CN1838360A

CN1838360A - Electromagnetic relay

Info

Publication number: CN1838360A
Application number: CN 200610050199
Authority: CN
Inventors: 王兆春; 忻武斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-05
Filing date: 2006-04-05
Publication date: 2006-09-27

Abstract

This invention relates to an electromagnetism relay, which is composed of the electromagnetism system, connection system, coil frame that fixes the two related systems, base plate and cage, wherein the electromagnetism and the connection system are composed of the contact reed, iron core, coil, yoke, gag bit, movable contact, static contact, down-lead and so on, and the base plate is divided into two rooms that are separate mutually, one room is arranged with the electromagnetism system composed of the iron core, coil, yoke, gag bit, the other is arranged with the connection system composed of the movable contact, static contact, static reed, and one end of the gag bit connects with the movable reed vertically. The advantage of this invention is that the volume is small, power is large, and withstanding voltage capability is strong.

Description

Electromagnetic relay

Technical field

The present invention relates to a kind of electromagnetic relay.

Background technology

Relay is a kind of electronic control device; it has control system and Be Controlled system; usually be applied in the automatic control circuit; it is actually a kind of " automatic switch " that removes to control big electric current with less current, so play effects such as automatic adjusting, safeguard protection, change-over circuit in circuit.

Electromagnetic system and wiring system that existing electromagnetic relay is made up of iron core, coil, yoke, armature, contact reed, normally opened contact and normally-closed contact, lead wire etc. and the bobbin of fixing these electromagnetic systems and wiring system, base and cover are formed, electromagnetic system adopts circular iron core and bobbin, and volume is bigger.And because wiring system and electromagnetic system are arranged in the space and not rationally is provided with, so wiring system and electromagnetic system are influential each other, cause that voltage endurance capability is not high, power is little.

Summary of the invention

Technical problem to be solved by this invention is to overcome the above-mentioned defective of prior art and a kind of electromagnetic relay is provided, and makes that its volume is littler, power is higher, voltage endurance capability is bigger.

The present invention solves the problems of the technologies described above the technical scheme that is adopted:

Electromagnetic relay, by the contact reed, iron core, coil, yoke, armature, moving contact and fixed contact, the electromagnetic system and the wiring system of compositions such as lead-in wire and fix the bobbin of these electromagnetic systems and wiring system, pedestal and case are formed, it is characterized in that: described pedestal is divided into two spaces that isolate mutually, a space mounting is by iron core, coil, yoke, the electromagnetic system that armature is formed, another space mounting is by moving contact, movable contact spring and fixed contact, the wiring system that static contact spring piece is formed, armature one end in the electromagnetic system is by movable contact spring vertical be connected of push card with wiring system.

Above-mentioned iron core and skeleton all are flat, can dwindle the volume of whole electromagnetic relay so greatly.

Compared with prior art, the invention has the advantages that:

1, according to the operation principle of relay, the realization of its action must overcome moving spring counter-force by certain magneticaction, but can produce bigger magnetic resistance in the bad space that the magnetic circuit assembling process causes, and has reduced actual magnetic force.Existing relay often reduces the influence of relevant magnetic resistance by the number of turn that improves coil power or raising coil, owing to adopted highly sensitive coil, can't carry out the magnetic resistance compensation by the method that improves coil power, need increase winding space and improve coil turn, one aspect of the present invention is by reducing the wall thickness dimension of skeleton part for this reason, increase winding space, simultaneously when the design of magnetic circuit assembly vital part iron core, change general circular configuration, adopt the flat structure, reduced lateral dimension, improved the winding space of coil, therefore the more compact structure of whole electromagnetic relay, volume is littler, weight is lighter.

2, because pedestal comprises two relatively independent spaces and can be by the Shooting Technique one-shot forming respectively, one side hookup wire coil assembly, one side is installed contact assembly, two spaces are interlaced, increase the space creepage distance, select withstand voltage height, insulation property material preferably for use, wiring system and electromagnetic system are isolated by pedestal, can reach the dielectric withstanding voltage of 4400V in less space.

This electromagnetic relay volume is little, power is big, voltage endurance capability is strong, the low only 200mW of its coil power dissipation is fit to high-density installation and uses, so not only economized on electricity but also safety, be small household appliances, air-conditioning, the refrigerator automatic control system main product of regenerating at present and in the future, its versatility is very strong simultaneously.

Description of drawings

Fig. 1 is the front view of the embodiment of the invention.

Fig. 2 is the structural representation of the embodiment of the invention.

Fig. 3 omits explosive view behind the shell for embodiment of the invention electromagnetic relay.

Fig. 4 is the annexation figure of embodiment of the invention yoke, stage clip and armature.

Embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

As shown in Figure 1 and Figure 2, a kind of electromagnetic relay, form by electromagnetic system and wiring system, pedestal and case, described pedestal 2 is divided into two spaces 21,22 that isolate mutually, the electromagnetic system of being made up of iron core 6, coil 8, yoke 10, armature 5, bobbin 9 is installed in a space 21, the wiring system of being made up of moving contact 11, movable contact spring 12 and fixed contact 14, static contact spring piece 13 is installed in another space 22, and an end 51 of the armature 5 in the electromagnetic system is by movable contact spring 11 vertical are connected of push card 7 with wiring system.

Be fixed on an end of quiet contact chip 13 by fixed contact 14, quiet contact group on the formation, go up outside quiet contact chip 13 other ends 131 protuberate basic units 2, center fixed is on base 2, the moving contact 12 relative with fixed contact 13 is fixed on the moving contacting plate 11, and also outside the protuberate basic unit 2, center fixed is on base 2 for moving contacting plate 11 1 ends 112, constitute wiring system, see Fig. 3.

Bobbin 9 outer coilings 8, interiorly pass an end and yoke 10 rivetings from the centre by iron core 6, the opposite side of yoke 10 connects armature 5 by stage clip 4, armature 5 other ends vertically connect push card 7, push card 7 other ends 71 pass in the hole 111 of moving spring 11 movable ends, two grooves at bobbin 9 are equipped with two lead wire 1, constitute electromagnetic system, see Fig. 3.

Above-mentioned electromagnetic system and wiring system are after install in two side spaces 21,22 of pedestal 2, and cover is gone up shell 3 again, has just constituted electromagnetic relay.

On the above-mentioned push card 7 gathering sill 72 is arranged, its insert pedestal 2 corresponding protruding 23 on, can better guide push card 7 like this, more smooth when electromagnetic system attracts armature 5 to drive push card 7 to promote moving spring 11, force direction is more accurate.

Above-mentioned push card 7 heads are pointed 71, pass in the movable contact spring flange hole 111.Because flange is adopted in hole 111, the push card 7 and the friction in the hole 111 of movable contact spring 11 are reduced, so push card 7 can not seen Fig. 3 because of the moving spring limit 11 that rubs produces dust.

Above-mentioned stage clip 4 one end band lugs 41 just buckle in the hole 101 of yoke 10, and the other end is with holes 42, insert in the salient point 53 of armature, so yoke 10 and armature 5 are seen Fig. 4 by stage clip 4 tight and flexible linking together.

Above-mentioned armature 5 other ends 51 insert in the groove 73 of push card 7, and are inserted in the hole 52 of armature 5 by the hook 74 of push card 7, and armature 5 and push card 7 are fixing more firm like this, see Fig. 3.

Pedestal 2 is by the Shooting Technique moulding, because two 21,22 in relatively independent spaces have at interval, two spaces are interlaced, increased the space creepage distance, increased the proof voltage ability.

Because the operation principle of electromagnetic relay is known by people, therefore discuss no longer in detail at this.

Claims

1, electromagnetic relay, by the contact reed, iron core, coil, yoke, armature, moving contact and fixed contact, the electromagnetic system and the wiring system of compositions such as lead-in wire and fix the bobbin of these electromagnetic systems and wiring system, pedestal and case are formed, it is characterized in that: described pedestal is divided into two spaces that isolate mutually, a space mounting is by iron core, coil, yoke, the electromagnetic system that armature is formed, another space mounting is by moving contact, movable contact spring and fixed contact, the wiring system that static contact spring piece is formed, an end of the armature in the electromagnetic system is by movable contact spring vertical be connected of push card with wiring system.

2, electromagnetic relay according to claim 1 is characterized in that: described iron core and skeleton all are flat.

3, electromagnetic relay according to claim 1 and 2 is characterized in that: on the described push card gathering sill is arranged, it is inserted on the corresponding projection of pedestal.

4, electromagnetic relay according to claim 1 and 2 is characterized in that: described push card head becomes pointed, inserts in the flange hole of movable contact spring.

5, electromagnetic relay according to claim 3 is characterized in that: described push card head becomes pointed, inserts in the flange hole of movable contact spring.

6, electromagnetic relay according to claim 1 and 2 is characterized in that: described stage clip one end band lug, just buckle in the hole of yoke, and the other end is with holes, inserts in the salient point of armature.

7, electromagnetic relay according to claim 3 is characterized in that: described stage clip one end band lug, just buckle in the hole of yoke, and the other end is with holes, inserts in the salient point of armature.

8, electromagnetic relay according to claim 4 is characterized in that: described stage clip one end band lug, just buckle in the hole of yoke, and the other end is with holes, inserts in the salient point of armature.

9, electromagnetic relay according to claim 5 is characterized in that: described stage clip one end band lug, just buckle in the hole of yoke, and the other end is with holes, inserts in the salient point of armature.

10, electromagnetic relay according to claim 5 is characterized in that: the described armature other end inserts in the groove of push card, and is inserted in the hole of armature by the hook of push card.