CN210325647U

CN210325647U - Relay for reducing suction collision noise

Info

Publication number: CN210325647U
Application number: CN201921217830.4U
Authority: CN
Inventors: 刘振伟
Original assignee: Sanyou Corp Ltd
Current assignee: Sanyou Corp Ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-04-14
Anticipated expiration: 2029-07-29

Abstract

The utility model relates to the technical field of relays, in particular to a relay for reducing suction collision noise, which comprises an electromagnet, an armature and a movable spring, wherein the electromagnet is provided with an iron core, the armature is arranged on the movable spring, the iron core is used for attracting the armature to move the armature, and the moving armature drives the movable spring to move so that the movable spring is switched on or switched off a first static terminal of the relay; one end of the iron core, which is close to the armature, or one end of the armature, which is close to the iron core, is provided with a flexible buffer part, and the flexible buffer part is used for absorbing impact force between the iron core and the armature so as to reduce collision noise when the iron core and the armature are absorbed; in the use of relay, when the iron core actuation armature of electro-magnet made armature remove, the flexible bolster of contradicting earlier of the armature of removal was at the conflict iron core, utilized flexible bolster to absorb the collision impact force between armature and the iron core, the collision noise when reducing the relay actuation promotes the performance of relay.

Description

Relay for reducing suction collision noise

Technical Field

The utility model relates to a relay technical field especially discloses a reduce relay of actuation collision noise.

Background

The relay is one of the common switches which control large current by using small current in the circuit, and has gradually become one of the essential elements of various large-scale electronic instruments, the types of the relay are various, and the electromagnetic relay is one of the common relay types.

The power unit of the electromagnetic relay is mainly constructed by the electromagnet and the armature, when the electromagnetic relay is used, the electromagnet attracts the armature so that the armature moves, and the moving armature drives the contact unit of the electromagnetic relay to be switched on or switched off.

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 reduce relay of actuation collision noise utilizes flexible bolster to absorb the collision impact force between armature and the iron core, reduces the relay and inhales fashionable collision noise, promotes the performance of relay.

In order to achieve the above object, the utility model discloses a reduce relay of actuation collision noise, including electro-magnet, armature and movable spring, the electro-magnet has the iron core, armature installation sets up on the movable spring, the iron core is used for attracting armature to make armature remove, the movable armature drives the movable spring to remove and makes the movable spring switch on or break off the first quiet terminal of relay; and a flexible buffer piece is arranged at one end of the iron core close to the armature or one end of the armature close to the iron core and is used for absorbing impact force between the iron core and the armature so as to reduce collision noise when the iron core and the armature are absorbed.

Preferably, an accommodating blind groove is formed in one end, close to the armature, of the iron core or one end, close to the iron core, of the armature, and the flexible buffer piece is accommodated in the accommodating blind groove and protrudes out of an end face of one end, close to each other, of the iron core and the armature.

Preferably, the accommodating blind groove is formed in the iron core, and the flexible buffer part is made of silica gel.

Preferably, the accommodating blind groove penetrates through the iron core along the thickness direction of the iron core, the flexible buffer part is cylindrical, and the side wall of the flexible buffer part protrudes out of the end face, close to one end of the armature, of the iron core and is used for abutting against the armature.

Preferably, the accommodating blind groove is in an elliptic cylinder shape, the short shaft end of the accommodating blind groove penetrates through the end face of the iron core close to one end of the armature, the length of the long shaft end of the accommodating blind groove is greater than the diameter of the flexible buffer part, and the opening width of the accommodating blind groove penetrating through the end face of the iron core close to one end of the armature is smaller than the diameter of the flexible buffer part.

Preferably, the electro-magnet still includes insulating skeleton, and the iron core is installed in insulating skeleton and is stretched out insulating skeleton's terminal surface suddenly, and the blind groove of holding is located outside insulating skeleton, and insulating skeleton is equipped with two separation blades, and the one end that the iron core stretches out insulating skeleton suddenly is located between two separation blades, and two separation blades are used for respectively hiding the opening at the blind groove both ends of holding in order to encapsulate flexible bolster in the blind groove of holding.

