CN207282410U

CN207282410U - D.C. contactor formula relay

Info

Publication number: CN207282410U
Application number: CN201721402373.7U
Authority: CN
Inventors: 任晨鸿; 黎欢乐; 刘滨峰
Original assignee: YUEQING BADA PHOTOELECTRIC TECHNOLOGY Co Ltd
Current assignee: YUEQING BADA PHOTOELECTRIC TECHNOLOGY Co Ltd
Priority date: 2017-10-27
Filing date: 2017-10-27
Publication date: 2018-04-27
Anticipated expiration: 2027-10-27

Abstract

The D.C. contactor formula relay of the utility model, by being provided with the shielded layer with magnetic screening action between the outer wall of circuit iron cup and the inner wall of shell, shielded layer effectively can prevent magnetic from leaking outside, it is inserted into again by the inner end for making static contact be located in shell in the openend of shielded layer, can effectively ensures that shielded layer has good magnetic screen and sealing function；In addition the end face of the inner end of static contact is made to be located between the open end of shielded layer and the open end of circuit iron cup, so that avoid producing unnecessary magnetic circuit between circuit iron cup and static contact, magnetic loss can not only so be reduced, magnetic utilization rate is significantly improved, and also can ensure that the stabilization in magnetic field, reliable ensure the quality of product.

Description

D.C. contactor formula relay

Technical field

It the utility model is related to relay technical field, and in particular to a kind of D.C. contactor formula relay.

Background technology

Contactor relay is mainly used for New-energy electric vehicle industry and its related industry field.Contactor type relay The operation principle of device is as follows：When to the control voltage of control coil input setting, electric current flows through control coil so as to control Electromagnetic field, the electromagnetic attraction that electromagnetic field produces the dynamic iron core of relay are produced around coil processed（Or it is screwed pipe power）More than iron Core spring（Or it is reaction spring）Counter-force when, dynamic iron core will be driven to be moved to static iron core direction, so dynamic iron core by after Linkage mechanism driving moving contact inside electric appliance is moved to static contact, moving contact is reliably attracted and then is connected with static contact Main circuit；When the control voltage inputted to control coil is less than setting, control coil inhales electromagnetism caused by dynamic iron core When power is less than the counter-force of iron core spring, dynamic iron core will drive moving contact and static contact point under the action of the counter-force of iron core spring From, and finally disconnect main circuit.

Contactor relay includes being used for the circuit iron cup for strengthening electromagnetic attraction, and then improves the utilization ratio of electromagnetism. In the prior art, iron cup in circuit is also directly installed on as magnetic masking layer to reduce magnetic leakage in the shell of relay, but by force Electromagnetic field often penetrate circuit iron cup and cause magnetic to leak outside, and the end of static contact can also be inserted into the opening of circuit iron cup In end, unnecessary magnetic circuit so will be produced between circuit iron cup and static contact, can not only reduce magnetic utilization rate, but also can be because of magnetic Field is unstable and product various problems is easily occurred, and product quality cannot be stablized, effectively ensure.In addition, existing time Road iron cup can also produce useless to electromagnetic attraction or have counteractive remanent magnetism, this can also significantly reduce magnetic utilization rate.

The content of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art, there is provided a kind of magnetic utilization rate is high, ensures product matter Measure reliable and stable D.C. contactor formula relay.

The D.C. contactor formula relay of the utility model, its technical solution are：

Including shell and static contact, the inner end installation of static contact is also equipped with circuit iron cup inside the shell, in shell, returns Shielded layer with magnetic screening action, the inner end insertion screen of static contact are installed between the outer wall of road iron cup and the inner wall of shell Cover in the openend of layer, and the end face of the inner end of static contact is located at the open end of shielded layer and the open end of circuit iron cup Between.

Wherein, control coil, oilless bearing and magnetic conductive board are installed, oilless bearing is built in control coil in circuit iron cup Interior, and the end face of oilless bearing and the inner bottom wall of circuit iron cup directly fit, the lateral surface of magnetic conductive board is interior with circuit iron cup Side wall directly fits；Electromagnetic field is produced around it after control coil is powered, electromagnetic field is successively through oilless bearing, circuit iron cup With returned after magnetic conductive board oilless bearing so that formed magnetic loop.

Wherein, the region of the end face of circuit iron cup face oilless bearing offers through hole.

Wherein, dynamic touch can be connected with respect to the dynamic iron core of its slip, dynamic iron core by axostylus axostyle by being provided with oilless bearing Head；Electromagnetic field produced by control coil can drive dynamic iron core to be moved towards static contact direction, so that moving contact can be with static contact Effectively it is attracted.

Wherein, the counter-force bullet part that dynamic iron core can be made to be slided towards the direction opposite with static contact is arranged with outside axostylus axostyle.

Wherein, dynamic iron core is supported in one end of counter-force bullet part, and the other end of counter-force bullet part supports magnetic conductive board.

