Push rod relay

By setting a bent spring sheet on the moving spring sheet to contact the push plate, the rebound energy of the moving spring sheet is absorbed, which solves the problem of reduced lifespan caused by relay contact bounce, and achieves the effect of reducing bounce and increasing service life.

CN223785099UActive Publication Date: 2026-01-09YUEQING MEISHUO ELECTRIC
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Patent Information

Application Number
CN202520144491.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2026-01-09
Estimated Expiration
2035-01-22

AI Technical Summary

Technical Problem

Existing relay contacts often exhibit bouncing phenomena due to electromagnetic induction and mechanical impact during the closing or opening process, resulting in prolonged connection and disconnection times, contact erosion, and reduced service life.

Method used

A bent spring is set on the moving spring. The contact between the bent spring and the push plate absorbs the reverse motion energy of the moving spring, reducing rebound. A transmission component drives the moving spring to move, so that it contacts or separates from the stationary spring. The electromagnetic effect of the magnetic circuit drive component is used to quickly absorb the rebound potential energy of the moving spring, thus playing a buffering role.

Benefits of technology

This reduces the bounce of the moving spring, lowers the possibility of contact corrosion, extends the service life of the relay, and improves safety and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a push-rod relay, which relates to the technical field of relays, aims to solve the problem that a conventional relay contact bounces many times, and comprises a base, a static reed, a movable reed and a magnetic circuit driving assembly which are vertically arranged on the base, and a transmission assembly arranged between the movable reed and the magnetic circuit driving assembly, the magnetic circuit driving assembly enables the transmission assembly to swing by attracting the transmission assembly, the transmission assembly drives the movable contact spring to move in the swing state so that the movable contact spring can make contact with or be separated from the static contact spring, the movable contact spring is provided with a bent elastic piece used for slowing down the bounce effect of the movable contact spring, and the transmission assembly is provided with a pushing plate matched with the bent elastic piece. And the rebound of the movable contact spring can be reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to relay technical field more specifically, relate to a push rod relay. BACKGROUND

[0002] The relay contact bounce refers to the phenomenon that the relay contact appears multiple instantaneous contacts and separations due to the electromagnetic induction and mechanical impact and other factors during the closing or opening process.

[0003] The arc is often generated between the relay contacts, which can ablate the relay contacts and the components around the contacts. The contact bounce phenomenon can cause the relay contact and separation time to be prolonged, and the long-time arc burning can increase the possibility of the contact erosion, even produce secondary arc burning, and reduce the service life of the relay.

[0004] Therefore, how to solve the problem of the existing relay contact bounce is the problem to be solved by the technical personnel in the field. UTILITY MODEL CONTENT

[0005] Therefore, the utility model aims at providing a push rod relay, which can reduce the bounce of the moving spring piece.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A push rod relay, comprising a base, a static spring piece vertically arranged on the base, a moving spring piece and a magnetic circuit driving assembly, further comprising a transmission assembly arranged between the moving spring piece and the magnetic circuit driving assembly, the magnetic circuit driving assembly attracts the transmission assembly to make the transmission assembly swing, the transmission assembly drives the moving spring piece to move in the swinging state, so that the moving spring piece contacts or separates from the static spring piece, the moving spring piece is provided with a bent spring piece for slowing down the bounce of the moving spring piece, and the transmission assembly is provided with a push plate matched with the bent spring piece.

[0008] Preferably, the moving spring piece is a bent structure with an inclination, and the end of the moving spring piece away from the base is inclined towards the push plate.

[0009] Preferably, the end of the moving spring piece away from the base is bent towards the push plate to form an elastic lamination partially overlapped with the moving spring piece, and the elastic lamination is provided with the bent spring piece.

[0010] Preferably, the bent spring piece is arranged on the elastic lamination with an opening facing the base, and the bent spring piece is arranged at an acute angle with the elastic lamination.

[0011] Preferably, the bent spring piece is arranged on the elastic lamination with an opening away from the base, and the bent spring piece is arranged at an acute angle with the elastic lamination.

[0012] Preferably, the middle part of the moving spring piece is provided with limiting grooves on both sides.

[0013] Preferably, the moving spring sheet and the elastic sheet are provided with mounting holes for mounting the moving contact, the mounting holes are located in the middle of the elastic sheet, the bent spring sheet is located on the top of the mounting hole, and the static spring sheet is provided with static contacts corresponding to the moving contact.

