioning convex point is defined, and then does not know that the positioning convex point of what shape is more wear resistant, more reliable.Therefore, existing It is badly in need of a kind of more wear resistant, more reliable iron core buffer gear.

Utility model content

The main purpose of the utility model is to provide a kind of electromagnetic system and A.C. contactors, to solve in the prior art The problem that the positioning convex point of what shape is more wear resistant, more reliable is not known.

To achieve the above object, the utility model provides a kind of electromagnetic system, comprising: pedestal, on the inner bottom surface of pedestal With buffering boss；Iron core, is set on the base and its bottom surface is connected on buffering boss；Coil rack is set in iron core On part, there is the positioning protrusion for compressing iron core and adjusting the excess of stroke on the bottom surface of coil rack, the outer surface of positioning protrusion is arc Shape face.

Further, positioning protrusion is semiellipsoid.

Further, the extending direction of the long axis of semiellipsoid and the installation direction of iron core are parallel.

Further, the upper surface for buffering boss is arcuate surface.

Further, buffering boss is sheet body structure.

Further, there is the position limiting structure limited to iron core, to limit iron core shaking on pedestal.

Further, position limiting structure includes two locating parts that the opposite sides of iron core is arranged in, the cloth of two locating parts Direction is set perpendicular to the installation direction of iron core.

Further, buffering boss is equipped with multiple, and multiple buffering boss are arranged in matrix.

Further, the shape of iron core is E shape, and coil rack is set in the middle iron core column of iron core.

The utility model also provides a kind of A.C. contactor, comprising: electromagnetic system, electromagnetic system are above-mentioned electromagnetic system System.

Technical solutions of the utility model have the advantages that the outer surface of positioning protrusion is arcwall face, arcwall face and iron core Contact area it is bigger, it is more wear resistant, improve reliability.Iron core and coil rack only pass through the positioning protrusion on coil rack simultaneously It is positioned, positioning protrusion compresses iron core, adjusts the excess of stroke, eliminates lateral pin and block in the prior art, and then eliminate multiple Part and multiple working procedure reduce Assembly part, facilitate employee convenient, improved efficiency is significant, also reduces cost.And on pedestal The bottom surface of boss and iron core is buffered, buffering boss plays the buffering effect of armature and iron core when being attracted, and eliminates existing There is the bolster in technology, which further eliminate a part and a procedure, reduce Assembly part, facilitates employee convenient, mention High efficiency.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.In the accompanying drawings:

Fig. 1 shows the decomposition diagram of the embodiment of electromagnetic system according to the present utility model；

Fig. 2 shows the stereoscopic schematic diagrams of the coil rack of the electromagnetic system of Fig. 1；

Fig. 3 shows the partial schematic sectional view of the electromagnetic system of Fig. 1；

Fig. 4 shows the stereoscopic schematic diagram of the pedestal of the electromagnetic system of Fig. 1；

Fig. 5 shows the schematic top plan view of the pedestal of Fig. 4；

Fig. 6 shows the schematic cross-sectional view of the pedestal of Fig. 4.

Wherein, the appended drawing reference in above-mentioned attached drawing are as follows:

10, pedestal；11, boss is buffered；12, locating part；20, iron core；30, coil rack；31, positioning protrusion.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

As shown in Figures 1 to 4, the electromagnetic system of the present embodiment includes: pedestal 10, iron core 20 and coil rack 30, pedestal There is buffering boss 11, iron core 20 is arranged on pedestal 10 and its bottom surface is connected on buffering boss 11 on 10 inner bottom surface；Line Ring framework 30 is set on the part of iron core 20, has the positioning for compressing iron core 20 and adjusting the excess of stroke on the bottom surface of coil rack 30 Protrusion 31, the outer surface of positioning protrusion 31 are arcwall face.