Preferably, the electromagnet further comprises a yoke, the yoke is arranged on the insulating framework, the yoke is in an L shape, one end of the yoke is in contact with one end of the iron core far away from the accommodating blind slot, the other end of the yoke and one end of the iron core attracting the armature are arranged at intervals, and the movable spring is arranged at the other end of the yoke; the armature is provided with a first stop block and a second stop block which protrude out of the lower surface of the armature, the lower surface of the armature is abutted against the end surface of the other end of the yoke, and the first stop block and the second stop block are positioned on two sides of the yoke; the first stop block protrudes out of the side surface of the yoke, the movable spring is provided with a stop part for stopping the first stop block, and the stop part stops the first stop block so that the lower surface of the armature is abutted against the yoke.

Preferably, the movable spring is provided with an opening, the stop part is a part of a side wall of the opening, and the first stop block protrudes out of a side surface of the yoke and then enters the opening.

Preferably, one end of the movable spring, which is away from the yoke, is provided with a movable point block and an elastic contact, the elastic contact and the movable point block are respectively located at two sides of the movable spring, the movable point block is used for connecting or disconnecting the first stationary terminal, and the elastic contact is used for connecting the second stationary terminal of the relay.

Preferably, one side of the elastic contact, which is far away from the moving point block, is provided with a spherical protrusion, and the spherical protrusion is used for contacting with a second fixed terminal of the conduction relay.

The utility model has the advantages that: in the use of relay, when the iron core actuation armature of electro-magnet made armature remove, the flexible bolster of contradicting earlier of the armature of removal was at the conflict iron core, utilized flexible bolster to absorb the collision impact force between armature and the iron core, the collision noise when reducing the relay actuation promotes the performance of relay.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

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

fig. 3 is a schematic perspective view of the iron core, the flexible buffer member and the insulating frame of the present invention;

fig. 4 is a schematic perspective view of the yoke, the movable spring, the armature and the movable point block of the present invention;

fig. 5 is an exploded schematic view of the yoke, the movable spring, the armature and the movable point block of the present invention;

fig. 6 is a schematic perspective view of the movable spring of the present invention;

fig. 7 is a schematic perspective view of an armature according to the present invention;

fig. 8 is a front view of the yoke of the present invention;

fig. 9 is a schematic perspective view of an armature at another viewing angle according to the present invention.

The reference numerals include:

1-armature 2-movable spring 3-iron core

4-flexible buffer piece 5-accommodating blind groove 6-insulating framework

7-baffle 8-yoke 9-first sheet

11-second sheet body 12-first block 13-second block

14-stop part 15-hole 16-first abdicating inclined plane

17-second abdication inclined plane 18-thickness reduction groove 19-riveting column

21-riveting hole 22-abdication perforation 23-elastic sheet

24-moving point block 25-elastic contact 26-spherical bulge.

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.

Please refer to fig. 1 to 3, the utility model discloses a reduce relay of actuation collision noise, including electro-magnet, armature 1 and movable spring 2, the electro-magnet has iron core 3, and armature 1 installs and sets up on movable spring 2, and iron core 3 is used for attracting armature 1 to make armature 1 remove, and the armature 1 of removal drives movable spring 2 and removes and makes movable spring 2 switch on or break off the first quiet terminal of relay.

One end of the iron core 3 close to the armature 1 or one end of the armature 1 close to the iron core 3 is provided with a flexible buffer member 4, when the iron core 3 of the electromagnet attracts the armature 1, the flexible buffer member 4 is used for absorbing impact force between the iron core 3 and the armature 1 so as to reduce collision noise generated when the iron core 3 attracts the armature 1.