[0014] Preferably, the transmission assembly comprises a push rod and an armature, the armature is in an inverted L-shaped structure, one end of the armature is swingably arranged on the push rod, and the other end of the armature is rotationally connected to the magnetic circuit driving assembly through a compression spring.

[0015] Preferably, the end of the push rod close to the moving spring sheet is provided with a push plate, both sides of the push plate are provided with plug-in plug-in parts arranged in limiting grooves, the middle bottom of the push rod is slidably connected to the middle of the base, and the end of the push rod away from the moving spring sheet is provided with a positioning groove for inserting the armature, and the push rod is swingably arranged in the positioning groove.

[0016] Preferably, the magnetic circuit driving assembly comprises a driving coil and a yoke, and the armature is swingably arranged on the top end of the yoke.

[0017] The push rod relay comprises a static spring sheet, a moving spring sheet and a magnetic circuit driving assembly arranged vertically on a base, a transmission assembly arranged between the moving spring sheet and the magnetic circuit driving assembly, the magnetic circuit driving assembly attracts the transmission assembly to make the transmission assembly swing, the transmission assembly drives the moving spring sheet to move in a swing state, the moving spring sheet contacts or separates from the static spring sheet, the electromagnetic action of the magnetic circuit driving assembly makes the transmission assembly push the moving spring sheet, forces the moving spring sheet to deviate from the initial position and be pressed, generates a certain bending deformation in the direction opposite to the magnetic circuit driving assembly, makes the moving spring sheet contact the static spring sheet, and makes the moving spring sheet form the rebound potential energy when being released, when the magnetic circuit driving assembly is powered off, the transmission assembly loses the electromagnetic force attracted by the magnetic circuit driving assembly, the moving spring sheet rebounds under the action of the rebound potential energy, the moving spring sheet separates from the static spring sheet, the moving spring sheet is provided with a bent spring sheet for slowing down the bouncing action of the moving spring sheet, the transmission assembly is provided with a push plate matched with the bent spring sheet, when the electromagnetic attraction is weakened and the rebound potential energy of the passive spring sheet is overcome, the moving spring sheet rebounds to the side of the magnetic circuit driving assembly, through the contact of the bent spring sheet and the push plate, the push plate can quickly absorb the potential energy of the rebound of the moving spring sheet, plays a buffering role, and thus reduces the rebound of the moving spring sheet. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the provided drawings.

[0019] Figure 1A structure schematic view of the push rod relay provided by the utility model is provided.

[0020] Figure 2 A sectional view of the push rod relay provided by the utility model is provided.

[0021] Figure 3 A structure schematic view of one embodiment of the moving spring sheet provided by the utility model is provided.

[0022] Figure 4 A front view of Figure 3

[0023] Figure 5 A structure schematic view of another embodiment of the moving spring sheet provided by the utility model is provided.

[0024] Figure 6 A front view of Figure 5

[0025] Figure 7 A structure schematic view of the push rod provided by the utility model is provided.

[0026] Reference signs:

[0027] 1 - base;

[0028] 2 - static spring sheet;

[0029] 3 - moving spring sheet, 31 - bent spring sheet, 32 - elastic sheet, 33 - limiting groove, 34 - mounting hole;

[0030] 4 - magnetic circuit driving assembly, 41 - driving coil, 42 - yoke;

[0031] 5 - transmission assembly, 51 - push plate, 52 - push rod, 521 - plug-in part, 522 - positioning groove, 53 - armature, 54 - compression spring;

[0032] 6 - moving contact;

[0033] 7 - static contact. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0035] ​​In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should be understood in broad sense, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be the communication inside two elements.For the ordinary skilled in the art, the above terms can be understood according to the specific meaning of the utility model.

[0036] It should be noted that the "up, down" and other orientation words in the following are defined based on the drawings attached to the specification.

[0037] In relay structure, especially push rod type relay structure, the attraction between the moving contact of moving assembly and the static contact of static spring assembly is realized by the pushing of armature to moving spring under electromagnetic attraction.In the process of electromagnetic attraction, the turning action of armature is converted into the pushing action to moving spring, forcing moving spring to deviate from the initial position and be pressed, generating certain bending deformation in the direction opposite to armature, forming the rebound potential energy in release.When the electromagnetic attraction is weakened and the rebound potential energy of passive spring is overcome, the moving spring rebounds to the side of armature.Under the influence of deformation rebound of moving spring and movement inertia of moving contact, it will produce large amplitude rebound and anti-rebound swing towards the side of magnetic circuit part, and in the process of anti-rebound, it is easy to make the moving contact and the static contact produce the secondary contact of non-technical requirements, affecting the service life of relay (ablation phenomenon).

