Armature assembly and relay

Abstract

The application discloses a armature assembly, which comprises a moving spring sheet, an armature and a pushing piece, the moving spring sheet is provided with a moving contact, the armature is provided with a clamping groove, and one side of the clamping groove penetrates through the side edge of the armature and forms a side notch; the pushing piece is located between the moving spring sheet and the armature, the armature, the pushing piece and the moving spring sheet are arranged along the axial direction of the pushing piece, the pushing piece comprises a first end and a second end, the first end can be laterally embedded into the clamping groove from the side notch, and the second end is connected with the moving spring sheet. The armature assembly provided by the application can reduce the poking displacement of the moving spring sheet when the pushing piece is assembled, thereby reducing the deformation of the moving spring sheet and ensuring the parameter stability of the relay. The application further discloses a relay.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, specifically to an armature assembly and a relay. Background Technology

[0002] In the structure of an electromagnetic relay, the connection and assembly of the actuator between the armature and the moving spring is a critical step. Currently, when assembling the actuator in an electromagnetic relay, both ends of the actuator must be inserted into the armature and the moving spring respectively. To prevent the actuator from loosening, there are certain requirements for the insertion depth. During installation, the moving spring needs to be moved to create a significant displacement to make room for installation. However, in some small relays, due to the requirement of high load and small size, the contact gap is designed to be small. The spring material has good conductivity but high rigidity. Large displacement of the moving spring during actuator installation can easily exceed the elastic deformation design range of the moving spring, causing it to deform and not easily rebound, thus altering its initial position and degree of deformation. This affects the normal contact or disengagement between the moving and stationary contacts, resulting in a discrepancy between the actual product and the design, and impacting the reliability and stability of the electromagnetic relay.

[0003] Therefore, existing electromagnetic relays pose a risk of excessive displacement of the moving spring when assembling the actuator, and improvements need to be made in the structural design or assembly process to avoid this problem. Utility Model Content

[0004] The purpose of this utility model is to disclose an armature assembly that can reduce the displacement of the moving spring during the assembly of the pusher, thereby reducing the deformation of the moving spring and ensuring the stability of the relay parameters.

[0005] To achieve the above objectives, this utility model discloses an armature assembly, including: a movable spring, an armature, and a pusher. The movable spring is provided with a movable contact, and the armature is provided with a slot, one side of which penetrates the side of the armature and forms a side groove. The pusher is located between the movable spring and the armature. The armature, the pusher, and the movable spring are arranged along the axial direction of the pusher. The pusher includes a first end and a second end. The first end can be laterally inserted into the slot from the side groove, and the second end is connected to the movable spring.

[0006] As an alternative implementation, the slot extends from the side portion of the armature along the width direction of the armature to the middle portion of the armature; or,

[0007] The slot includes a first slot segment and a second slot segment. The first slot segment is closer to the side of the armature than the second slot segment. The first slot segment extends at an angle toward the second slot segment and connects with the second slot segment. The extension direction of the second slot segment is consistent with the width direction of the armature. The first end is inserted into the second slot segment.

[0008] As an optional implementation, a slot is provided at the first end along the axial direction of the pusher, and extends out of the slot.

[0009] As an optional implementation, the pusher also includes:

[0010] The first protrusion is formed as the first end;

[0011] The second protrusion is formed as the second end; and

[0012] The first and second protrusions are provided on two opposite sides of the rod body;

[0013] The movable spring is provided with a socket, and the second protrusion passes through the socket at least partially and extends out of the socket.

[0014] As an optional implementation, the armature includes:

[0015] base; and

[0016] Two spaced-apart sidewalls are fixed to the base and together with the base form a slot with a side groove opening.

[0017] The first protrusion has at least one side that can fit against and slide on the sidewall.

[0018] In one embodiment, the cross-sectional area of ​​the second protrusion on the side closer to the rod is greater than the cross-sectional area on the side farther from the rod, and the central axis of the second protrusion is perpendicular to the cross-section of the second protrusion.

[0019] As an optional implementation, the rod includes:

[0020] The main body, both the first and second protrusions are fixedly connected to the main body; and

[0021] The first thickened portion is located on the side of the main body near the first protrusion and on the side of the main body facing away from the side groove.

[0022] As an optional implementation, the rod also includes:

[0023] The second thickening portion is provided on the side of the main body near the second protrusion and on the side of the main body near the moving contact. The second thickening portion extends along the axial direction of the main body.

[0024] As an optional implementation, the rod also includes:

[0025] The grip portion is located between the first protrusion and the second protrusion, protruding onto the main body, and a groove is provided on the edge of the grip portion away from the main body.

