CN203277233U

CN203277233U - Electromagnetic relay with double coils

Info

Publication number: CN203277233U
Application number: CN 201320320021
Authority: CN
Inventors: 陈长桥
Original assignee: XIAMEN PLID AUTOMOBILE ELECTRONIC CO Ltd
Current assignee: XIAMEN PLID AUTOMOBILE ELECTRONIC CO Ltd
Priority date: 2013-06-05
Filing date: 2013-06-05
Publication date: 2013-11-06
Anticipated expiration: 2023-06-05

Abstract

This utility model discloses an electromagnetic relay with double coils, relating to the technology field of electromagnetic relay manufacture. The electromagnetic relay with double coils comprises a base, an L-shaped yoke, and an armature. One end of the L-shaped yoke is fixed on the base; the middle-upper part of the armature is snapped on the other end of the L-shaped yoke; the armature can swing along the snapping contacts; a projection is positioned in the middle of the upper surface of the L-shaped yoke; a spring is positioned between the projection on the upper part of the armature and the projection on the upper surface of the L-shaped yoke. Elastic contacts are positioned on the middle-lower part of the armature; two frameworks are positioned side by side in a space enclosed by the base, the L-shaped yoke and the armature; each framework is provided with a winding; two windings are connected in series; each framework is provided with an iron core in the center; and positions of one ends of the iron cores in proximity to the armature are opposite to the inner side of the armature. The electromagnetic relay with double coils can effectively reduce usage amount of enameled wires of windings, reduce power consumption and manufacture cost of the relay, improve reliability of armature motion, and guarantee working performance of the relay.

Description

A kind of electromagnetic relay with twin coil

Technical field

The utility model relates to electromagnetic relay manufacturing technology field, especially a kind of electromagnetic relay with twin coil.

Background technology

traditional electromagnetic relay usually arranges a coil and matches with a yoke and an armature, when being wound around on same skeleton due to enamelled wire, the diameter that more past outer enamelled wire forms is larger, its required enamelled wire is just longer, longer its resistance of the length of enamelled wire will be larger, in use its power consumption will increase, and simultaneously because the material cost of enamelled wire is higher, its manufacturing cost is difficult to reduce, on the other hand, owing to only having a skeleton, an iron core can only be installed in the center of skeleton, usually the position of iron core can be corresponding with the centre position of armature medial surface, armature is that the pulling force that produced by an electromagnetic attraction and extension spring matches and swings back and forth in theory, but in fact, only have an electromagnetic attraction to be difficult to be in the centre position of armature medial surface, when skew appears in electromagnetic attraction, the just possible deflection of armature, two elasticity that are connected with armature are controlled the contact and the situation that can not contact simultaneously or disconnect simultaneously occurred sometimes, reduced the performance of relay.

The utility model content

The technical problems to be solved in the utility model is to provide a kind of electromagnetic relay with twin coil, effectively reduces the consumption of winding enamelled wire, reduces power consumption and the manufacturing cost of relay, improves the reliability of armature movement, guarantees the service behaviour of relay.

for achieving the above object, the technical solution of the utility model is: a kind of electromagnetic relay with twin coil, comprise base, a L-type yoke, an armature, one end of L-type yoke is fixed on base, the middle and upper part of armature is overlapped on the L-type yoke other end, armature can swing along overlapped points, the centre of L-type yoke upper surface is provided with a projection, between the projection of the upper end of armature and L-type yoke upper surface, extension spring is housed, the middle and lower part of armature is connected with resilient contact, base, two skeletons are housed in the space that L-type yoke and armature surround side by side, all be wound with winding on two skeletons, two windings are connected in series mutually, iron core all is equipped with at the center of two skeletons, two iron cores are corresponding with the medial surface of armature near an end position of armature.

The adjacent side of preferred two skeletons is connected with dovetail by dovetail groove.The assembling of convenient two skeletons guarantees the stability that two skeletons connect.

Further improve, the downside of each skeleton end is provided with barb, and the upper surface of base is provided with pilot hole and matches with described barb.Facilitate skeleton and base to fix, prevent the movement of skeleton.

Further improve, the centre of described armature upper end is provided with projection, and described extension spring is contained between the projection of armature upper end projection and L-type yoke upper surface.Facilitate the installation of extension spring, improve the stressed of armature.

Preferred described L-type yoke is mutually vertical with the upper surface of base with the end that base fixes, and the central axis of two skeletons parallels with the upper surface of base.Further guarantee the reliability of armature movement.

The structure of preferred two skeletons, shape, measure-alike, a side at each skeleton two ends is provided with dovetail groove, opposite side is provided with dovetail.Be conducive to reduce manufacturing cost.