Wherein, counter-force bullet part is spring.

Wherein, axostylus axostyle is arranged in dynamic iron core, and one end of axostylus axostyle and dynamic iron core are affixed, and the other end and the moving contact of axostylus axostyle are consolidated Connect.

The implementation of the utility model includes following technique effect：

The D.C. contactor formula relay of the utility model, by pacifying between the outer wall of circuit iron cup and the inner wall of shell Equipped with the shielded layer with magnetic screening action, shielded layer effectively can prevent magnetic from leaking outside, then by making static contact be located in shell Inner end insertion shielded layer openend in, can effectively ensure that shielded layer has good magnetic screen and sealing function；Separately The end face of the inner end of static contact is set to be located between the open end of shielded layer and the open end of circuit iron cup outside so that circuit Avoid producing unnecessary magnetic circuit between iron cup and static contact, can not only so reduce magnetic loss, significantly improve magnetic utilization rate, and It also can ensure that the stabilization in magnetic field, reliable ensure the quality of product.

Brief description of the drawings

Fig. 1 is the sectional view of the D.C. contactor formula relay of the utility model.

Fig. 2 is the structure diagram of the circuit iron cup of the utility model.

Reference numeral is：

1- shells；

2- circuits iron cup, 21- through holes；

3- control coils；

4- oilless bearings；

5- magnetic conductive boards；

6- shielded layers；

7- static contacts；

8- dynamic iron cores；

9- axostylus axostyles；

10- moving contacts；

11- supporting racks；

12- counter-force bullet parts.

Embodiment

The utility model is described in detail below in conjunction with embodiment and attached drawing, it should be pointed out that described Embodiment be intended merely to facilitate understanding to the utility model, and do not play any restriction effect to it.

Shown in Figure 1, D.C. contactor formula relay provided in this embodiment, its structure includes shell 1, in shell 1 Circuit iron cup 2 is installed, control coil 3, oilless bearing 4 and magnetic conductive board 5 are installed in circuit iron cup 2, oilless bearing 4 is built in In control coil 3, and the lower face of oilless bearing 4 and the inner bottom wall of circuit iron cup 2 directly fit, the lateral surface of magnetic conductive board 5 with The madial wall of circuit iron cup 2 directly fits, it is ensured that the magnetic resistance during magnetic field transmission is minimum；When logical certain electric to control coil 3 Electromagnetic field can be produced around it after pressure, electromagnetic field returns oil-free after oilless bearing 4, circuit iron cup 2 and magnetic conductive board 5 successively Bearing 4 and then formation magnetic loop.

Shown in Figure 1, relay further includes the bottom peace of static contact 7,7 inner end of static contact i.e. static contact 7 In shell 1.Shielded layer 6 with magnetic screening action is installed between the outer wall of circuit iron cup 2 and the inner wall of shell 1, is shielded Covering layer 6 can be made of un-conducted magnetic material, with that with common material and can cover paint in its outer brush screen and be made.Shielded layer 6 can have Effect prevents from draining to static contact 7 outside magnetic, even for stronger magnetic field, and then can improve magnetic utilization rate, reduce energy loss.It is logical Crossing makes the bottom of static contact 7 be inserted into the openend of shielded layer 6, can effectively ensure that shielded layer 6 has good magnetic screen And sealing function.Since the circuit iron cup 2 and shielded layer 6 of the utility model component combination independent as two use so that Circuit iron cup 2 no longer has magnetic screen and sealing function, the only individual components as magnetic field transmission in magnetic loop concurrently, and magnetic screen and Sealing is realized by shielded layer 6, so that the opposite shielded layer 6 that the height of circuit iron cup 2 can be done is lower, but compares magnetic conduction Plate 5 is slightly higher to ensure that circuit iron cup 2 is effectively bonded with magnetic conductive board 5 so that the lower face of static contact 7 is located at the opening of shielded layer 6 Between the open end of end face and circuit iron cup 2, namely it is so that the lower face of static contact 7 is located at the openend of circuit iron cup 2 On face, and there is certain spacing, so that do not overlapped in the horizontal direction between circuit iron cup 2 and static contact 7, so that It can effectively avoid producing unnecessary magnetic circuit between circuit iron cup 2 and static contact 7, so can not only effectively reduce magnetic loss, into One step improves magnetic utilization rate, and also can ensure that the stability and reliability in magnetic field in magnetic loop, and then reduces the quick of product Sensitivity, improves product quality, and causes product to be easier to assemble, and reduces cost.

