CN214175944U

CN214175944U - Stable type coplanar installation type electromagnetic relay

Info

Publication number: CN214175944U
Application number: CN202120362690.0U
Authority: CN
Inventors: 刘振伟
Original assignee: Sanyou Corp Ltd
Current assignee: Sanyou Corp Ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-09-10
Anticipated expiration: 2031-02-07

Abstract

The utility model relates to the technical field of relays, in particular to a stable coplanar installation type electromagnetic relay, which comprises an insulator, an electromagnet and a static terminal which are arranged on the insulator, an armature which is movably arranged, and a movable terminal which is arranged on the armature; the power supply terminal is characterized by further comprising a yoke and a power supply terminal, wherein the yoke comprises a first plate body, a second plate body, a first welding leg and a second welding leg, the second welding leg is arranged on the plate body, the first plate body is arranged on the insulator, and the first welding leg and the second welding leg are respectively located on the left side and the right side of the insulator; the third welding leg of the static terminal and the fourth welding leg of the power supply terminal are respectively positioned at the front side and the rear side of the insulator; in electromagnetic relay's installation, all weld all on the circuit board with the help of the overall arrangement setting of first leg, second leg, third leg, fourth leg, realize fixed all around the insulator to make whole relay stabilize and fix on the circuit board, avoid fixed shakiness and use badly, promote electromagnetic relay's performance.

Description

Stable type coplanar installation type electromagnetic relay

Technical Field

The utility model relates to a relay technical field especially discloses a firm type coplane installation formula electromagnetic relay.

Background

The relay is one of the switch kind that commonly uses in the circuit, and the kind of relay is various, and electromagnetic relay is just one kind of relay commonly used, and after electromagnetic relay assembles the completion, need install electromagnetic relay on external circuit board, and electromagnetic relay's structural design is unreasonable among the prior art, and electromagnetic relay is fixed unstably and rocks easily on the circuit board, leads to electromagnetic relay to use badly.

SUMMERY OF THE UTILITY MODEL

In order to overcome the shortcoming and the not enough that exist among the prior art, the utility model aims to provide a firm type coplane installation formula electromagnetic relay realizes fixing the insulator all around with the help of the overall arrangement setting of first leg, second leg, third leg, fourth leg to make whole relay stabilize and fix on the circuit board, avoid fixed shakiness to rock and use badly, promote electromagnetic relay's performance.

In order to achieve the above object, the present invention provides a stable coplanar installation type electromagnetic relay, which includes an insulator, an electromagnet and a stationary terminal disposed on the insulator, an armature movably disposed on the movable terminal of the armature, wherein after the electromagnet is energized, the electromagnet generates a magnetic force to attract the armature so that the armature drives the movable terminal to elastically deform and move, and the movable terminal turns on or off the stationary terminal; after the electromagnet is powered off, the electromagnet loses magnetic force, and the movable terminal drives the armature to reset and separate from the electromagnet under the action of elastic restoring force; the power supply terminal is characterized by further comprising a yoke and a power supply terminal, wherein the yoke comprises a first plate body, a second plate body and a first welding leg which are formed by respectively bending two ends of the first plate body, and a second welding leg arranged on the first plate body or/and the second plate body; the static terminal is provided with a third welding leg, the power supply terminal is arranged on the insulator and provided with a fourth welding leg, and the third welding leg and the fourth welding leg are respectively positioned on the front side and the rear side of the insulator.

The electromagnet comprises an iron core and a coil, the insulator is provided with a core column, a first partition plate and a second partition plate, the first partition plate and the second partition plate are respectively arranged at two ends of the core column, the iron core is positioned in the core column and penetrates through the core column, and the coil is wound on the outer side of the core column and positioned between the first partition plate and the second partition plate; one end of the iron core is arranged on the first plate body, the other end of the iron core is used for attracting the armature, and the armature is used for contacting the second plate body and the other end of the iron core; the power supply terminal sets up in first baffle, and quiet terminal sets up in the second baffle.

The insulator is provided with two bumps arranged on one side of the second partition plate, which is far away from the first partition plate, and the bumps are provided with clamping holes; the static terminal is provided with a fixed part formed by bending the third welding leg and a static contact arranged on the fixed part, two ends of the fixed part are respectively positioned in the clamping holes of the two convex blocks, the static contact is positioned between the two convex blocks, and the movable terminal is used for conducting or disconnecting the static contact.