Using the electromagnetic system of the present embodiment, the outer surface of positioning protrusion 31 is arcwall face, contact of the arcwall face with iron core Area is bigger, more wear resistant, improves reliability.Iron core 20 and coil rack 30 only pass through the positioning protrusion on coil rack 30 simultaneously 31 are positioned, and positioning protrusion 31 compresses iron core 20, adjust the excess of stroke, eliminate lateral pin and block in the prior art, and then cancel Multiple parts and multiple working procedure reduce Assembly part, facilitate employee convenient, improved efficiency is significant, also reduce cost.And bottom The bottom surface of buffering boss 11 and iron core 20 on seat 10, buffering boss 11 play the buffering of armature and iron core when being attracted Effect eliminates bolster in the prior art, which further eliminates a part and a procedure, reduces Assembly part, side Just employee is convenient, improves production efficiency.

In the present embodiment, positioning protrusion 31 is semiellipsoid.Semiellipsoid is easy to process, reduces manufacturing cost.At this In embodiment, the extending direction of the long axis of semiellipsoid is parallel with the installation direction of iron core 20.

In the present embodiment, as shown in Figures 4 to 6, the upper surface for buffering boss 11 is arcuate surface, and buffering effect is more preferable. In the present embodiment, buffering boss 11 is sheet body structure.Structure is simple, easy to process.

In the present embodiment, in order to improve buffering effect, buffering boss 11 is equipped with multiple, and multiple buffering boss 11 are in matrix Arrangement.

In the present embodiment, there is the position limiting structure limited to iron core 20, to limit the shaking of iron core 20 on pedestal 10. Specifically, position limiting structure includes two locating parts 12 that the opposite sides of iron core 20 is arranged in, the arrangement side of two locating parts 12 To the installation direction perpendicular to iron core 20, the double swerve of iron core 20 can be limited in this way.

In the present embodiment, as shown in Figure 1, the shape of iron core 20 is E shape, coil rack 30 is set in the middle iron of iron core 20 On stem.

Present invention also provides a kind of A.C. contactor, which includes: electromagnetic system, and electromagnetic system is above-mentioned Electromagnetic system.

Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or It changes among the protection scope created still in the utility model.

Claims (10)

1. a kind of electromagnetic system characterized by comprising

Pedestal (10) has buffering boss (11) on the inner bottom surface of the pedestal (10)；

Iron core (20) is arranged on the pedestal (10) and its bottom surface is connected on the buffering boss (11)；

Coil rack (30), is set on the part of the iron core (20), has on the bottom surface of the coil rack (30) and compresses The iron core (20) and the positioning protrusion (31) for adjusting the excess of stroke, the outer surface of the positioning protrusion (31) are arcwall face.

2. electromagnetic system according to claim 1, which is characterized in that the positioning protrusion (31) is semiellipsoid.

3. electromagnetic system according to claim 2, which is characterized in that the extending direction of the long axis of the semiellipsoid with The installation direction of the iron core (20) is parallel.

4. electromagnetic system according to claim 1, which is characterized in that the upper surface of buffering boss (11) is arch Face.

5. electromagnetic system according to claim 1, which is characterized in that the buffering boss (11) is sheet body structure.

6. electromagnetic system according to claim 1, which is characterized in that have on the pedestal (10) to the iron core (20) The position limiting structure limited, to limit the iron core (20) shaking.

7. electromagnetic system according to claim 6, which is characterized in that the position limiting structure includes being arranged in the iron core (20) two locating parts (12) of opposite sides, the arranged direction of two locating parts (12) is perpendicular to the iron core (20) Installation direction.

8. electromagnetic system according to claim 1, which is characterized in that the buffering boss (11) is equipped with multiple, Duo Gesuo Buffering boss (11) is stated to arrange in matrix.

9. electromagnetic system according to claim 1, which is characterized in that the shape of the iron core (20) is E shape, the coil Skeleton (30) is set in the middle iron core column of the iron core (20).

10. a kind of A.C. contactor, comprising: electromagnetic system, which is characterized in that the electromagnetic system is to appoint in claim 1 to 9 Electromagnetic system described in one.