In the use of relay, when 3 actuation armatures 1 of iron core of electro-magnet make armature 1 remove, flexible bolster 4 of contradicting earlier of armature 1 of removal is conflicting iron core 3, then contradicts on iron core 3 again, utilizes flexible bolster 4 to absorb the collision impact force between armature 1 and the iron core 3, reduces the collision noise when the relay inhales, promotes the performance of relay.

One end of the iron core 3 close to the armature 1 or one end of the armature 1 close to the iron core 3 are provided with accommodating blind grooves 5, the accommodating blind grooves 5 are formed by the concave arrangement of the outer surface of the iron core 3 or the outer surface of the armature 1, and the flexible buffer parts 4 are accommodated in the accommodating blind grooves 5 and protrude out of the end surfaces of the ends, close to one end of the iron core 3 and the armature 1, of the iron core.

When the iron core 3 of the electromagnet attracts the armature 1, the armature 1 moves towards the direction close to the iron core 3, the moving armature 1 firstly collides with one end of the flexible buffer part 4 which protrudes out of the outer surface of the iron core 3 or one end of the flexible buffer part 4 which protrudes out of the outer surface of the armature 1 firstly collides with the iron core 3, and after the armature 1 stops moving, the armature 1 collides with one end of the iron core 3 which is close to the armature 1.

In this embodiment, the accommodating blind slot 5 is disposed on the iron core 3, and in the using process of the relay, the iron core 3 is a stationary component, the armature 1 is a moving component, the flexible buffer 4 is mounted on the iron core 3, and the flexible buffer 4 cannot move along with the moving armature 1, so that the situation that the flexible buffer 4 is changed in position during the moving process to cause poor use is avoided. Preferably, the flexible buffer member 4 is made of silica gel, and the soft characteristic of the silica gel is utilized to ensure that the flexible buffer member 4 absorbs the impact force between the iron core 3 and the armature 1, so that the flexible buffer member 4 can be conveniently mounted and assembled, and in addition, compared with the flexible buffer member 4 made of metal, the flexible buffer member 4 can be prevented from being badly used due to rusting.

The blind groove of holding 5 runs through iron core 3 along the thickness direction of iron core 3, and flexible bolster 4 is cylindricly, during actual installation, packs into the blind groove of holding 5 with flexible bolster 4 from one side of iron core 3 along the thickness direction of iron core 3, and after flexible bolster 4 was packed into the blind groove of holding 5, the lateral wall of flexible bolster 4 was stretched out the terminal surface that iron core 3 was close to 1 one end of armature suddenly and was used for contradicting armature 1.

The blind groove 5 of holding is the elliptic cylinder form, and the cross sectional shape of blind groove 5 of holding promptly is oval, and the minor axis end of blind groove 5 of holding runs through the terminal surface that iron core 3 is close to armature 1 one end, and the length of the long axle head of blind groove 5 of holding is greater than the diameter of flexible bolster 4, and the blind groove 5 of holding runs through the opening width that iron core 3 is close to the terminal surface of armature 1 one end and is less than the diameter of flexible bolster 4.

Through the special structure of the accommodating blind groove 5, after the flexible buffer member 4 is installed in the accommodating blind groove 5, the flexible buffer member 4 is prevented from falling from the accommodating blind groove 5 through the opening of the end face of the iron core 3 close to one end of the armature 1, and the flexible buffer member 4 is ensured to be stably installed on the iron core 3. In addition, when iron core 3 actuation armature 1, armature 1 contradicts flexible bolster 4 and stretches out the one end that iron core 3 is close to the surface of armature 1 suddenly for flexible bolster 4 takes place elastic deformation, and flexible bolster 4 after the elastic deformation's deformation portion retraction gets into the long axle head of the blind groove 5 of holding in, ensures that armature 1 can accurately contradict on the surface of iron core 3, avoids armature 1 and iron core 3 can not contact and leads to magnetic circuit to use badly.

