CN201655689U

CN201655689U - Yoke iron for polarizing electromagnetic relay and polarization electromagnetic relay

Info

Publication number: CN201655689U
Application number: CN2010202153418U
Authority: CN
Inventors: 中西弘行; 周小玲
Original assignee: Panasonic Industrial Devices Beijing Co Ltd
Current assignee: Panasonic Industrial Devices Beijing Co Ltd
Priority date: 2010-06-04
Filing date: 2010-06-04
Publication date: 2010-11-24
Anticipated expiration: 2020-06-04

Abstract

The utility model provides a yoke iron for polarizing an electromagnetic relay and an polarization electromagnetic relay, wherein the side surface of one end of the yoke iron for polarizing the electromagnetic relay is welded with a magnet baffle plate, the polarization electromagnetic relay comprises a coil part, a frame body and two yoke irons, the yoke irons are relatively arranged on the frame body, an iron core part is penetrated in the coil part, the iron core part comprises a fulcrum end and a swing end, the two yoke irons comprise clamp ends and absorption ends, the fulcrum end of the iron core part is clamped between the clamp ends of the two yoke irons, the swing ends of the iron core part are held between the absorption ends of the two yoke irons and are absorbed with the side surface of the absorption end of one of the yoke iron, and an absorption side surface of the absorption ends of the two yoke irons and the swing ends of the iron core parts is welded with the magnet baffle plate. Compared with the prior art, the absorption ends of the yoke irons has steady magnet baffle effect, the clamp ends of the yoke irons avoid unnecessary magnetic force loss, the production process of the yoke irons is simple simultaneously, and the reject ratio and the production cost of products are reduced.

Description

The yoke and the polarity electromagnetic relay that are used for polarity electromagnetic relay

Technical field

The utility model relates to the electromagnetic relay technical field, relates in particular to a kind of polarity electromagnetic relay that is used for the yoke of polarity electromagnetic relay and uses described yoke.

Background technology

As shown in Figure 1, polarity electromagnetic relay comprises parts such as support body 12, two U type yokes 13, coil component 2, iron core member 3, driver card 4, and two U type yokes 13 relatively insert inner being equipped with in the support body 12 of permanent magnet.The two ends of U type yoke 13 are respectively joint end 131 and absorption end 132, the two ends of iron core member are respectively support end 31 and swinging end 32, iron core member 3 passes from coil component 2, iron core member 3 plays the effect of armature simultaneously, the support end 31 of iron core member 3 be stuck between the joint end 131 of two U type yokes 13 and with the side absorption of the absorption end 132 of one of them U type yoke, constitute closed magnetic circuit between iron core member 3 and its adsorbed U type yoke 13.Swinging end 32 at iron core member 3 is provided with the driver card 4 that is used to drive the relevant contacts switching.Under the situation of not switching on, the swinging end 32 of iron core member 3 under the magneticaction of permanent magnet with the side absorption of the absorption end 132 of one of them U type yoke 13; Under the energising situation, coil generates an electromagnetic field, and is subjected to the effect of electromagnetic field, and the absorption end 132 of the U type yoke 13 that swinging end 32 and its of iron core member 3 contacted separates, and is flapped toward the absorption end 132 of another U type yoke 13 and is adsorbed on its side.The swinging end 32 of iron core member 3 can be swung between the absorption end 132 of two U type yokes 13, thereby drives driver card 4 motions, changes the open and-shut mode of contact.

In order to make relay be more conducive to action and to discharge, need weaken the magnetic force between the absorption end 132 of the swinging end 32 of iron core member 3 and U type yoke 13, as shown in Figure 2, usually the means of taking in the prior art to increase every magnetic coating on the outer surface of the absorption end 132 of U type yoke solve this technical problem, but prior art has following defective:

1, when coating is handled, because process technology limit, the two ends of U type yoke are all applied, and the joint end 131 of U type yoke does not need to apply, can increase the magnetic resistance between the support end 31 of the joint end 131 of U type yoke and iron core member 3 like this, influence the characteristic of relay;

2, coating layer thickness is had strict required precision, this brings certain difficulty just for the actual production technology controlling and process, causes bad generation.

3, because the coating layer thickness and the degree of depth are had strict required precision, the coating complex treatment process, cost is higher.

The utility model content

The technical problems to be solved in the utility model is to reduce the magnetic force loss of polarity electromagnetic relay magnetic circuit, improves its performance; Simplify the technology controlling and process requirement of yoke, reduce the fraction defective of product, reduce production costs simultaneously every the magnetic treatment process.

In order to address the above problem, this use is novel to provide a kind of yoke that is used for polarity electromagnetic relay, it is characterized in that the side of an end of described yoke is welded with antifreeze plate.

As preferably, described antifreeze plate is nonmagnetic sheet metal.

As preferably, the U type that is shaped as of described yoke.

This use is novel also to provide a kind of polarity electromagnetic relay simultaneously, comprise coil component, two yokes setting up relatively on support body and the described support body, be equipped with iron core member in the described coil component, described iron core member comprises support end and swinging end, two described yokes comprise joint end and absorption end, the support end of described iron core member is connected between the joint end of two described yokes, the swinging end of described iron core member be contained between the absorption end of two described yokes and with the side absorption of the absorption end of one of them yoke, it is characterized in that the absorption end of two described yokes is welded with antifreeze plate with the side that described iron core member swinging end adsorbs mutually.

Preferably, the U type that is shaped as of described yoke.