The movable terminal is provided with a slide, a movable contact arranged on the slide and two lugs, the movable contact is positioned between the two lugs and is used for conducting or disconnecting the fixed contact, and the two lugs are movably accommodated in the abdicating grooves of the two lugs respectively.

The movable terminal comprises a first reed and a second reed formed by bending the first reed, the first reed is arranged on the yoke, the armature and the movable contact are arranged on the second reed, one end of the armature movably props against one end, far away from the first plate, of the second plate, and the iron core is used for attracting the other end of the armature; the second plate body is provided with two positioning columns, the armature is provided with two positioning through holes for respectively accommodating the two positioning columns, and the second reed is provided with two abdicating through holes for respectively accommodating the two positioning columns penetrating through the armature.

The first partition plate is provided with a containing blind groove, the containing blind groove is formed by being concavely arranged on one side of the first partition plate, which is far away from the second partition plate, and the containing blind groove is used for containing the first plate body; the width of the first end of the accommodating blind groove is larger than that of the second end of the accommodating blind groove, and the first plate body is provided with an expanding part positioned in the first end of the accommodating blind groove and a reducing part positioned in the second end of the accommodating blind groove.

The circuit board is characterized by also comprising a reference flat plate, wherein the reference flat plate is used for being pressed on the circuit board, and all welding feet penetrate through the reference flat plate and are used for being welded on the circuit edge; the first partition plate is provided with a counterweight blind groove and a counterweight strip positioned in the counterweight blind groove; the reference flat plate is used for covering the opening of the accommodating blind groove and the opening of the counterweight blind groove.

The first partition board is provided with a clamping groove, the power supply terminal is provided with a clamping part formed by bending the fourth welding leg, and the clamping part is inserted and clamped in the clamping groove; the clamping part is provided with a wire accommodating through hole penetrating through the clamping part, the end part of the coil penetrates through the clamping part through the wire accommodating through hole, and the end part of the coil is clamped between the clamping part and the inner side surface of the clamping groove.

The utility model has the advantages that: in electromagnetic relay's installation, all weld all on the circuit board with the help of the overall arrangement setting of first leg, second leg, third leg, fourth leg, realize fixed all around the insulator to make whole relay stabilize and fix on the circuit board, avoid fixed shakiness and use badly, promote electromagnetic relay's performance.

Drawings

Fig. 1 is a schematic structural view of the utility model after the plastic shell and the reference plate are hidden;

FIG. 2 is a schematic view of the exploded structure of the present invention;

fig. 3 is a partial cross-sectional enlarged view of the plastic shell of the present invention.

The reference numerals include:

1-insulator 2-electromagnet 3-static terminal

4-armature 5-moving terminal 6-yoke

7-power terminal 8-first solder foot 9-second solder foot

11-third leg 12-fourth leg 13-iron core

14-coil 15-core column 16-first partition board

17-second partition 18-projection 19-fixing part

21-second reed 22-reference flat plate 23-clamping groove

24, a clamping part 25, a plastic shell 26 and air holes.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying drawings, which are not intended to limit the present invention.

Referring to fig. 1 to 3, the stable coplanar installation electromagnetic relay of the present invention includes an insulator 1, the insulator 1 is made of insulating plastic, an electromagnet 2 and a stationary terminal 3 are installed on the insulator 1, an armature 4 is movably disposed, and a movable terminal 5 is fixedly disposed on the armature 4.

When the electromagnet 2 is electrified, the electromagnet 2 generates magnetic force to attract the armature 4 to enable the armature 4 to move, the moving armature 4 drives the moving terminal 5 to elastically deform to move, and the moving terminal 5 is connected or disconnected with the static terminal 3. When the electromagnet 2 loses power, the electromagnet 2 loses magnetic force, and the movable terminal 5 drives the armature 4 to reset and separate from the electromagnet 2 under the action of elastic restoring force.

Electromagnetic relay still includes yoke 6,

power supply terminal

7, 6 formula structures as an organic whole of yoke, yoke 6 includes the first plate body, second plate body and first leg 8 that form are buckled respectively from the both ends of first plate body, set up second leg 9 on the first plate body or/and the second plate body, first leg 8 is located the both sides of first plate body respectively, yoke 6 roughly is the L type, first plate body is fixed to be set up on insulator 1, first leg 8, second leg 9 is located the left and right sides of insulator 1 respectively.