Referring to fig. 1 to 7, the electromagnet further includes an insulating frame 6, the iron core 3 is installed in the insulating frame 6, one end of the iron core 3 protrudes out of an end surface of one end of the insulating frame 6, the accommodating blind slot 5 is located outside the insulating frame 6, two blocking pieces 7 are arranged on the insulating frame 6, the two blocking pieces 7 are spaced and arranged in parallel, one end of the iron core 3 protruding out of the insulating frame 6 is located between the two blocking pieces 7, and the two blocking pieces 7 are respectively used for covering openings at two ends of the accommodating blind slot 5 to encapsulate the flexible buffer member 4 in the accommodating blind slot 5.

During actual assembly, firstly, the flexible buffer member 4 is installed into the accommodating blind groove 5 from one end of the iron core 3 along the length direction of the accommodating blind groove 5, then the iron core 3 provided with the flexible buffer member 4 is installed into the insulating framework 6, after the iron core 3 and the insulating framework 6 are assembled, the openings at two ends of the accommodating blind groove 5 are respectively covered by the two blocking pieces 7, and the flexible buffer member 4 is prevented from falling out of the accommodating blind groove 5.

The electromagnet further comprises a yoke 8, the yoke 8 is arranged on the insulating framework 6, the yoke 8 is L-shaped, one end of the yoke 8 is in contact with one end, far away from the accommodating blind slot 5, of the iron core 3, the other end of the yoke 8 and one end, far away from the accommodating blind slot 5, of the iron core 3 are arranged at intervals, and the movable spring 2 is arranged at the other end of the yoke 8. The movable spring 2 is substantially L-shaped, the movable spring 2 includes a first sheet 9 and a second sheet 11 bent and extended from the first sheet 9, the first sheet 9 is mounted on the other end of the yoke 8, and the armature 1 is mounted on the second sheet 11.

The armature 1 is provided with a first stop 12 and a second stop 13 protruding from the lower surface of the armature 1, the lower surface of the armature 1 abuts against the end surface of the other end of the yoke 8, and the first stop 12 and the second stop 13 are located on the left side and the right side of the yoke 8. When the iron core 3 attracts the armature 1 to move the armature 1, one side of the first stop block 12 and one side of the second stop block 13, which are close to each other, are used for abutting against the yoke 8 to prevent the armature 1 from being separated from the yoke 8 along the front-back direction.

The first stop 12 protrudes out of the side surface of the yoke 8, the movable spring 2 is provided with a stop portion 14 for stopping the first stop 12, and the stop portion 14 cooperates with the first stop 12 to prevent the armature 1 from being separated from the yoke 8 in the up-down direction, i.e. the lower end of the stop portion 14 abuts against the upper end of the first stop 12, so as to ensure that the armature 1 is stably limited on the yoke 8 and prevent the armature 1 and the yoke 8 from being separated from each other.

The first sheet 9 of the movable spring 2 is provided with an opening 15, in this embodiment, the opening 15 penetrates through the first sheet 9 along the thickness direction of the first sheet 9, the stopper 14 is a part of the side wall of the opening 15, the stopper 14 is a part of the upper side wall of the opening 15, and the first stopper 12 protrudes out of the yoke 8 and then enters the opening 15. During the movement of the armature 1, other side walls of the opening 15 can also play a role of limiting and stopping the first stop 12, so as to pre-limit the movement of the armature 1 and further prevent the armature 1 from moving excessively.

Referring to fig. 1 to 8, one end of the yoke 8 has a first receding slope 16 for facilitating the rotation of the armature 1 relative to the yoke 8, and the lower surface of the armature 1 abuts against the first receding slope 16. In the rotation process of the armature 1 relative to the yoke 8, one end of the first abdicating inclined plane 16 butts against the lower surface of the armature 1, a gap is formed between the other end of the first abdicating inclined plane 16 and the lower surface of the armature 1, the gap is convenient for the armature 1 to rotate relative to the yoke 8, the armature 1 can be ensured to drive the second sheet body 11 to rotate, and the stability of the use performance of the relay is ensured.