[0026] Based on the same concept, this utility model also discloses a relay, which is used in the above-mentioned armature assembly.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] The armature assembly of this invention features a pusher located between the movable spring and the armature. Its first end can be inserted into a slot in the armature via a side groove on the side of the armature, and its second end connects to the movable spring. This structure allows the pusher to be laterally inserted into the slot during installation, meaning the displacement of the movable spring only needs to consider the displacement required when the second end of the pusher connects to the movable spring. This assembly method significantly reduces the stress and deformation of the movable spring during assembly, minimizing the risk of excessive displacement and ensuring the accuracy of the initial position and deformation degree of the movable spring. Other beneficial effects are illustrated in the specific embodiments. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall structure of the relay of this utility model;

[0031] Figure 2 This is an assembly diagram of the armature assembly of this utility model;

[0032] Figure 3 This is a schematic diagram of the assembly of the armature and the pusher in this utility model;

[0033] Figure 4 This is a first-view structural schematic diagram of the pushing component in this utility model;

[0034] Figure 5 This is a structural schematic diagram of the pushing component from a second perspective in this utility model;

[0035] Figure 6 This is a schematic diagram of the armature structure in this utility model.

[0036] Explanation of key figure labels:

[0037] 100. Relay; 10. Electromagnetic component; 11. Coil; 12. Iron core; 13. Yoke; 20. Contact part; 21. Moving spring; 22. Stationary spring; 23. Moving contact; 24. Stationary contact; 30. Armature; 31. Slot; 32. Side slot; 33. Base; 34. Side wall; 35. Engaging part; 40. Base; 50. Pushing element; 51. First protrusion; 52. Second protrusion; 53. Rod; 531. First thickened part; 532. Second thickened part; 533. Main body; 534. Grip part; 535. Groove. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0040] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0041] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0042] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0043] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0044] This application provides a relay 100, which is an electrical control device that causes a predetermined step change in the controlled quantity in the electrical output circuit when the change in the excitation quantity (such as voltage, current, temperature, etc.) reaches a specified requirement. It plays a role in automatic adjustment, safety protection, and switching circuits in the electrical output circuit. Its applications are wide-ranging, covering fields such as industrial automation control, smart homes, automotive electronics, and communication equipment, enabling precise control and safety protection of complex systems.

[0045] In the structural design and assembly of relay 100, the precision of the coordinated operation of core components is crucial. Related technologies refer to... Figure 1 and Figure 2 The relay 100 includes a base 40, an electromagnetic component 10, an armature 30, a pusher 50, and a contact portion 20. The electromagnetic component 10 and the contact portion 20 are both mounted on the base 40. The functional definition, connection relationship, and role of each component in the working system of the relay 100 will be described in detail below.

[0046] An electromagnetic component 10 is used to actively generate a magnetic field. In this embodiment, the electromagnetic component 10 includes a yoke 13, a coil 11, and an iron core 12. The iron core 12 is made of a soft magnetic material (such as silicon steel), which has good magnetic permeability and can effectively concentrate and conduct the magnetic field, laying the foundation for the formation of the magnetic field. The coil 11 is typically wound with insulated wire around the iron core 12. When the coil 11 is powered on, the current flowing through the wire generates a magnetic field around it, and the iron core 12 is magnetized, thus enhancing the magnetic field strength.

[0047] It is worth mentioning that in other embodiments, the iron core 12 can be replaced with a permanent magnet. The inherent magnetic field characteristics of the permanent magnet are used to provide a basic magnetic field. The magnetic field generated by the coil 11 being energized is superimposed or canceled by the magnetic field of the permanent magnet, thereby adjusting the total magnetic field strength.

[0048] The contact portion 20 is used to control the on / off state of the electrical output circuit. It includes a moving spring 21 and a stationary spring 22, which are spaced apart on one side of the electromagnetic assembly 10. The moving spring 21 has a moving contact 23, and the stationary spring 22 has a stationary contact 24. Alternatively, in other embodiments, the stationary spring 22 can be omitted, and the stationary contact 24 can be optionally disposed on the base 40 and electrically connected to a conductive terminal to form a conductive path. The moving spring 21, due to its elastic deformation characteristics, drives the moving contact 23 to contact or separate from the stationary contact 24 under external driving force, thereby completing the on / off state of the electrical output circuit.

[0049] The armature 30 is a movable component driven by a magnetic field. Typically, the armature 30 is rotatably positioned relative to the yoke 13 and is constrained to the yoke 13 by a compression spring. A portion of the armature 30 faces the magnetic poles of the iron core 12, maintaining an appropriate air gap between them to allow the magnetic field to effectively penetrate the air gap and drive the armature's movement. When the armature 30 is magnetized and attracted by the magnetic field generated by the electromagnetic component 10, it overcomes the reset force (such as the elastic reaction force of the moving spring 21 or the elastic reaction force provided by the moving spring 21 and the compression spring) and transmits the force and motion to the moving spring 21, driving the moving contact 23 and the stationary contact 24 to complete the switching action. When the magnetic field weakens or disappears, the armature 30 resets under the action of the reset force, restoring the contacts to their initial state.