[0038] The core of the utility model is to provide a kind of push rod relay, by being provided with bending spring 31 on moving spring 3, by the contact of bending spring 31 and push plate 51, to resist moving spring 3, absorb the kinetic energy of the opposite direction movement of moving spring 3, play the role of buffer, reduce the amplitude of moving spring 3, can reduce the bounce of moving spring 3, reduce the possibility of contact being eroded, increase the service life of relay.

[0039] Please refer to Figure 1 And Figure 2The push rod relay comprises a base 1, a static spring sheet 2 vertically arranged on the base 1, a dynamic spring sheet 3 and a magnetic circuit driving assembly 4, and further comprises a transmission assembly 5 arranged between the dynamic spring sheet 3 and the magnetic circuit driving assembly 4. The magnetic circuit driving assembly 4 is attracted to the transmission assembly 5 to make the transmission assembly 5 swing. The transmission assembly 5 drives the dynamic spring sheet 3 to move in the swing state, so that the dynamic spring sheet 3 contacts or separates from the static spring sheet 2. Through the electromagnetic action of the magnetic circuit driving assembly 4, the transmission assembly 5 pushes the dynamic spring sheet 3, so that the dynamic spring sheet 3 deviates from the initial position and is pressed to produce a certain bending deformation in the direction opposite to the magnetic circuit driving assembly 4, so that the dynamic spring sheet 3 contacts the static spring sheet 2 and forms the rebound potential energy of the dynamic spring sheet 3 in the release state. When the magnetic circuit driving assembly 4 is powered off, the transmission assembly 5 loses the electromagnetic force attracted by the magnetic circuit driving assembly 4, and the dynamic spring sheet 3 rebounds under the action of the rebound potential energy, so that the dynamic spring sheet 3 separates from the static spring sheet 2. The dynamic spring sheet 3 is provided with a bent spring sheet 31 for slowing down the rebound of the dynamic spring sheet 3. The transmission assembly 5 is provided with a push plate 51 matched with the bent spring sheet 31. When the electromagnetic attraction is weakened and the rebound potential energy of the dynamic spring sheet 3 is overcome, the dynamic spring sheet 3 rebounds to the side of the magnetic circuit driving assembly 4. Through the contact of the bent spring sheet 31 and the push plate 51, the push plate 51 can quickly absorb the rebound potential energy of the dynamic spring sheet 3, so as to play a buffering role, thereby reducing the rebound of the dynamic spring sheet 3.

[0040] The push plate 51 is formed in a flat plate structure in the vertical direction without affecting the horizontal pushing action of the push plate 51 between the armature 53 and the dynamic spring sheet 3, so as not to affect the horizontal pushing of the push plate 51 to the dynamic spring sheet 3, and can effectively limit the rebound of the dynamic spring sheet 3 in the switching process and prevent the rebound of the dynamic spring sheet 3 in the release process from causing the secondary connection between the movable contact 6 and the static contact 7. The top end of the push plate 51 is higher than the top end of the dynamic spring sheet 3, so that the plate body of the push plate 51 is transversely arranged between the dynamic spring sheet 3 and the magnetic circuit driving assembly 4, thereby increasing the creepage distance and playing an insulation isolation effect, so as to be safer and more reliable.

[0041] The push rod relay arranged in the above manner can make the dynamic spring sheet 3 contact the push plate 51 through the bent spring sheet 31 on the dynamic spring sheet 3 in the release process of the relay, so as to play a buffering role and reduce the rebound.

[0042] In the above embodiment, the dynamic spring sheet 3 has a bent structure with an inclination, and the end of the dynamic spring sheet 3 away from the base 1 is inclined to the direction close to the push plate 51.

[0043] It should be noted that the bottom end of the dynamic spring sheet 3 can be fixed on the base 1, and the end of the dynamic spring sheet 3 away from the base 1 is inclined to the direction close to the push plate 51. The middle part of the dynamic spring sheet 3 is connected by the transmission assembly 5, so that the transmission assembly 5 can transmit the electromagnetic force of the magnetic circuit driving assembly 4 to the dynamic spring sheet 3 to drive the dynamic spring sheet 3 to move.

