CN209561302U - A kind of spring return type electromagnetic relay - Google Patents

Abstract

The utility model relates to relay technical fields, in particular disclose a kind of spring return type electromagnetic relay, including insulating body, electromagnet, dynamic point block and two static terminals, electromagnet, two static terminals are all set in insulating body；It further include reset spring and armature, electromagnet has yoke, yoke includes the first iron plate and the second iron plate from the bending of the first iron plate, one end of armature is rotatably dispose in the one end of the second iron plate far from the first iron plate, the both ends of reset spring are separately connected one end of the first iron plate and armature, and dynamic point block is connected to the other end of armature；In the use process of relay, electromagnet attracts related dynamic block contact two static terminals of conducting of armature, after electromagnet power loss, reset spring drives armature to rotate reset relative to yoke, it realizes the separation of dynamic point block and static terminal and disconnects the conducting between two static terminals, contact adhesion caused by avoiding because of armature reset drives power deficiency, promotes the service performance of relay.

Description

A kind of spring return type electromagnetic relay

Technical field

The utility model relates to relay technical fields, in particular disclose a kind of spring return type electromagnetic relay.

Background technique

Relay is various control circuits commonly one of basic accessory, relay it is many kinds of, electromagnetic relay is For a kind of common relay, the power mechanism of electromagnetic relay mainly includes electromagnet, fixing terminal and flexible terminal, after In the use process of electric appliance, electromagnet obtains electric generation magnetic attraction, and magnetic attraction attracts flexible terminal that flexible terminal is connected Fixing terminal.After electromagnet power loss, resetted using the flexible drive flexible terminal of flexible terminal itself；But due to elasticity The elastic force of terminal itself is limited, and after electromagnet power loss, flexible terminal tends not to normal reset and causes flexible terminal Contact adhesion occurs between fixing terminal, relay is caused to be unable to normal use.

Utility model content

In order to overcome shortcoming and defect existing in the prior art, it is multiple that the purpose of this utility model is to provide a kind of springs Position formula electromagnetic relay, in the use process of relay, electromagnet attracts related dynamic block contact two static sides of conducting of armature Son, after electromagnet power loss, reset spring drives armature to reset with respect to yoke rotation, realizes the separation of dynamic block and static terminal and breaks The conducting between two static terminals is opened, the contact adhesion caused by avoiding because of armature reset drives power deficiency promotes relay Service performance.

To achieve the above object, a kind of spring return type electromagnetic relay of the utility model, including insulating body, electromagnetism Iron, dynamic point block and two static terminals, electromagnet, two static terminals are all set in insulating body, and electromagnet is for driving dynamic point block Mobile, dynamic mobile block is connected two static terminals or separates the conducting disconnected between two static terminals with static terminal；Also wrap Reset spring and armature are included, electromagnet has yoke, and yoke includes the first iron plate and the second iron plate from the bending of the first iron plate, rank One end of iron is rotatably dispose in the one end of the second iron plate far from the first iron plate, the both ends of reset spring be separately connected the first iron plate and One end of armature, dynamic point block are connected to the other end of armature, and electromagnet is used to attract the other end of armature, and reset spring is for driving Moving armature resets.

Preferably, the insulating body is equipped with stop catch plate, two static terminals are located at the same side of stop catch plate, and dynamic point block is located at Between stop catch plate and static terminal, stop catch plate supports front contact block for block.

Preferably, the spring return type electromagnetic relay further includes elastic piece, one end of elastic piece is connected to armature, bullet Property piece the other end be connected to the middle part of dynamic point block, the both ends of dynamic point block are respectively used to contact two static terminals of conducting.

Preferably, the two sides of the free end of second iron plate are respectively equipped with axis piece, the two sides of armature one end are respectively set Jagged slot, the axis piece of the second iron plate two sides rotates respectively to be located in the gap slot of armature two sides, and one end of armature is located at the Between the axis piece of two iron plate two sides, the two sides of axis piece away from each other are the resigning inclined-plane for cooperating armature to rotate.