Referring to Fig. 1, after certain voltage is led to control coil 3, electromagnetic field, electromagnetic field can be produced around control coil 3 Circulated in the magnetic loop formed by oilless bearing 4, circuit iron cup 2 and magnetic conductive board 5.Due to the lower end of oilless bearing 4 The inner bottom wall of circuit iron cup 2 is close in face, while the major part of electromagnetic field flows to magnetic loop, also has part electromagnetic field to flow to nothing The region for the circuit iron cup 2 that the lower face of oil bearing 4 is covered, referring to Fig. 2, the utility model is opened by the centre in the region Equipped with through hole 21, it becomes possible to avoid producing in the region useless to electromagnetic attraction or there is counteractive unnecessary remanent magnetism, and then Magnetic utilization rate is significantly improved, the region of the lower face of 2 face oilless bearing 4 of circuit iron cup offers through hole 21.

Referring to Fig. 1, dynamic iron core 8 can be arranged in respect to the dynamic iron core 8 of its slip, axostylus axostyle 9 by being provided with oilless bearing 4 Interior, the lower end of axostylus axostyle 9 and dynamic iron core 8 are affixed, and the upper end of axostylus axostyle 9 and moving contact 10 are affixed.Iron can be made by being arranged with outside axostylus axostyle 9 The counter-force bullet part 12 of the tendency toward sliding downward of core 8, counter-force bullet part 12 is spring.Support dynamic iron core 8, counter-force in the upper end of counter-force bullet part 12 Support magnetic conductive board 5 in the lower end of bullet part 12.After certain voltage is applied to control coil 3, electric current is by control coil 3 and in its week Enclose generation electromagnetic field, electromagnetic field in the magnetic loop internal circulation flow formed by oilless bearing 4, circuit iron cup 2 and magnetic conductive board 5, And then screwed pipe power is produced to dynamic iron core 8, so as to promote 8 upward sliding of iron core and compress counter-force bullet part 12, dynamic iron core 8 passes through axis again Bar 9 drives to move on moving contact 10 and is reliably attracted with static contact 7, realizes the connection of main circuit.In the present embodiment, static contact 7 is solid It is scheduled on supporting rack 11, supporting rack 11 is installed in shell 1, has certain distance between static contact 7 and moving contact 10, quiet to ensure Air between contact 7 and moving contact 10 will not be worn by high pressure mistakenly hit.After control coil 3 powers off, cause because it loses electric current Electromagnetic field disappears, and dynamic iron core 8 will be moved downward to reset under the effect of the elastic force of counter-force bullet part 12, so with moving contact 10 with it is quiet Contact 7 separates and most main circuit disconnects at last.

In the present embodiment, circuit iron cup 2 is using the shaping of pure iron drawing process.

Finally it should be noted that above example is only illustrating the technical solution of the utility model, rather than to this reality With the limitation of novel protected scope, although being explained with reference to preferred embodiment to the utility model, this area it is general Lead to it will be appreciated by the skilled person that can be to the technical solution of the utility model technical scheme is modified or replaced equivalently, without departing from this The spirit and scope of utility model technical solution.

Claims

1. D.C. contactor formula relay, including shell and static contact, inside the shell, its feature exists for the inner end installation of static contact In：Circuit iron cup is also equipped with shell, is provided between the outer wall of circuit iron cup and the inner wall of shell with magnetic screening action Shielded layer, in the openend of the inner end insertion shielded layer of static contact, and the end face of the inner end of static contact is located at shielded layer Open end and circuit iron cup open end between.

2. D.C. contactor formula relay according to claim 1, it is characterised in that：Control line is installed in the iron cup of circuit Circle, oilless bearing and magnetic conductive board, oilless bearing are built in control coil, and the end face of oilless bearing and circuit iron cup is interior Bottom wall directly fits, and the madial wall of the lateral surface and circuit iron cup of magnetic conductive board directly fits；In its week after control coil is powered Generation electromagnetic field is enclosed, electromagnetic field returns oilless bearing after oilless bearing, circuit iron cup and magnetic conductive board and then forms magnetic successively Circuit.

3. D.C. contactor formula relay according to claim 2, it is characterised in that：Circuit iron cup face oilless bearing The region of end face offers through hole.

4. the D.C. contactor formula relay according to Claims 2 or 3, it is characterised in that：Energy is installed in oilless bearing The dynamic iron core of its enough opposite slip, dynamic iron core are connected with moving contact by axostylus axostyle；Electromagnetic field produced by control coil can drive Dynamic iron core is moved towards static contact direction, so that moving contact can be effectively attracted with static contact.

5. D.C. contactor formula relay according to claim 4, it is characterised in that：Iron can be made by being arranged with outside axostylus axostyle The counter-force bullet part that core is slided towards the direction opposite with static contact.

6. D.C. contactor formula relay according to claim 5, it is characterised in that：Support dynamic iron in one end of counter-force bullet part Core, the other end of counter-force bullet part support magnetic conductive board.

7. the D.C. contactor formula relay according to claim 5 or 6, it is characterised in that：Counter-force bullet part is spring.

8. D.C. contactor formula relay according to claim 4, it is characterised in that：Axostylus axostyle is arranged in dynamic iron core, axis One end of bar and dynamic iron core are affixed, and the other end and moving contact of axostylus axostyle are affixed.