The beneficial effects of the utility model are, take antifreeze plate that the absorption end of yoke is carried out every magnetic, every the magnetic effect stability, easier action of polarity electromagnetic relay and release, and reduced magnetic force loss unnecessary between the support end of the joint end of yoke and iron core member.It is simple to have production technology in addition, reduces fraction defective, reduces the advantage of product cost.

Description of drawings

Fig. 1 is the decomposing schematic representation (not belt coil) of prior art polarity electromagnetic relay;

Fig. 2 is the structural representation of the yoke of polarity electromagnetic relay shown in Figure 1;

Fig. 3 is the decomposing schematic representation (not belt coil) of polarity electromagnetic relay of the present utility model;

Fig. 4 is the decomposing schematic representation of the yoke of polarity electromagnetic relay shown in Figure 3;

Fig. 5 is the schematic perspective view (not belt coil) of polarity electromagnetic relay of the present utility model;

Fig. 6 is the schematic top plan view of Fig. 5.

Description of reference numerals

2 coil components, 3 iron core members, 31 support ends, 32 swinging ends

4 driver cards, 12 support body 13U type yokes, 131 joint ends

132 absorption ends, 14 antifreeze plates

Embodiment

Describe execution mode of the present utility model with reference to the accompanying drawings in detail.

To shown in Figure 6, polarity electromagnetic relay of the present utility model comprises support body 12, two U type yokes 13, iron core member 3, driver card 4 etc. as Fig. 3; Two U type yokes 13 relatively insert inner being equipped with in the support body 12 of permanent magnet.One end of U type yoke 13 is a joint end 131, the other end is absorption end 132, iron core member 3 comprises fulcrum 31 and swinging end 32, the swinging end 31 of iron core member 3 passes coil component 2, sheathedly on the position of iron core member 3 then be used to drive the driver card 4 that relevant contacts opens and closes near swinging end 31, pack at last in the support body 12, the support end 31 of iron core member 3 is stuck between the joint end 131 of two U type yokes 13, the swinging end 32 of iron core member 3 is adsorbed on the side of absorption end 132 of one of them U type yoke 13, forms closed magnetic circuit between the U type yoke 13 of iron core member 3 and its absorption.

Under the situation of not switching on, the swinging end 32 of iron core member 3 under the magneticaction of permanent magnet with the side absorption of the absorption end 132 of one of them U type yoke 13; Under the energising situation, coil generates an electromagnetic field, and is subjected to the effect of electromagnetic field, and the swinging end 32 of iron core member 3 separates with the absorption end 132 of its adsorbed U type yoke 13, is flapped toward the absorption end 132 of another U type yoke 13 and is adsorbed on its side.The swinging end 32 of iron core member 3 can be swung between the absorption end 132 of two U type yokes 13, thereby drives driver card 4 motions, changes the open and-shut mode of contact.

In order to make this polarity electromagnetic relay be beneficial to action and to discharge, need weaken the attraction between the swinging end 32 of the absorption end 132 of U type yoke 13 and iron core member 3.

As shown in Figure 4, the absorption end of U type yoke 13 of the present utility model 132 is provided with antifreeze plate 14 with the side of swinging end 32 absorption of iron core member 3, and antifreeze plate 14 can be that non magnetic sheet metal is such as nonmagnetic stainless steel substrates.Antifreeze plate 14 can adopt on the absorption end 132 that laser welding method is welded on U type yoke 13 and the side that iron core member 3 adsorbs mutually.Antifreeze plate 14 can play separated magnetic effect, thereby has reduced the attraction between the swinging end 32 of the absorption end 132 of U type yoke 13 and iron core member 3.Compare with applying coating in the prior art,,, improved the performance of polarity electromagnetic relay every the magnetic effect stability because the thickness of antifreeze plate 14 is controlled easily.Avoided the joint end 131 of U type yoke 13 is carried out unnecessary processing, made that the magnetic circuit between the support end 31 of joint end 131 and iron core member 3 of U type yoke 13 is communicated with well, do not had unnecessary magnetic force loss.In addition, methods such as employing laser welding can be welded to antifreeze plate 14 side of the absorption end 132 of U type yoke 13, and production technology is simple, has reduced the product fraction defective, has also reduced product cost simultaneously.

Certainly; the above is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection range of the present utility model.

Claims

1. a yoke that is used for polarity electromagnetic relay is characterized in that, the side of an end of described yoke is welded with antifreeze plate.

2. the yoke that is used for polarity electromagnetic relay as claimed in claim 1 is characterized in that, described antifreeze plate is nonmagnetic sheet metal.

3. the yoke that is used for polarity electromagnetic relay as claimed in claim 1 is characterized in that, the U type that is shaped as of described yoke.

4. polarity electromagnetic relay, comprise coil component, two yokes setting up relatively on support body and the described support body, be equipped with iron core member in the described coil component, described iron core member comprises support end and swinging end, two described yokes comprise joint end and absorption end, the support end of described iron core member is connected between the joint end of two described yokes, the swinging end of described iron core member be contained between the absorption end of two described yokes and with the side absorption of the absorption end of one of them yoke, it is characterized in that the absorption end of two described yokes is welded with antifreeze plate with the side that described iron core member swinging end adsorbs mutually.

5. polarity electromagnetic relay as claimed in claim 4 is characterized in that, described antifreeze plate is nonmagnetic sheet metal.

6. as claim 4 or 5 described polarity electromagnetic relays, it is characterized in that the U type that is shaped as of two described yokes.