[0044] In the above case, the end of the moving spring 3 away from the base 1 is bent towards the push plate 51 to form an elastic lamination 32 partially overlapping the moving spring 3, and the elastic lamination 32 is provided with a bent elastic piece 31.

[0045] It can be understood that the elastic lamination 32 is provided on the moving spring 3, and the bent elastic piece 31 is opened on the elastic lamination 32. The bent elastic piece 31 partially collides with the push plate 51 on the transmission assembly 5 during the release process, and the collision energy is absorbed by the elasticity of the bent elastic piece 31 itself, so that the moving spring 3 reduces the bounce. The moving spring 3 in the application is composed of multiple spring laminations, and can be elastically deformed and deviated under pressure.

[0046] Please refer to Figure 3 and Figure 4 , the bent elastic piece 31 is opened on the elastic lamination 32 with the opening facing the base 1, and the bent elastic piece 31 is arranged at an acute angle with the elastic lamination 32. The bent elastic piece 31 and the moving spring 3 form a downward-opening shock-absorbing structure, and the bent elastic piece 31 and the moving spring 3 form an acute angle. When the transmission assembly 5 is driven to swing by the magnetic circuit driving assembly 4, the moving spring 3 is pushed to move, so that the moving spring 3 contacts the static spring 2. When the magnetic circuit driving assembly 4 is powered off, the transmission assembly 5 loses the electromagnetic force attracted by the magnetic circuit driving assembly 4. The moving spring 3 rebounds under the action of the rebound potential energy. Through the contact between the bent elastic piece 31 and the push plate 51, the push plate 51 can quickly absorb the potential energy of the rebound of the moving spring 3, play a buffering role, and thus reduce the bounce of the moving spring 3.

[0047] Please refer to Figure 5 and Figure 6 , the bent elastic piece 31 is opened on the elastic lamination 32 with the opening facing away from the base 1, and the bent elastic piece 31 is arranged at an acute angle with the elastic lamination 32. The bent elastic piece 31 and the moving spring 3 form an upward-opening shock-absorbing structure, and the bent elastic piece 31 and the moving spring 3 form an acute angle. When the transmission assembly 5 is driven to swing by the magnetic circuit driving assembly 4, the moving spring 3 is pushed to move, so that the moving spring 3 contacts the static spring 2. When the magnetic circuit driving assembly 4 is powered off, the transmission assembly 5 loses the electromagnetic force attracted by the magnetic circuit driving assembly 4. The moving spring 3 rebounds under the action of the rebound potential energy. Through the contact between the bent elastic piece 31 and the push plate 51, the push plate 51 can quickly absorb the potential energy of the rebound of the moving spring 3, play a buffering role, and thus reduce the bounce of the moving spring 3.

[0048] On the basis of the above two embodiments, the length of the bent elastic piece 31 of the first embodiment is much greater than the length of the bent elastic piece 31 of the second embodiment, and the shock-absorbing effect is better.

[0049] On the basis of the above embodiment, the middle part of the moving spring 3 is provided with a limiting groove 33 on both sides.

[0050] It should be noted that the limiting groove 33 is used to connect with the transmission assembly 5 so that the transmission assembly 5 can push the moving spring 3 to move under the electromagnetic force of the magnetic circuit drive assembly 4.

[0051] In the above embodiment, the moving spring 3 and the elastic plate 32 are provided with mounting holes 34 for mounting the moving contact 6. The mounting holes 34 are located in the middle of the elastic plate 32, the bent spring 31 is located at the top of the mounting holes 34, and the stationary spring 2 is provided with a stationary contact 7 corresponding to the moving contact 6.

[0052] It is understandable that the stationary contact 7 is riveted into the mounting hole 34 of the stationary spring 2, and the moving contact 6 is riveted into the mounting hole 34 of the moving spring 3.

[0053] In a preferred embodiment, the transmission assembly 5 includes a push rod 52 and an armature 53. The armature 53 has an inverted L-shaped structure. One end of the armature 53 is swayably mounted on the push rod 52, and the other end of the armature 53 is rotatably connected to the magnetic circuit drive assembly 4 through a compression spring 54.

[0054] It should be noted that the armature 53 and the magnetic circuit drive assembly 4 can be rotatably connected through the compression spring 54. The bottom of the stationary spring 2 has a guide end that extends to the bottom of the base 1, allowing the stationary spring 2 to be installed and connected to the circuit board through the guide end. When the drive coil 41 of the magnetic circuit drive assembly 4 is energized, the armature 53 will push the push rod 52 to move under the drive of electromagnetic force. The moving spring 3 will make conductive contact with the stationary spring 2 under the drive of the push rod 52, thereby increasing the contact force between the moving and stationary contacts.