Preferably, first iron plate is respectively equipped with fixinig plate far from the two sides of second iron plate one end, fixinig plate is via spiral shell Nail is fixedly mounted on insulating body, and the first iron plate or the second plate body are equipped with the first hanging strip, and one end of armature is equipped with the second hanging strip, First hanging strip, the second hanging strip are respectively positioned between the fixinig plate of the first iron plate two sides, and the both ends of reset spring are respectively connected to first Hanging strip and the second hanging strip.

Preferably, first hanging strip, the second hanging strip are equipped with limit french drain, limit french drain is hung from the first hanging strip, second The two sides of item away from each other are recessed to be formed, and the both ends of reset spring are located in respectively in the limit french drain of the first hanging strip and second hangs In the limit french drain of item.

Preferably, the electromagnet further includes skeleton, coil and iron core, skeleton is between yoke and insulating body, iron Core is located in skeleton, and coil is set to skeleton and is arranged around iron core, and one end of iron core is connected to the first iron plate, iron core it is another One end is used to attract the other end of armature.

Preferably, first iron plate is equipped with shrinkage pool and protrudes into multiple ribs in shrinkage pool, the center of rib and shrinkage pool Axis is arranged in parallel, and multiple ribs are arranged around the central axis of shrinkage pool, and one end of iron core is equipped with riveter portion, and riveter portion is riveted to In the shrinkage pool of first iron plate, rib is used to contradict the outer surface in riveter portion.

Preferably, the static terminal includes holding parts and from junction made of holding parts bending, holding parts are set to absolutely Edge ontology, holding parts are fixed on insulating body via screw, and the free end of holding parts is equipped with the static contact for moved end to be connected, Junction is equipped with the hollow cylinder protruded into insulating body, and extraneous conductor is for being located in hollow cylinder.

Preferably, the spring return type electromagnetic relay further includes plastic casing, plastic casing is sheathed on the outer of insulating body Side, plastic casing are equipped with the blind chamber of accommodating for being installed with electromagnet, dynamic point block and static terminal；Plastic casing is removably set there are two forever Magnet, two permanent magnets are located at the outside of plastic casing, the polarity of two permanent magnets side close to each other on the contrary, moved end with it is quiet It is located between two permanent magnets at the contact conducting of terminal.

The utility model has the beneficial effects that electromagnet attracts the related dynamic block of armature to connect in the use process of relay Touching two static terminals of conducting, after electromagnet power loss, reset spring drives armature to reset with respect to yoke rotation, realize dynamic block with it is quiet The separation of terminal and disconnect the conducting between two static terminals, avoid because the contact caused by armature reset drives power is insufficient is viscous Even, the service performance of relay is promoted.

Detailed description of the invention

Fig. 1 is the schematic perspective view of the utility model；

Fig. 2 is the decomposition texture schematic diagram of the utility model；

Fig. 3 is the decomposition texture schematic diagram at another visual angle of the utility model；

Fig. 4 is the structural schematic diagram of the yoke of the utility model.

Appended drawing reference includes:

1-3-the static terminal of block of insulating body 1 2-dynamic

4-reset spring 5-armature, 6-yokes

7-the first iron plate 9-stop catch plate of the 8-the second iron plate

11-elastic piece 12-axis, 13-gap slots of piece

14-fixinig plate the 16-the second hanging strips of the 15-the first hanging strip

17-limit 18-skeleton of french drain, 19-coils

21-iron core 22-shrinkage pool, 23-ribs

24-riveter portion 25-holding parts, 26-junctions

27-static contact 28-hollow cylinder, 29-plastic casings

Blind 32-permanent magnet of chamber, the 33-accommodating blind hole of 31-accommodatings

34-snap-ons.

Specific embodiment

For the ease of the understanding of those skilled in the art, the utility model is made below with reference to examples and drawings further Explanation, the content that embodiment refers to not is restriction to the utility model.