The static terminal 3 has a third leg 11, the power supply terminal 7 is mounted on the insulator 1, the power supply terminal 7 has a fourth leg 12, and the third leg 11 and the fourth leg 12 are respectively located on the front and rear sides of the insulator 1.

In electromagnetic relay's installation, all weld all on the circuit board with the help of the overall arrangement setting of first leg 8, second leg 9, third leg 11, fourth leg 12, realize fixed all around insulator 1 to make whole relay stabilize and fix on the circuit board, avoid fixed unstable rocking and use badly, promote electromagnetic relay's performance.

The electromagnet 2 comprises an iron core 13 and a coil 14, the insulator 1 is approximately in an I shape, the insulator 1 is provided with a core column 15, a first partition plate 16 and a second partition plate 17 which are respectively arranged at two ends of the core column 15, the two ends are far away from each other, the outer diameter of the core column 15 is smaller than that of the partition plates, the core column 15 is positioned in the middle of the partition plates, the iron core 13 is positioned in the core column 15 and penetrates through the core column 15, and the coil 14 is wound on the outer side of the core column 15 and is positioned between the first partition plate 16 and the second partition plate 17. The coil 14 is prevented from moving in the axial direction of the stem 15 by stopping the coil 14 against the two partition plates.

One end of the iron core 13 is fixedly arranged on the first plate body, for example, the iron core 13 is riveted with the first plate body, the other end of the iron core 13 is used for attracting the armature 4, and the armature 4 is used for contacting the second plate body and the other end of the iron core 13; the stationary terminal 3 is mounted on the second partition 17, and the power supply terminal 7 is mounted on the first partition 16.

With the help of quiet terminal 3 and power supply terminal 7's installation setting to the realization is fixed spacingly to first baffle 16 and second baffle 17, thereby fixes two baffles firmly, when moving terminal 5 and quiet terminal 3 contact collision, avoids second baffle 17 to take place to rock, guarantees the stability of moving terminal 5 and the contact of quiet terminal 3.

The insulator 1 is provided with two projections 18 arranged on one side of the second partition 17 far away from the first partition 16, the two projections 18 are arranged at intervals, and the projections 18 are provided with clamping holes which preferably penetrate through the projections 18; the static terminal 3 has a fixing portion 19 formed by bending the third fillet weld 11 and a static contact arranged on the fixing portion 19, the static terminal 3 is approximately L-shaped, two ends of the fixing portion 19 are respectively located in the clamping holes of the two bumps 18, the fixing portion 19 is limited by the two bumps 18, and the fixing portion 19 is prevented from being tilted and deformed and is not good in use. The static contact is located between two lugs 18, and the two lugs 18 shield and protect the static contact, and limit the moving range of the moving contact, and the moving terminal 5 is used for switching on or switching off the static contact.

The convex block 18 is provided with a yielding groove, the clamping hole is positioned between the yielding groove and the first partition plate 16, the movable terminal 5 is provided with a carrier, a movable contact and two lug plates, the movable contact is arranged on the carrier, the carrier is approximately a rectangular sheet, the movable contact is positioned between the two lug plates and is used for conducting or disconnecting the fixed contact, and the two lug plates are respectively and movably accommodated in the yielding grooves of the two convex blocks 18.

In the moving process of the slide, the lug moves in the yielding groove, and the lug is limited by means of the side surface of the inner groove of the yielding groove, so that the lug moves in a required preset range, the moving contact is prevented from being badly used due to excessive movement of the lug, and the moving terminal 5 is ensured to be accurately conducted with the static terminal 3 or accurately separated from the static terminal 3 for resetting.

The movable terminal 5 comprises a first reed and a second reed 21 formed by bending the first reed, the first reed is fixedly arranged on the yoke 6, the armature 4 and the movable contact are both arranged on the second reed 21, one end of the armature 4 movably props against one end, far away from the first plate, of the second plate, and the iron core 13 is used for attracting the other end of the armature 4.

