CN218215152U - Electromagnetic relay - Google Patents

Abstract

The utility model discloses an electromagnetic relay, the technical scheme main points of which include a base, a yoke, an armature, a movable spring and an electromagnetic coil, wherein the yoke is arranged in an L-shaped structure, one side of the yoke is fixedly arranged on the base, the end part of the other side is provided with a connecting part, the armature is arranged on the connecting part and swings by taking the connecting part as a fulcrum, the connecting part comprises a first end surface and a second end surface, and the first end surface and the second end surface are obliquely arranged; the iron core is worn to be equipped with at solenoid's center, the embedded buffer layer that is equipped with of armature, the outside of buffer layer is provided with inhales and closes the piece solenoid circular telegram back, inhale and close the piece and close with the iron core looks actuation, the utility model discloses an armature has buffer function with the iron core actuation time, also can ensure longer life under frequent actuation.

Description

Electromagnetic relay

Technical Field

The utility model relates to a relay technical field, more specifically say that it relates to an electromagnetic relay.

Background

An electromagnetic relay is a relay which uses electromagnetic force to drive mechanical parts to move relatively to generate a predetermined response, and generally comprises a magnetic circuit part, a movable spring part, a static spring part, a base and a shell, wherein the magnetic circuit part comprises an iron core, a coil rack wound with an enameled wire, an armature, a yoke and the like. When the coil (namely the enameled wire) passes through the current, electromagnetic force is generated, the armature is attracted and is contacted with a pole face at one end of the iron core, so that the movable contact of the movable spring part is driven to be contacted with or separated from the static contact of the static spring part; when the current in the coil disappears, the electromagnetic force disappears, the armature resets and is separated from the pole face at one end of the iron core, and therefore the movable contact of the movable spring part is separated from or contacts with the fixed contact of the fixed spring part. The purpose of conducting or cutting off the circuit is achieved through the contact or separation of the movable contact and the fixed contact.

Currently, an existing electromagnetic relay, for example, an electromagnetic relay with publication number CN216773138U, has a yoke and an armature connected by a moving spring, so that the armature is connected to the yoke and can swing with the yoke as a pivot, but the above structure has some defects: can produce vibrations when armature and iron core actuation to with vibrations conduction to yoke, armature and the junction of moving the spring, and the relay switching on and off electricity control is frequent, so for a long time, lead to easily that the junction of moving the spring is not hard up, and then probably lead to the cooperation of armature and yoke to appear squinting, just make armature part break away from the yoke after armature squinting easily, make the magnetic circuit break off, produce the magnetic leakage, greatly reduced magnetic circuit's suction has influenced life.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electromagnetic relay, its armature has buffer function during with the iron core actuation, also can ensure longer life under frequent actuation to the not enough that prior art exists.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an electromagnetic relay, includes base, yoke, armature, movable reed and solenoid, its characterized in that: the yoke iron is arranged to be of an L-shaped structure, one side of the yoke iron is fixedly arranged on the base, the end part of the other side of the yoke iron is provided with a connecting part, the armature iron is arranged on the connecting part and swings by taking the connecting part as a fulcrum, the connecting part comprises a first end face and a second end face, and the first end face and the second end face are obliquely arranged; the iron core is arranged in the center of the electromagnetic coil in a penetrating mode, the armature is embedded with the buffer layer, the outer portion of the buffer layer is provided with the attraction piece, and after the electromagnetic coil is electrified, the attraction piece and the iron core are attracted.

The utility model discloses further set up to: the attraction piece is arranged flush with the surface of the armature.

The utility model discloses further set up to: the movable spring is respectively and fixedly arranged on the yoke and the armature, and one end of the movable spring is provided with a movable contact; the electromagnetic coil is disposed between the yoke and the armature.

The utility model discloses further set up to: when the armature iron is attracted to or separated from the electromagnetic coil, the armature iron is respectively attached to the first end face and the second end face.

The utility model discloses further set up to: the electromagnetic coil is characterized in that a control pin, a main pin and an auxiliary pin are arranged on the base, the control pin is electrically connected with the electromagnetic coil, a supporting rod is further arranged on the base, a stationary contact is arranged on the supporting rod, the auxiliary pin is electrically connected with the stationary contact, and the main pin is electrically connected with the movable reed.