[0055] Please refer to Figure 7 The push rod 52 has a push plate 51 at one end near the moving spring 3. The push plate 51 has pluggable insertion parts 521 on both sides that are located in the limiting groove 33. The bottom middle part of the push rod 52 is slidably connected to the middle part of the base 1. The push rod 52 has a positioning groove 522 at the end away from the moving spring 3 for inserting the armature 53. The push rod 52 is swayably located in the positioning groove 522.

[0056] By providing two insertion parts 521 on both sides of the front end of the push rod 52, a positioning fit is achieved between the push rod 52 and the moving spring 3 simply by inserting the insertion parts 521 of the push rod 52 into the limiting groove 33. This provides good installation stability, allowing the moving spring 3 to elastically shift towards the side closer to the stationary spring 2 under the action of the push rod 52. Furthermore, when the moving spring 3 is disconnected from the stationary spring 2, the push rod 52 can be reset under the elastic force of the moving spring 3. This assembly between the push rod 52 and the moving spring 3 is also relatively simple and convenient, suitable for automated assembly production, and improves installation efficiency. By providing a positioning groove 522 on the push rod 52, one end of the armature 53 is inserted into the positioning groove 522, thereby achieving a transmission connection between the armature 53 and the push rod 52. This design facilitates installation and connection, and ensures reliable transmission.

[0057] Further, the magnetic circuit driving assembly 4 comprises a driving coil 41 and a yoke 42, and the armature 53 is swingably arranged at the top end of the yoke 42.

[0058] The magnetic circuit driving assembly 4 comprises the driving coil 41 and the yoke 42, and the armature 53 is swingably connected to the upper end of the yoke 42 and is provided with the compression spring 54 between the yoke 42. When the driving coil 41 is energized, an electromagnetic force is generated to attract the armature 53, so that the armature 53 pushes the push rod 52 to move towards the side close to the static spring sheet 2 under the action of the electromagnetic force.

[0059] By arranging the reciprocating push rod 52 on the base 1, the base 1 is slidably connected with the bottom of the push rod 52, the insertion part 521 of the push rod 52 is connected with the middle part of the dynamic spring sheet 3, and then when the armature 53 and the dynamic spring sheet 3 are assembled, the armature 53 is connected with the push rod 52 through the obliquely extending driving part, and the dynamic spring sheet 3 is connected with the push rod 52 in linkage, so that the reciprocating push rod 52 transmits the motion and force between the armature 53 and the dynamic spring sheet 3. When the driving coil 41 is energized to generate an electromagnetic force, the armature 53 is attracted to swing, the push rod 52 is pushed by the armature 53 to drive the dynamic spring sheet 3 to contact the static spring sheet 2, and when the driving coil 41 is de-energized, the push rod 52 is reset and moved under the elastic force of the dynamic spring sheet 3.

[0060] The relay structure is more compact, the self size is smaller, the transmission is reliable, the assembly efficiency is improved, and the production cost is reduced.

[0061] In the embodiment, the mounting sliding groove is arranged on the base 1 along the length direction of the base 1, and the push rod 52 is reciprocatingly arranged in the mounting sliding groove through the guide structure. The mounting sliding groove and the guide structure play the roles of installation and motion guidance for the push rod 52 on the base 1, so that the push rod 52 reciprocates along the length direction of the base 1 in the mounting sliding groove, the position deviation of the push rod 52 during reciprocation is prevented, the transmission is reliable, and the installation stability is good.

[0062] When the two ends of the coil are energized, the excitation current of the coil generates a magnetic flux, the magnetic flux passes through the magnetic circuit composed of the iron core, the armature 53, the yoke 42 and the working air gap, and generates an electromagnetic attraction force in the working air gap; when the excitation current rises to a set value, the electromagnetic attraction torque will overcome the counter-torque of the dynamic spring sheet 3, so that the armature 53 swings on the yoke 42 to generate a pushing force to the push plate 51 towards the side of the dynamic spring sheet 3, the push plate 51 pushes the dynamic spring sheet 3 transversely, so that the movable contact 6 of the dynamic spring sheet 3 is closed with the static contact 7 of the static spring sheet 2; when the excitation current decreases to a set value, the counter-torque of the dynamic spring sheet 3 is greater than the electromagnetic attraction torque, so that a pushing force is generated to the push plate 51 towards the side of the coil, the push plate 51 pushes the armature 53 transversely, so that the armature 53 returns to the initial state, and the movable contact 6 of the dynamic spring sheet 3 is disconnected with the static contact 7 of the static spring sheet 2.