Shown in please referring to Fig.1 to Fig.4, a kind of spring return type electromagnetic relay of the utility model, including insulating body 1, electromagnet, dynamic point block 2 and two static terminals 3, electromagnet, two static terminals 3 are arranged on insulating body 1, and electromagnet is used Mobile in the dynamic point block 2 of driving, dynamic mobile block 2, which is connected two static terminals 3 or separates with static terminal 3, disconnects two static terminals Conducting between 3；It further include reset spring 4 and armature 5, electromagnet has yoke 6, and yoke 6 is substantially L-shaped, and yoke 6 includes the One iron plate 7 and the second iron plate 8 bent from the first iron plate 7, the first iron plate 7 are vertically arranged with the second iron plate 8, one end of armature 5 It is rotatably arranged on the one end of the second iron plate 8 far from the first iron plate 7, the both ends of reset spring 4 are separately connected the first iron plate 7 and rank One end of iron 5, dynamic point block 2 are connected on the other end of armature 5, and electromagnet is used to attract the other end of armature 5, reset spring 4 For driving armature 5 to reset.

In the use process of relay, electromagnet attracts related dynamic block 2 contact two static terminals 3 of conducting of armature 5, electricity After magnet power loss, reset spring 4 drives armature 5 to rotate reset relative to yoke 6, realizes the separation of dynamic point block 2 and static terminal 3 and breaks The conducting between two static terminals 3 is opened, the contact adhesion caused by avoiding because of driving force deficiency when armature 5 resets promotes relay The service performance of device.

Stop catch plate 9 is provided on the insulating body 1, two static terminals 3 are located at the same side of stop catch plate 9, move point block 2 Between stop catch plate 9 and static terminal 3, stop catch plate 9 supports front contact block 2 for block.After electromagnet power loss, reset spring 4 is driven Dynamic homing stops dynamic point block 2 using stop catch plate 9, avoids the related dynamic point of armature 5 until dynamic point block 2 is contradicted in stop catch plate 9 Block 2 excessively reset and can not normal use.

The spring return type electromagnetic relay further includes elastic piece 11, the substantially rectangular thin slice of elastic piece 11, elastic piece 11 one end is connected to armature 5, and the other end of elastic piece 11 is connected on the middle part of dynamic point block 2, and the both ends of dynamic point block 2 are used respectively Two static terminals 3 are connected in contact.Electromagnet obtain it is electric after, electromagnet attract armature 5 make armature 5 with respect to yoke 6 rotate, rotate Armature 5 via related dynamic block 2 contact two static terminals 3 of conducting of elastic piece 11, when dynamic point block 2 contact two static terminals of conducting When 3, flexible deformation occurs for elastic piece 11, makes dynamic point 2 firm contact of block conducting static terminal 3 using the elastic force of elastic piece 11, It avoids relay from being shaken or unexpectedly touch and leads point block 2 and separated with 3 intermittence of static terminal.

The two sides of the free end of second iron plate 8 are respectively equipped with axis piece 12, and the two sides of 5 one end of armature are respectively arranged with scarce Mouth slot 13, the axis piece 12 of 8 two sides of the second iron plate rotate be installed in the gap slot 13 of 5 two sides of armature respectively, one end position of armature 5 Between the axis piece 12 of 8 two sides of the second iron plate, accurate limit is carried out to armature 5 using the cooperation of axis piece 12 and gap slot 13, really Protecting relay can with normal table use, and the two sides of axis piece 12 away from each other are the resigning inclined-plane for cooperating armature 5 to rotate, During armature 5 is rotated relative to yoke 6, the outer surface of axis piece 12 is avoided to contradict the cell wall of gap slot 13 and lead to armature 5 It can not normal rotation.

First iron plate 7 is respectively equipped with fixinig plate 14 far from the two sides of 8 one end of the second iron plate, and fixinig plate 14 is via screw It is fixedly mounted on insulating body 1, in actual use, since reset spring 4 drives the reversion of armature 5 to reset, therefore the reset of armature 5 Power is very big, is tightly secured on insulating body 1 using screw through yoke 6, yoke 6 is avoided to fall off from insulating body 1；First iron Plate 7 or the second plate body are equipped with the first hanging strip 15, and one end of armature 5 is equipped with the second hanging strip 16, and the first hanging strip 15, the second hanging strip 16 are Between the fixinig plate 14 of 7 two sides of the first iron plate, the both ends of reset spring 4 are respectively connected to the first hanging strip 15 and the second hanging strip 16；In the present embodiment, the quantity of reset spring 4 is two, and two reset springs 4 are spaced each other and are arranged in parallel.