[0050] The pusher 50 is used to transmit power. It is located between the movable spring 21 and the armature 30. The armature 30, the pusher 50, and the movable spring 21 are arranged along the axial direction of the pusher 50. One end of the pusher 50 is connected to the armature 30, and the other end of the pusher 50 acts on the movable spring 21. The pusher 50 serves as a force transmission bridge between the armature 30 and the movable spring 21.

[0051] Based on the structural characteristics and synergistic relationship of the above components, the working principle of the relay 100 is as follows: after the electromagnetic component 10 is energized, the current of the coil 11 excites the magnetic field, and the armature 30 moves towards the magnetic pole of the iron core 12 under the action of the magnetic field force, overcoming the reset spring force. At the same time, through the force transmission of the pusher 50, the moving spring 21 is pushed to produce elastic deformation, which drives the moving contact 23 to contact or separate from the stationary contact 24, thereby realizing the circuit on / off control.

[0052] In the above structure, the armature 30, the pusher 50, and the moving spring 21 constitute the armature assembly of this embodiment.

[0053] However, due to the large installation space required to avoid the existing pusher components during assembly, the moving spring may experience displacement beyond its design range. This alters the initial distance or contact pressure between the moving and stationary contacts, leading to increased contact resistance when the contacts are closed, decreased arc suppression capability when open, and even contact adhesion or malfunction. This affects the normal switching function of the contacts and reduces the reliability of the relay 100. This problem is particularly prominent in small relays, becoming one of the key factors restricting the performance improvement of the relay 100.

[0054] To address the issue that existing assembly schemes for the actuator may lead to excessive displacement of the moving spring, this technical solution provides the following structural design, please refer to it. Figures 1 to 6 The armature 30 is provided with a slot 31, one side of which penetrates the side of the armature 30 and forms a side slot 32, creating a channel that allows direct access to the interior of the slot 31 from the side. The pusher 50 includes a first end and a second end. The first end is designed as an insertion part that adapts to the slot width of the slot 31 (the distance between the two opposing inner slot walls of the slot 31), and can be laterally inserted into the slot 31 from the side slot 32, ensuring that the two form a tight mechanical limit after assembly. The second end forms a stable connection with the moving spring 21.

[0055] Because of the presence of the side slot 32, the pusher 50 does not need to be forcibly pressed in from the top or bottom surface of the armature 30. Instead, it is inserted from the side transverse A (in the figure, from the side slot 32 along the extension direction of the slot 31). This means that the assembly process of the pusher 50 is changed from the traditional axial extrusion to the side transverse A insertion, which reduces the amount of extrusion displacement of the pusher 50 on the moving spring 21 in the traditional axial insertion assembly method. Specifically, the presence of the side slot 32 allows the first end of the pusher 50 to be laterally embedded in the slot 31 during assembly. The displacement of the moving spring 21 only needs to consider the displacement required when the second end of the pusher 50 is connected to the moving spring 21. This assembly method significantly reduces the stress deformation of the moving spring 21 during the assembly stage, solves the problem of the moving spring 21 exceeding the displacement limit due to the force applied by the pusher 50, and thus maintains the stability of the initial elastic deformation parameters (such as preload and deformation amplitude) of the moving spring 21. This ensures that the initial distance and contact pressure between the moving contact 23 and the stationary contact 24 meet the design requirements, effectively improving the reliability and service life of the relay 100 contact operation, and is especially suitable for small relays.

[0056] It should be noted that the aforementioned slot 31 and its side slot 32, as the core structure for the cooperation between the armature 30 and the pusher 50, exhibit design flexibility in terms of both adjustable geometric parameters and assembly dimensions. Specifically, the slot 31 can be designed as a non-connected blind slot structure along the axial direction B. By limiting the insertion stroke of the first end of the pusher 50, the solid structure of the slot 31 along the axial direction B forms a rigid stop, precisely controlling the upper limit of the pre-pressure of the pusher 50 on the moving spring 21 and preventing excessive compression. Meanwhile, the slot 31 can also be designed as a connecting slot along the axial direction of the pusher 50, with the axial direction of the pusher 50 aligned with the axial direction A of the slot 31. This allows the first end of the pusher 50 to pass through the slot 31 and extend out to the other side of the slot 31. By adjusting the length of the exposed portion, the preload can be dynamically adjusted. This connecting structure ensures the stability of force transmission while providing a more flexible adjustment margin for the assembly accuracy of the pusher 50 and the armature 30. Both structural forms achieve precise control of the force on the moving spring 21 from a mechanical structure perspective through the axial cooperation between the slot 31 and the pusher 50. This not only meets the differentiated requirements of contact pressure under different working conditions but also avoids the problem of excessive displacement of the moving spring 21 caused by abnormal preload through structural limiting, further improving the reliability and applicability of the relay 100.