The second plate body is provided with two positioning columns, the armature 4 is provided with two positioning through holes for respectively accommodating the two positioning columns, and the second spring 21 is provided with two abdicating through holes for respectively accommodating the two positioning columns penetrating through the armature 4. When the armature 4 and the second spring 21 move relative to the insulator 1, the armature 4 and the second spring 21 can move in the correct direction by means of the matching of the positioning column and the positioning through hole and the matching of the positioning column and the abdicating through hole, so that the situation that the armature 4 and the second spring 21 incline and swing to cause poor use is avoided.

The first partition plate 16 is provided with a containing blind groove, the containing blind groove is formed by concavely arranging one side of the first partition plate 16, which is far away from the second partition plate 17, the containing blind groove is used for containing a first plate body, and the first plate body is clamped in the containing blind groove of the first partition plate 16. The width of the first end of the accommodating blind groove is larger than that of the second end of the accommodating blind groove, and the first plate body is provided with an expanding part positioned in the first end of the accommodating blind groove and a reducing part positioned in the second end of the accommodating blind groove.

During actual assembly, the yoke 6 is inserted into the insulator 1, and in the process of inserting the yoke 6 into the insulator 1, the first plate is stopped and limited by the side surface of the inner groove for accommodating the blind groove, so that the first plate is accurately mounted on the first plate, and poor assembly caused by wrong mounting position of the first plate is avoided.

The electromagnetic relay also comprises a reference flat plate 22, wherein the reference flat plate 22 is used for being pressed on the circuit board, and all welding pins penetrate through the reference flat plate 22 and are used for being welded on the circuit edge; the whole electromagnetic relay is stably placed on the circuit side by the arrangement of the reference flat plate 22. The first clapboard 16 is provided with a counterweight blind slot and a counterweight strip positioned in the counterweight blind slot; by means of the arrangement of the balance weight strips, the insulator 1 is rapidly and accurately placed on the circuit board, and the installation yield is improved. The reference plate 22 is used for covering the opening of the accommodating blind groove and the opening of the counterweight blind groove, so that the first plate body is packaged in the accommodating blind groove, and the counterweight strip is packaged in the counterweight blind groove, so that the two are prevented from falling off from the insulator 1.

The first partition plate 16 is provided with a clamping groove 23, the power supply terminal 7 is provided with a clamping part 24 formed by bending the fourth welding leg 12, and the clamping part 24 is inserted and clamped in the clamping groove 23; the catching part 24 has a wire accommodating penetration hole penetrating the catching part 24, an end of the coil 14 penetrates the catching part 24 through the wire accommodating penetration hole, and the end of the coil 14 is held between the catching part 24 and an inner side surface of the catching groove 23.

In practical use, the end of the coil 14 penetrates the clamping portion 24 through the wire-accommodating through hole to enable the end of the coil 14 to be located in the wire-accommodating through hole, then the clamping portion 24 and the end of the coil 14 in the wire-accommodating through hole are inserted into the clamping groove 23, and in the process of inserting the clamping portion 24 into the first partition 16, the end of the coil 14 is bent and clamped between the clamping portion 24 and the side surface of the inner groove of the clamping groove 23, so that the coil 14 is stably conducted with the power terminal 7, and the conduction efficiency between the coil 14 and the power terminal is improved.

The electromagnetic relay further comprises a plastic shell 25 sleeved on the outer side of the insulator 1, the electromagnet 2, the armature 4, the movable terminal 5 and the static terminal 3 are all located in the plastic shell 25, and the reference flat plate 22 is used for covering an opening of the plastic shell 25, so that all parts are stably packaged in the plastic shell 25. The side wall of the plastic shell 25 is provided with air holes 26, and the air holes 26 are approximately wave-shaped.

In the use process of the electromagnetic relay, after the electromagnet 2 generates heat to enable the temperature of the air in the plastic shell 25 to be increased, the air in the plastic shell 25 expands and is discharged through the air holes 26, and automatic exhaust of the electromagnetic relay is achieved. After the outside water enters the air holes 26, the water is blocked by the wave peaks of the air holes 26, so that the water is prevented from entering the plastic shell 25, and the waterproof effect of the electromagnetic relay is realized.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A stable coplanar installation type electromagnetic relay comprises an insulator, an electromagnet and a static terminal which are arranged on the insulator, an armature which is movably arranged, and a movable terminal which is arranged on the armature, wherein after the electromagnet is electrified, the electromagnet generates magnetic force to attract the armature so that the armature drives the movable terminal to elastically deform and move, and the movable terminal is switched on or switched off the static terminal; after the electromagnet is powered off, the electromagnet loses magnetic force, and the movable terminal drives the armature to reset and separate from the electromagnet under the action of elastic restoring force; the method is characterized in that: the power supply terminal is characterized by further comprising a yoke and a power supply terminal, wherein the yoke comprises a first plate body, a second plate body and a first welding leg which are formed by respectively bending two ends of the first plate body, and a second welding leg arranged on the first plate body or/and the second plate body; the static terminal is provided with a third welding leg, the power supply terminal is arranged on the insulator and provided with a fourth welding leg, and the third welding leg and the fourth welding leg are respectively positioned on the front side and the rear side of the insulator.