One end of the first stop 12 close to the second stop 13 is provided with a second abdicating inclined surface 17 which is convenient for the armature 1 to rotate relative to the yoke 8. After the electromagnetic attraction of the relay disappears, the second sheet body 11 of the movable spring 2 drives the armature 1 to reset, and through the arrangement of the second abdicating inclined plane 17, the second sheet body 11 of the movable spring 2 is ensured to drive the armature 1 to reset accurately, so that the situation that the armature 1 cannot reset accurately due to the fact that the second stop block 13 collides with the yoke 8 is avoided.

Referring to fig. 1 to 9, the first stopper 12 is provided with a thickness-reducing groove 18, the thickness-reducing groove 18 is formed by recessing from an upper surface of the first stopper 12, a bottom wall of the thickness-reducing groove 18 is configured to abut against an upper surface of the armature 1, the stopper 14 is located in the thickness-reducing groove 18, and the stopper 14 is configured to abut against the bottom wall of the thickness-reducing groove 18 and a side wall of the thickness-reducing groove 18 abuts against the stopper 14. Through the arrangement of the thickness reducing groove 18, the stop part 14 is used for assisting in stopping the limit armature 1, and the armature 1 is further prevented from being separated from the yoke 8 due to excessive movement.

The armature 1 is provided with a riveting column 19 protruding out of the upper surface of the armature 1, the second sheet body 11 of the movable spring 2 is provided with a riveting hole 21 for accommodating the riveting column 19, and the armature 1 and the movable spring 2 are riveted with the second sheet body 11 through the riveting column 19. During practical use, the riveting column 19 is firstly installed in the riveting hole 21, and then the riveting column 19 is riveted by using external riveting equipment, so that the armature 1 and the second sheet body 11 are quickly and accurately riveted together. Preferably, the number of the riveting columns 19 and the number of the riveting holes 21 are both two, and the two riveting columns 19 and the two riveting holes 21 are matched to ensure that the second sheet body 11 and the armature 1 are aligned quickly, so that the second sheet body 11 and the armature 1 are prevented from rotating relatively in the riveting process, and the riveting yield of the armature 1 and the second sheet body 11 is improved.

The second sheet body 11 is provided with a yielding through hole 22 and an elastic sheet 23 located in the yielding through hole 22, the armature 1 is connected and fixed on the elastic sheet 23, and the riveting hole 21 is arranged on the elastic sheet 23. Through the setting of the hole 22 and the elastic sheet 23 of stepping down, reduce the intensity of second lamellar body 11, promote the elasticity performance of second lamellar body 11, increase the elasticity of second lamellar body 11, after the electro-magnet loses the electricity, ensure that second lamellar body 11 can drive armature 1 to reset fast, avoid the second lamellar body 11 of movable spring 2 and the first quiet terminal separation of relay slowly and cause the contact adhesion.

The end of the movable spring 2 far away from the yoke 8 is provided with a movable point block 24 and an elastic contact 25, the elastic contact 25 and the movable point block 24 are respectively located at the upper side and the lower side of a second sheet body 11 of the movable spring 2, the movable point block 24 is made of a conductive material, in the embodiment, the movable point block 24 is located below the second sheet body 11, the elastic contact 25 is located above the second sheet body 11, the free end of the elastic sheet 23 is located at one end, close to the first sheet body 9, of the second sheet body 11, the movable point block 24 is used for conducting or disconnecting a first static terminal, and the elastic contact 25 is used for conducting a second static terminal of a relay.

When the elastic contact 25 contacts and turns on the second static terminal of the relay, the elastic contact 25 is elastically deformed, and the elastic restoring force of the elastic contact 25 is utilized to ensure that the elastic contact 25 is stably contacted and turned on with the second static terminal, so that the relay is prevented from being vibrated to cause the separation of the elastic contact 25 and the second static terminal.

The side of the elastic contact 25 away from the moving point block 24 is provided with a spherical protrusion 26, and the spherical protrusion 26 is used for contacting the second static terminal of the conduction relay. Through the setting of spherical protrusion 26, avoid causing the interference to the normal use of relay because of point discharge between elastic contact 25 and the second quiet terminal, promote the performance of relay.