The utility model discloses further set up to: the two sides of the connecting part are provided with limiting bulges, and the armature is positioned between the limiting bulges.

The utility model discloses further set up to: the buffer layer is made of flexible silica gel mixed iron powder.

To sum up, the utility model discloses following beneficial effect has:

the utility model discloses compare prior art, at the embedded buffer layer that is equipped with of armature, the outside of buffer layer is provided with the absorption piece, after solenoid circular telegram, armature attracts to solenoid one side, iron core and absorption piece contact actuation to produce vibrations, vibrations are cushioned by the buffer layer, thereby let the vibrations of conduction on armature and the movable contact spring weaken, so that long-time frequent actuation also can keep movable contact spring and armature, yoke be connected can not become flexible, life obtains effectual extension and guarantee.

And simultaneously, the utility model discloses still set up connecting portion, the first terminal surface and the second terminal surface slope of connecting portion set up, armature can contact with first terminal surface and second terminal surface respectively when actuation and separation, the area of contact of armature and yoke has been increased, compare current structure, increase area of contact and make armature and yoke all have good support and contact when actuation or separation, and the connecting portion both sides all are provided with spacing arch, make armature and yoke be difficult for appearing the skew, this stability of the magnetic circuit of having just guaranteed yoke and armature constitution, the magnetic leakage problem is difficult to appear, suction is reliable, the effect of the longer life of guarantee relay has been played equally.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a partial view showing the structure of the yoke connecting portion of the present embodiment;

FIG. 3 is a schematic view of the base structure of the present embodiment;

fig. 4 is a partial structure diagram of the buffer layer of the armature in the embodiment.

Reference numerals: 1. a base; 101. a control pin; 102. a main pin; 103. a secondary pin; 2. a yoke; 3. an armature; 4. a movable spring plate; 5. an electromagnetic coil; 6. a connecting portion; 601. a first end face; 602. a second end face; 7. an iron core; 8. a buffer layer; 9. a suction sheet; 10. a stationary contact; 11. a movable contact; 12. a support bar; 13. and a limiting bulge.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment discloses an electromagnetic relay, as shown in fig. 1-4, including a base 1, a yoke 2, an armature 3, a movable reed 4 and an electromagnetic coil 5, wherein the yoke 2 is set to be an "L" shaped structure, one side of the yoke is fixedly arranged on the base 1, the end part of the other side is provided with a connecting part 6, the armature 3 is arranged on the connecting part 6 and swings with the connecting part 6 as a fulcrum, the connecting part 6 includes a first end surface 601 and a second end surface 602, the first end surface 601 and the second end surface 602 are obliquely arranged, so that when the armature 3 is attracted or separated with the electromagnetic coil 5, the armature 3 is respectively attached to the first end surface 601 and the second end surface 602, if only one plane is arranged, the armature 3 can only contact with the plane under a certain condition of attraction or separation, and when the other state is, a side line of the plane contacts with the armature 3, when the side line contacts with the inclined iron 3, because the contact area is small, the corresponding friction force is also small, so that the armature 3 and the armature 2 easily deviate, when the side line contacts with the inclined iron 3, the yoke easily breaks, the magnetic circuit easily generates a magnetic leakage problem, and the magnetic leakage problem easily occurs, the armature 3 easily generates a magnetic leakage, and the magnetic leakage problem easily generates a magnetic leakage problem occurs, and the magnetic core 7 easily generates a magnetic leakage problem occurs; after the two end faces are arranged, no matter in an attraction state or a separation state, the armature 3 and the yoke 2 both have reliable contact areas, the problems are not easy to occur, correspondingly, the connecting portion 6 is made of a flexible conductive material, because the rigid yoke 2 and the armature 3 basically depend on the movable spring 4 to ensure that the positions do not deviate when being matched, the self-matched friction force of the armature 3 and the yoke is very small, under the condition, when the movable spring 4 has a little metal fatigue, various problems can be caused when the armature 3 and the yoke 2 are matched immediately, the service life is further shortened, and the flexible conductive material, such as conductive silica gel, is adopted, so that the friction force between the armature and the yoke is relatively large, the matching is more stable, and the service life can be prolonged.