First hanging strip 15, the second hanging strip 16 are equipped with limit french drain 17, limit french drain 17 from the first hanging strip 15, second The two sides of hanging strip 16 away from each other are recessed to be formed, and the both ends of reset spring 4 are installed with the limit french drain 17 in the first hanging strip 15 respectively In interior and the second hanging strip 16 limit french drain 17, the furrow bank using limit french drain 17 stops reset spring 4, prevents reset spring 4 It falls off from hanging strip.

The electromagnet further includes skeleton 18, coil 19 and iron core 21, skeleton 18 between yoke 6 and insulating body 1, Iron core 21 is installed in skeleton 18, and the setting of coil 19 is arranged in 18 outside of skeleton and around iron core 21, one end connection of iron core 21 To the first iron plate 7, the other end of iron core 21 is used to attract the other end of armature 5.

First iron plate 7 is equipped with shrinkage pool 22 and protrudes into multiple ribs 23 in shrinkage pool 22, rib 23 and shrinkage pool 22 Centerline axis parallel setting, multiple ribs 23 are arranged around the central axis of shrinkage pool 22, and one end of iron core 21 is equipped with riveter portion 24, Riveter portion 24 is riveted in the shrinkage pool 22 of the first iron plate 7, and rib 23 is used to contradict the outer surface in riveter portion 24.Riveter portion 24 with During first iron plate 7 rivets, riveter portion 24 squeezes rib 23 and rib 23 is deformed, and substantially increases rib 23 and riveting Frictional force between head 24, it is ensured that riveter portion 24 is firm to be riveted in the shrinkage pool 22 of the first iron plate 7, and riveter portion 24 and the are prevented One iron plate 7 is disconnected from each other.

Including holding parts 25 and from junction 26 made of the bending of holding parts 25, the setting of holding parts 25 exists the static terminal 3 On insulating body 1, holding parts 25 are fixed on insulating body 1 via screw, prevent static terminal 3 from falling off from insulating body 1, Gu The free end in portion 25 is held equipped with the static contact 27 for moved end to be connected, junction 26 is equipped with the sky protruded into insulating body 1 Heart cylinder 28, extraneous conductor is for being installed in hollow cylinder 28.Hollow cylinder 28 is limited using insulating body 1, avoids sky It is relatively moved between heart cylinder 28 and insulating body 1.

The spring return type electromagnetic relay further includes plastic casing 29, and plastic casing 29 is set in the outside of insulating body 1, Plastic casing 29 is equipped with the blind chamber 31 of accommodating for being installed with electromagnet, dynamic point block 2 and static terminal 3；Plastic casing 29 is removably equipped with Two permanent magnets 32, two permanent magnets 32 are located at the outside of plastic casing 29, the polarity of two permanent magnets 32 side close to each other On the contrary, moved end is located between two permanent magnets 32 at the contact conducting of static terminal 3, two permanent magnets 32 are for elongating dynamic point Generated electric arc avoids electric arc from causing to damage to relay so that electric arc quickly extinguishes between block 2 and static terminal 3.This implementation In example, the outside of plastic casing 29 is equipped with accommodating blind hole 33 and protrudes into the snap-on 34 in accommodating blind hole 33, and permanent magnet 32 is installed with Accommodate blind hole 33 in, snap-on 34 clasp permanent magnet 32 by permanent magnet 32 limit accommodating blind hole 33 in, prevent accommodating blind hole 33 from It falls off on plastic casing 29.

The above content is only the preferred embodiment of the utility model, for those of ordinary skill in the art, according to this reality With novel thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as Limitations of the present invention.