2. A robust, co-surface mounted electromagnetic relay according to claim 1, wherein: the electromagnet comprises an iron core and a coil, the insulator is provided with a core column, a first partition plate and a second partition plate, the first partition plate and the second partition plate are respectively arranged at two ends of the core column, the iron core is positioned in the core column and penetrates through the core column, and the coil is wound on the outer side of the core column and positioned between the first partition plate and the second partition plate; one end of the iron core is arranged on the first plate body, the other end of the iron core is used for attracting the armature, and the armature is used for contacting the second plate body and the other end of the iron core; the power supply terminal sets up in first baffle, and quiet terminal sets up in the second baffle.

3. A robust, co-surface mounted electromagnetic relay according to claim 2, wherein: the insulator is provided with two convex blocks which are arranged on one side of the second clapboard far away from the first clapboard, and the convex blocks are provided with clamping holes; the static terminal is provided with a fixed part formed by bending the third welding leg and a static contact arranged on the fixed part, two ends of the fixed part are respectively positioned in the clamping holes of the two convex blocks, the static contact is positioned between the two convex blocks, and the movable terminal is used for conducting or disconnecting the static contact.

4. A robust, co-surface mounted electromagnetic relay according to claim 3, wherein: the convex block is provided with a yielding groove, the movable terminal is provided with a slide, a movable contact and two lug plates, the movable contact is arranged between the two lug plates and used for conducting or disconnecting the fixed contact, and the two lug plates are movably accommodated in the yielding grooves of the two convex blocks respectively.

5. A robust, co-surface mounted electromagnetic relay according to claim 4, wherein: the movable terminal comprises a first reed and a second reed formed by bending the first reed, the first reed is arranged on the yoke, the armature and the movable contact are arranged on the second reed, one end of the armature movably props against one end, far away from the first plate, of the second plate, and the iron core is used for attracting the other end of the armature; the second plate body is provided with two positioning columns, the armature is provided with two positioning through holes for respectively accommodating the two positioning columns, and the second reed is provided with two abdicating through holes for respectively accommodating the two positioning columns penetrating through the armature.

6. A robust, co-surface mounted electromagnetic relay according to claim 2, wherein: the first partition plate is provided with a containing blind groove, the containing blind groove is formed by being concavely arranged on one side of the first partition plate, which is far away from the second partition plate, and the containing blind groove is used for containing the first plate body; the width of the first end of the accommodating blind groove is larger than that of the second end of the accommodating blind groove, and the first plate body is provided with an expanding part positioned in the first end of the accommodating blind groove and a reducing part positioned in the second end of the accommodating blind groove.

7. A robust, co-surface mounted electromagnetic relay according to claim 6, wherein: the circuit board is characterized by also comprising a reference flat plate, wherein the reference flat plate is used for being pressed on the circuit board, and all welding feet penetrate through the reference flat plate and are used for being welded on the circuit edge; the first partition plate is provided with a counterweight blind groove and a counterweight strip positioned in the counterweight blind groove; the reference flat plate is used for covering the opening of the accommodating blind groove and the opening of the counterweight blind groove.

8. A robust, co-surface mounted electromagnetic relay according to claim 2, wherein: the first partition board is provided with a clamping groove, the power supply terminal is provided with a clamping part formed by bending the fourth welding leg, and the clamping part is inserted and clamped in the clamping groove; the clamping part is provided with a wire accommodating through hole penetrating through the clamping part, the end part of the coil penetrates through the clamping part through the wire accommodating through hole, and the end part of the coil is clamped between the clamping part and the inner side surface of the clamping groove.