CN203941866U

CN203941866U - Increase a kind of structure of electromagnetic relay suction

Info

Publication number: CN203941866U
Application number: CN201420314424.0U
Authority: CN
Inventors: 高建定; 温启洪
Original assignee: NINGBO JINHAI ELECTRONIC CO Ltd
Current assignee: NINGBO JINHAI ELECTRONIC CO Ltd
Priority date: 2014-06-13
Filing date: 2014-06-13
Publication date: 2014-11-12
Anticipated expiration: 2024-06-13

Abstract

A kind of structure that increases electromagnetic relay suction, he comprises magnetic circuit part, is located at armature, yoke, iron core and coil on magnetic circuit part, the width of described iron core head end athwartship plane is consistent with coil transverse width.The beneficial effect of above-mentioned design is the width by increasing iron core head end athwartship plane, expands iron core head end and armature contact area, and after the magnetic conductance of iron core head unit are increases, magnetic circuit suction increases.So both solved and controlled product operation voltage, and need not additionally increase product parts again or change other mechanical structure.

Description

Increase a kind of structure of electromagnetic relay suction

Technical field

The utility model relates to the architecture advances of energized relay circuit, particularly a kind of architecture advances that increases relay suction.

Background technology

The clapper-type electromagnetic relay using at present, magnetic circuit adopts sheet type iron core or column type core structure substantially, and wherein sheet type iron core is applied in the relay of many commutation circuits more.And sheet type iron core is all the many 2mm of width than iron core and coil mating part with the width of armature contact portion, this width mainly plays fixed coil left and right.But relay is containing multiple commutation circuits, and under heavy load (load current 15A 250VAC) and rated power condition, keep product to meet in the situation of IEC temperature rise standard, this high load relay should meet standard by product, additionally do not increase again part or change other mechanical structure, load performance does not reduce again impact simultaneously, this technology technical problem substantially also fails to solve at present, shown in Fig. 1, be the fit structure of armature and iron core in current energized relay circuit part, the Main Function of this structure lower core head width part is fixed coil.

Summary of the invention

The utility model, for the problems referred to above, is not increasing under electromagnetic relay parts prerequisite, designs a kind of structure that increases electromagnetic relay suction, reaches the reliability of relay under high load condition, meets relay high capacity, high performance developing direction.

Increase a kind of structure of electromagnetic relay suction, it comprises armature, yoke, iron core and the coil of magnetic circuit part, it is characterized in that the width of the iron core head end athwartship plane width horizontal with coil is consistent.

The width of described iron core head end athwartship plane is 1.8 ~ 2 times of iron core middle part transverse width, and iron core head end athwartship plane width is 5.5 ~ 6 times of iron core head end transverse gage.

The beneficial effect of above-mentioned design is by increasing iron core head end transverse width, expand iron core head end and armature contact area, the magnetic conductance of iron core head unit are is increased, magnetic circuit suction increases, so both solved and controlled product operation voltage, and additionally do not increased again product parts or change other mechanical structure.

Brief description of the drawings

Fig. 1 a is existing electromagnetic relay internal structure end view.

Fig. 1 b is that the A of Fig. 1 a is to view when armature 2 (omit).

Fig. 2 a is the electromagnetic relay internal structure end view after magnetic structure improves.

Fig. 2 b is that the A of Fig. 2 a is to view when armature 2 (omit).

Fig. 3 a is the core structure end view after improving.

Fig. 3 b is that the B of Fig. 3 a is to view.

Embodiment

Below in conjunction with accompanying drawing, the utility model structure is further described.

Shown in Fig. 1 a and Fig. 2 a, magnetic structure of the present utility model is substantially constant, comprise iron core 1, armature 2, coil 3, yoke 4, except iron core 1, the shape of armature 2, coil 3 and yoke 4, position, electromagnetic parameter all do not change, and the transverse width of the armature 2 of prior art is substantially consistent with coil 3 transverse widths.The global shape of electromagnetic relay and size, size also do not change, difference is shape and the area that has only changed the head end 11 of iron core 1, as shown in Figure 1 b, the iron core head end transverse width of prior art is only than the many 2mm of iron core 1 transverse width, this width is mainly used for the effect of fixed coil 3, the electromagnetic attraction of this iron core 1 shown in Fig. 1 to armature 2, represents with high temperature operation voltage height, and rated voltage shown in detection Fig. 1 is that the high temperature operation voltage of 110Vdc electromagnetic relay is 93-97V.

Shown in Fig. 2 b, Fig. 3 a and Fig. 3 b, the width of iron core 1 head end athwartship plane width 1a is coil 3 transverse widths, this width equals the transverse width of transverse width+bobbin left and right sides coil of bobbin, and the transverse width of this coil 3 is the horizontal front view head athwartship plane width of iron core 1 1a as shown in Figure 3 b.If iron core 1 middle part transverse width 1b is considered as to the transverse width of bobbin or coil hole, can determine that iron core head end transverse width 1a is 1.8～2 times of iron core middle part transverse width 1b, be iron core 1 transverse side view as shown in Figure 3 a, the width 1a that also can determine iron core head end athwartship plane is 5.5～6 times of iron core head end transverse gage 1d.

If by prior art, the width of iron core and coil hole mating part is constant is still 12mm, iron core head end transverse gage is constant is still 4mm, the iron core head end 11 of improved is increased to 22.8 ~ 24mm with the transverse width of armature 2 contact portions, thereby magnetic conductance area change 65% left and right that horizontal iron core head end 1a is contacted with armature 2, electromagnetic attraction represents with high temperature operation voltage height, rated voltage shown in Fig. 2 a is that the high temperature operation voltage of 110Vdc electromagnetic relay is 76～83V, high temperature operation voltage declines 20～30%, the method of this increase magnetic conductance area has solved neither to be increased parts or changes other mechanical structure, need not reduce again properties of product and index, product reliability under high load condition is protected.

Claims

1. a kind of structure that increases electromagnetic relay suction, he comprises magnetic circuit part, is located at armature, yoke, iron core and coil on magnetic circuit part, it is characterized in that the width of the iron core head end athwartship plane width horizontal with coil is consistent.

2. a kind of structure of increase electromagnetic relay suction according to claim 1, is characterized in that described iron core head end athwartship plane width is 1.8 ~ 2 times of iron core middle part transverse width.

3. a kind of structure of increase electromagnetic relay suction according to claim 1, is characterized in that described iron core head end athwartship plane width is 5.5 ~ 6 times of iron core head end transverse gage.