Further, an iron core 7 penetrates through the center of the electromagnetic coil 5, a buffer layer 8 is embedded in the armature 3, an attraction piece 9 is arranged outside the buffer layer 8, after the electromagnetic coil 5 is electrified, the attraction piece 9 is attracted with the iron core 7, the attraction piece 9 is flush with the surface of the armature 3, the buffer layer 8 is made of flexible silica gel mixed iron powder, the flexible silica gel plays a buffering role, the iron powder can ensure that the electromagnetic coil 5 is electrified to generate attraction force, the buffer layer 8 can also be attracted by the electromagnetic coil 5 and the iron core 7, and the size of current in the electromagnetic coil 5 used for triggering the armature 3 to act is basically kept the same as that of the buffer layer, so that the direct adaption of the relay with the same specification can be realized without extra adjustment.

Further, the movable spring 4 is respectively fixed on the yoke 2 and the armature 3, usually the movable spring 4 is provided with a hole, the corresponding positions on the yoke 2 and the armature 3 are provided with a clamping rod, the hole is clamped into the clamping rod and then fixed by welding and the like, and one end of the movable spring 4 is provided with a movable contact 11; the electromagnetic coil 5 is arranged between the yoke 2 and the armature 3, the armature 3 can be attracted after the electromagnetic coil 5 is electrified, so that the movable contact 11 is driven to move, and the armature 3 is reset under the action of the movable reed 4 after the electromagnetic coil 5 is electrified.

Further, the base 1 is provided with a control pin 101, a main pin 102 and an auxiliary pin 103, wherein the control pin 101, the main pin 102 and the auxiliary pin 103 are fixed on the base 1 in an inserting manner, and are respectively provided with two pins, and each control pin 101 is welded with one end of the electromagnetic coil 5 through a wire to realize electrical connection; still be provided with bracing piece 12 on the base 1, be provided with stationary contact 10 on the bracing piece 12, vice pin 103 is in the same place through the wire welding with stationary contact 10, realizes electric connection, and main pin 102 passes through the wire welding with movable contact 4 and is in the same place, realizes electric connection.

Furthermore, limiting bulges 13 are arranged on two sides of the connecting part 6, the armature 3 is positioned between the limiting bulges 13, the position of the armature 3 is further restrained through the limiting bulges 13, and the armature is prevented from being matched with the yoke 2 to generate deviation.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims (6)

1. The utility model provides an electromagnetic relay, includes base (1), yoke (2), armature (3), movable reed (4) and solenoid (5), its characterized in that: the yoke (2) is of an L-shaped structure, one side of the yoke is fixedly arranged on the base (1), the end part of the other side of the yoke is provided with a connecting part (6), the armature (3) is arranged on the connecting part (6) and swings by taking the connecting part (6) as a fulcrum, the connecting part (6) comprises a first end surface (601) and a second end surface (602), and the first end surface (601) and the second end surface (602) are obliquely arranged; an iron core (7) penetrates through the center of the electromagnetic coil (5), a buffer layer (8) is embedded in the armature (3), an attraction piece (9) is arranged outside the buffer layer (8), and after the electromagnetic coil (5) is electrified, the attraction piece (9) is attracted with the iron core (7).

2. An electromagnetic relay according to claim 1, characterized in that: the suction sheet (9) is flush with the surface of the armature (3).

3. An electromagnetic relay according to claim 1, characterized in that: the movable spring (4) is respectively and fixedly arranged on the yoke iron (2) and the armature iron (3), and one end of the movable spring (4) is provided with a movable contact (11); the electromagnetic coil (5) is arranged between the yoke (2) and the armature (3).

4. An electromagnetic relay according to claim 1, characterized in that: when the armature (3) is attracted to or separated from the electromagnetic coil (5), the armature (3) is attached to the first end face (601) and the second end face (602) respectively.

5. An electromagnetic relay according to claim 1, characterized in that: the electromagnetic coil control device is characterized in that a control pin (101), a main pin (102) and an auxiliary pin (103) are arranged on the base (1), the control pin (101) is electrically connected with the electromagnetic coil (5), a supporting rod (12) is further arranged on the base (1), a stationary contact (10) is arranged on the supporting rod (12), the auxiliary pin (103) is electrically connected with the stationary contact (10), and the main pin (102) is electrically connected with the movable spring piece (4).

6. An electromagnetic relay according to claim 1, characterized in that: both sides of the connecting part (6) are provided with limiting bulges (13), and the armature (3) is positioned between the limiting bulges (13).

Images