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 relay for reducing suction collision noise comprises an electromagnet, an armature and a movable spring, wherein the electromagnet is provided with an iron core, the armature is arranged on the movable spring, the iron core is used for attracting the armature to enable the armature to move, and the moving armature drives the movable spring to move to enable the movable spring to be connected with or disconnected from a first static terminal of the relay; the method is characterized in that: and a flexible buffer piece is arranged at one end of the iron core close to the armature or one end of the armature close to the iron core and is used for absorbing impact force between the iron core and the armature so as to reduce collision noise when the iron core and the armature are absorbed.

2. The relay for reducing suction collision noise according to claim 1, wherein: and the end of the iron core close to the armature or the end of the armature close to the iron core is provided with a containing blind groove, and the flexible buffer piece is contained in the containing blind groove and protrudes out of the end surface of one end of the iron core close to the armature.

3. The relay for reducing suction collision noise according to claim 2, wherein: the accommodating blind groove is formed in the iron core, and the flexible buffer piece is made of silica gel.

4. The relay for reducing suction collision noise according to claim 3, wherein: the accommodating blind groove penetrates through the iron core along the thickness direction of the iron core, the flexible buffer piece is cylindrical, and the side wall of the flexible buffer piece protrudes out of the end face, close to one end of the armature, of the iron core and is used for abutting against the armature.

5. The relay for reducing suction collision noise according to claim 4, wherein: the holding blind groove is in an elliptic cylinder shape, the short shaft end of the holding blind groove penetrates through the end face of the iron core close to one end of the armature, the length of the long shaft end of the holding blind groove is larger than the diameter of the flexible buffer piece, and the opening width of the holding blind groove penetrating through the end face of the iron core close to one end of the armature is smaller than the diameter of the flexible buffer piece.

6. The relay for reducing suction collision noise according to claim 3, wherein: the electro-magnet still includes insulating skeleton, and the iron core is installed in insulating skeleton and stretches out insulating skeleton's terminal surface suddenly, and outside the blind groove of holding was located insulating skeleton, insulating skeleton was equipped with two separation blades, and the one end that the iron core stretches out insulating skeleton suddenly was located between two separation blades, and two separation blades are used for respectively hiding the opening at the blind groove both ends of holding in order to encapsulate flexible bolster in the blind groove of holding.

7. The relay for reducing suction impact noise according to claim 6, wherein: the electromagnet further comprises a yoke, the yoke is arranged on the insulating framework and is L-shaped, one end of the yoke is in contact with one end, far away from the accommodating blind groove, of the iron core, the other end of the yoke and one end, attracting the armature, of the iron core are arranged at intervals, and the movable spring is arranged at the other end of the yoke; the armature is provided with a first stop block and a second stop block which protrude out of the lower surface of the armature, the lower surface of the armature is abutted against the end surface of the other end of the yoke, and the first stop block and the second stop block are positioned on two sides of the yoke; the first stop block protrudes out of the side surface of the yoke, the movable spring is provided with a stop part for stopping the first stop block, and the stop part stops the first stop block so that the lower surface of the armature is abutted against the yoke.

8. The relay for reducing noise of suction collision according to claim 7, wherein: the movable spring is provided with an opening, the stopping part is a part of the side wall of the opening, and the first stopping block protrudes out of the side surface of the yoke and then enters the opening.

9. The relay for reducing noise of suction collision according to claim 7, wherein: and one end of the movable spring, which is far away from the yoke, is provided with a movable point block and an elastic contact, the elastic contact and the movable point block are respectively positioned at two sides of the movable spring, the movable point block is used for switching on or off the first static terminal, and the elastic contact is used for switching on the second static terminal of the relay.

10. The relay for reducing suction impact noise according to claim 9, wherein: one side of the elastic contact, which is far away from the moving point block, is provided with a spherical bulge, and the spherical bulge is used for contacting and conducting a second static terminal of the relay.