[0063] In conclusion, the push rod relay provided by the utility model has the functions of buffering and slowing down the bounce in the release process of the relay, can reduce the bounce distance and bounce time after the contact is released, has the effect of quickly extinguishing arc, and prolongs the service life of the relay.

[0064] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity from another without necessarily requiring or implying any actual relationship or order between or among the entities.

[0065] The embodiments are described progressively in the specification, and each embodiment focuses on the differences from other embodiments, and the same or similar parts of the embodiments can be mutually referred to.

[0066] The push rod relay provided by the utility model is described in detail above. The principle and implementation mode of the utility model are described by applying specific examples in this paper, and the description of the above embodiments is only used to help understand the method and core idea of the utility model. It should be pointed out that the ordinary skilled in the art can make several improvements and modifications to the utility model without departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. A push rod relay characterized by, The utility model provides a kind of spring contactor, including base (1), vertical static spring leaf (2) of base (1) on, dynamic spring leaf (3) and magnetic circuit drive component (4), it further includes the transmission component (5) between the dynamic spring leaf (3) and the magnetic circuit drive component (4), the magnetic circuit drive component (4) is by attracting the transmission component (5), to make the transmission component (5) swing, the transmission component (5) in swing state drives the dynamic spring leaf (3) to move, make the dynamic spring leaf (3) with the static spring leaf (2) contact or separate, the dynamic spring leaf (3) is equipped with the bending spring leaf (31) for slowing down the dynamic spring leaf (3) bounce effect, the transmission component (5) is equipped with the push plate (51) with the bending spring leaf (31) cooperation.

2. The push rod relay according to claim 1, characterized in that The dynamic spring leaf (3) is a bending structure with an inclination, and an end of the dynamic spring leaf (3) away from the base (1) is inclined towards the push plate (51).

3. The push rod relay according to claim 2, wherein The end of the dynamic spring leaf (3) away from the base (1) is bent towards the push plate (51) to form an elastic lamination (32) partially overlapping the dynamic spring leaf (3), and the elastic lamination (32) is provided with the bending spring leaf (31).

4. The push rod relay of claim 3, wherein The bending spring leaf (31) is provided on the elastic lamination (32) and has an opening facing the base (1), and the bending spring leaf (31) is arranged at an acute angle with the elastic lamination (32).

5. The push rod relay of claim 3, wherein, The bending spring leaf (31) is provided on the elastic lamination (32) and has an opening away from the base (1), and the bending spring leaf (31) is arranged at an acute angle with the elastic lamination (32).

6. The push rod relay of claim 3, wherein, Limiting grooves (33) are provided on both sides of the middle part of the dynamic spring leaf (3).

7. The push rod relay according to any one of claims 3 to 6, characterized in that Mounting holes (34) for mounting a movable contact (6) are provided on the dynamic spring leaf (3) and the elastic lamination (32), the mounting holes (34) are located in the middle part of the elastic lamination (32), the bending spring leaf (31) is located at the top of the mounting holes (34), and a static contact (7) corresponding to the movable contact (6) is provided on the static spring leaf (2).

8. The push rod relay of claim 6, wherein, The transmission component (5) includes a push rod (52) and an armature (53), the armature (53) is in an inverted L-shaped structure, one end of the armature (53) is swingably arranged on the push rod (52), and the other end of the armature (53) is rotationally connected to the magnetic circuit drive component (4) through a compression spring (54).

9. The push rod relay of claim 8, wherein, The push rod (52) is provided with the push plate (51) at an end close to the dynamic spring leaf (3), the push plate (51) is provided with plug-in plug-in limiting grooves (33) on both sides, the middle bottom end of the push rod (52) is slidably connected to the middle part of the base (1), and the push rod (52) is provided with a positioning groove (522) for inserting the armature (53) at an end away from the dynamic spring leaf (3), and the push rod (52) is swingably arranged in the positioning groove (522).

10. The push rod relay of claim 9, wherein, The magnetic circuit drive component (4) includes a drive coil (41) and a yoke (42), and the armature (53) is swingably arranged at the top end of the yoke (42).