The utlity model has following beneficial effect:

1, adopt a coil and a yoke and an armature to match in situation in traditional relay, when in coil, enamelled wire is wound around on skeleton, to form diameter larger for more past outer field enamelled wire, and its required enamelled wire is just longer, and the utility model adopts two coils to match with a yoke and an armature, carrying out simultaneously enamelled wire on two skeletons is wound around, then two windings that form are connected, when the coils of total number of turns and traditional relay of two windings on two skeletons forms the total number of turns of a winding when identical at a skeleton, the total length that is wound around enamelled wire on two skeletons can effectively reduce than the enamelled wire length that is wound around the identical number of turn on a skeleton, enamelled wire length reduces its resistance and will reduce, in the situation that identical use voltage, the power consumption of relay just can effectively reduce, higher because of the enamelled wire material cost simultaneously, in the situation that enamelled wire length reduces, the manufacturing cost of relay has also just reduced, on the other hand, do not considering in the manufacturing cost situation, identical enamelled wire length is wound around the total number of turns that also can increase winding on two skeletons, in the situation that other condition is constant, can increase the electromagnetic attraction that coil produces, thereby improve the performance of relay.

2, be set up in parallel because the utility model adopts two coils, iron core all is equipped with at the center of two skeletons, and two iron cores are corresponding with the medial surface of armature near an end position of armature; Two coils will produce simultaneously in the both sides of same armature medial surface two suction, improve the force-bearing situation of armature, so just can guarantee that armature can deflection in action, make be connected with armature two to control the contact and can contact reliably or throw off, guarantee the service behaviour of relay.

Description of drawings

Fig. 1 is the utility model stereogram;

Fig. 2 is L-type yoke and two skeleton relative position stereograms;

Fig. 3 is two skeleton released state stereograms.

Embodiment

Below in conjunction with accompanying drawing and concrete execution mode, the utility model is described in further detail.

Fig. 1 is to shown in Figure 3, a kind of electromagnetic relay with twin coil, comprise base 1, a L-type yoke 2, an armature 3, one end of L-type yoke 2 is fixed on base 1, the middle and upper part of armature 3 is overlapped on L-type yoke 2 other ends, armature 3 can swing along overlapped points, the centre of L-type yoke 2 upper surfaces is provided with a projection 21, the centre of armature upper end also is provided with projection 31, between the projection 21 of the upper end of armature 3 projection 31 and L-type yoke 2 upper surfaces, extension spring 4 is housed, armature 3 middle and lower parts are connected with resilient contact 32, base 1, two skeletons 5 are housed in the space that L-type yoke 2 and armature 3 surround side by side, all be wound with the winding (not shown) on two skeletons 5, two windings are connected in series mutually, iron core 6 all is equipped with at the center of two skeletons 5, two iron cores 6 are corresponding with the medial surface of armature 3 near an end position of armature 3.

Two adjacent sides of skeleton 5 are connected with dovetail 52 by dovetail groove 51.

The downside of each skeleton 5 ends is provided with barb 53, and the upper surface of base 1 is provided with pilot hole and matches with described barb 53.

The structure of preferred two skeletons 5, shape, measure-alike, a side at each skeleton 5 two ends is provided with dovetail groove 51, opposite side is provided with dovetail 52.

Preferred described L-type yoke 2 is mutually vertical with the upper surface of base 1 with the end that base 1 fixes, and the central axis of two skeletons 5 parallels with the upper surface of base 1.

Be only below preferred embodiment of the utility model, the change that those skilled in the art does to be equal to by claim all falls into the protection range of this case.

Claims

1. electromagnetic relay with twin coil, comprise base, a L-type yoke, an armature, one end of L-type yoke is fixed on base, the middle and upper part of armature is overlapped on the L-type yoke other end, armature can swing along overlapped points, the centre of L-type yoke upper surface is provided with a projection, between the projection of the upper end of armature and L-type yoke upper surface, extension spring is housed, the middle and lower part of armature is connected with resilient contact, it is characterized in that: base, two skeletons are housed in the space that L-type yoke and armature surround side by side, all be wound with winding on two skeletons, two windings are connected in series mutually, iron core all is equipped with at the center of two skeletons, two iron cores are corresponding with the medial surface of armature near an end position of armature.

2. a kind of electromagnetic relay with twin coil according to claim 1, it is characterized in that: two adjacent sides of skeleton are connected with dovetail by dovetail groove.

3. a kind of electromagnetic relay with twin coil according to claim 1 is characterized in that: the downside of each skeleton end is provided with barb, and the upper surface of base is provided with pilot hole and matches with described barb.

4. a kind of electromagnetic relay with twin coil according to claim 1 is characterized in that: the centre of described armature upper end is provided with projection, and described extension spring is contained between the projection of armature upper end projection and L-type yoke upper surface.

5. a kind of electromagnetic relay with twin coil according to claim 1, it is characterized in that: described L-type yoke is mutually vertical with the upper surface of base with the end that base fixes, and the central axis of two skeletons parallels with the upper surface of base.

6. the described a kind of electromagnetic relay with twin coil of according to claim 1 to 5 any one is characterized in that: the structure of two skeletons, shape, measure-alike, a side at each skeleton two ends is provided with dovetail groove, opposite side is provided with dovetail.