Claims (10)

1. a kind of spring return type electromagnetic relay, including insulating body, electromagnet, dynamic point block and two static terminals, electromagnet, Two static terminals are all set in insulating body, and electromagnet is mobile for driving dynamic point block, and two static sides are connected in dynamic mobile block Son separates the conducting disconnected between two static terminals with static terminal；It is characterized by also including reset spring and armature, electricity Magnet has yoke, and yoke includes the first iron plate and the second iron plate from the bending of the first iron plate, and one end of armature is rotatably dispose in The one end of second iron plate far from the first iron plate, the both ends of reset spring are separately connected one end of the first iron plate and armature, move point block It is connected to the other end of armature, electromagnet is used to attract the other end of armature, and reset spring is for driving armature to reset.

2. spring return type electromagnetic relay according to claim 1, it is characterised in that: the insulating body is equipped with block Plate, two static terminals are located at the same side of stop catch plate, move point block between stop catch plate and static terminal, stop catch plate is supported for block Front contact block.

3. spring return type electromagnetic relay according to claim 1, it is characterised in that: the spring return type electromagnetism after Electric appliance further includes elastic piece, and one end of elastic piece is connected to armature, and the other end of elastic piece is connected to the middle part of dynamic point block, moves point The both ends of block are respectively used to contact two static terminals of conducting.

4. spring return type electromagnetic relay according to claim 1, it is characterised in that: the free end of second iron plate Two sides be respectively equipped with axis piece, the two sides of armature one end are respectively arranged with gap slot, and the axis piece of the second iron plate two sides rotates respectively It is located in the gap slot of armature two sides, one end of armature is located between the axis piece of the second iron plate two sides, and axis piece is away from each other Two sides are the resigning inclined-plane for cooperating armature to rotate.

5. spring return type electromagnetic relay according to claim 1, it is characterised in that: first iron plate is far from second The two sides of iron plate one end are respectively equipped with fixinig plate, and fixinig plate is fixedly mounted on insulating body via screw, the first iron plate or Two plate bodys are equipped with the first hanging strip, and one end of armature is equipped with the second hanging strip, and the first hanging strip, the second hanging strip are respectively positioned on the first iron plate two sides Fixinig plate between, the both ends of reset spring are respectively connected to the first hanging strip and the second hanging strip.

6. spring return type electromagnetic relay according to claim 5, it is characterised in that: first hanging strip, second are hung Item is equipped with limit french drain, limit french drain from the first hanging strip, the two sides of the second hanging strip away from each other are recessed forms, reset spring Both ends are located in respectively in the limit french drain of the first hanging strip and in the limit french drain of the second hanging strip.

7. spring return type electromagnetic relay according to claim 1, it is characterised in that: the electromagnet further includes bone Frame, coil and iron core, between yoke and insulating body, iron core is located in skeleton skeleton, and coil is set to skeleton and encloses It is arranged around iron core, one end of iron core is connected to the first iron plate, and the other end of iron core is used to attract the other end of armature.

8. spring return type electromagnetic relay according to claim 7, it is characterised in that: first iron plate is equipped with shrinkage pool And multiple ribs in shrinkage pool are protruded into, the centerline axis parallel of rib and shrinkage pool is arranged, and multiple ribs surround the center of shrinkage pool One end of axis setting, iron core is equipped with riveter portion, and riveter portion is riveted in the shrinkage pool of the first iron plate, and rib is for contradicting riveter portion Outer surface.

9. spring return type electromagnetic relay according to claim 1, it is characterised in that: the static terminal includes holding parts And from junction made of holding parts bending, holding parts are set to insulating body, and holding parts are fixed on insulating body via screw, The free end of holding parts is equipped with the static contact for moved end to be connected, and junction is equipped with the hollow cylinder protruded into insulating body, Extraneous conductor is for being located in hollow cylinder.

10. spring return type electromagnetic relay according to claim 1, it is characterised in that: the spring return type electromagnetism Relay further includes plastic casing, and plastic casing is sheathed on the outside of insulating body, and plastic casing is equipped with for being installed with electromagnet, dynamic point block And the blind chamber of accommodating of static terminal；Plastic casing is removably set there are two permanent magnet, and two permanent magnets are located at the outside of plastic casing, and two The polarity of a permanent magnet side close to each other on the contrary, be located at contact conducting of moved end with static terminal two permanent magnets it Between.