[0057] Understandably, the aforementioned slot 31 can extend from the side of the armature 30 along the width direction to form a straight slot structure, so that the first end of the pusher 50 can directly reach the middle part of the armature 30 after being inserted into the slot 31 laterally from the side. Stable insertion is achieved through a linear path from the side to the middle. This straight slot 31 enables rapid assembly of the pusher 50 and the armature 30 with its simple path, which is suitable for scenarios with high installation efficiency requirements; or a composite slot design can be adopted, dividing the slot 31 into at least a first slot segment and a second slot segment, wherein the first slot segment is closer to the armature than the second slot segment. The armature 30 extends at an inclined angle toward the second slot and connects to it. The second slot extends along the width of the armature 30. The first end of the pusher 50 is inserted into the second slot. It should be noted that the extension path of the first slot can be a straight slot or an arc slot. This zigzag structure can guide the first end of the pusher 50 to cut in smoothly through the guiding effect of the inclined section, reducing assembly resistance. When the pusher 50 is inserted, the second slot extending in the width direction automatically corrects the angle, reducing the risk of jamming caused by assembly deviation. It is especially suitable for high-precision assembly requirements.

[0058] After explaining the mating structure between the armature 30 and the pusher 50, the specific construction of the armature 30 will be explained here. In this embodiment, please refer to... Figure 2 , Figure 3 and Figure 6As shown, the armature 30 includes an engaging portion 35, a base 33, and two spaced-apart sidewalls 34. The two sidewalls 34 are fixed to the base 33 (e.g., integrally connected, welded, etc.) and together with the base 33 form a slot 31 with a side groove 32. The sidewalls 34 here are the inner groove walls mentioned above. Their spacing determines the width of the slot 31, which is adapted to the size of the insertion portion at the first end of the pusher 50, forming a tight mechanical limit. The engaging portion 35 is fixed to one of the sidewalls 34 (e.g., integrally connected, welded, etc.), and the engaging portion 35 and the sidewall 34 are set at an angle. This angle is optimized by combining mechanical and magnetic properties, which can ensure that the engaging portion 35 can efficiently capture magnetic lines of force under the action of magnetic field force, and can also provide a reasonable lever arm for the rotation of the armature 30.

[0059] In the overall layout of the relay 100, the attracting part 35 faces the magnetic pole of the magnetic excitation assembly 10, and the two maintain a reasonable air gap to optimize the magnetic field coupling efficiency. The base 33 and the side wall 34 are located on the side of the yoke 13 facing the moving spring 21. The connection between the side wall 34 and the attracting part 35 forms a rotation fulcrum, and this rotation fulcrum is rotatably connected to the cross arm of the yoke 13, allowing the armature 30 to rotate flexibly around this rotation fulcrum. At the same time, this rotation fulcrum is also embedded in the closed magnetic circuit formed by the electromagnetic assembly 10, forming a transition hub between magnetic circuit conduction and mechanical transmission. When the electromagnetic assembly 10 is energized to generate a magnetic field, the armature 30, under the action of the magnetic field force, moves its attracting part 35 toward the magnetic pole and finally fits with it, completing the attracting action of the relay 100. At the same time, the base 33, in conjunction with the side walls 34, drives the pusher 50 in the slot 31 to move synchronously, converting the magnetic field energy into the mechanical force that pushes the moving spring 21, realizing the on / off control of the contacts. This structural design, through the coordinated position of the armature 30 and the yoke 13 and the connection with the magnetic circuit, ensures both the high efficiency of magnetic field conduction and the stability of force transmission through the rigid connection of the mechanical structure, making the armature 30 a precise conversion component between magnetic excitation and mechanical action.

[0060] During the operation of the relay 100, the fitting accuracy between the armature 30 and the pusher 50 directly affects the working state of the moving spring 21 and the performance of the contact portion 20. Both of the aforementioned slot structures achieve the lateral insertion (A) of the pusher 50 through the side slot 32, avoiding the squeezing of the moving spring 21 caused by traditional axial assembly. Furthermore, the assembly space formed by the base 33 and the side wall 34 of the slot 31 allows the rigid support of the side wall 34 to limit the displacement of the pusher 50 in the non-force-bearing direction, ensuring precise transmission of thrust along the axial direction (B) of the slot 31. Understandably, the connection strength between the side wall 34 and the base 33 directly affects the load-bearing capacity of the slot 31. Optimizing the fixing process of both can improve the overall rigidity of the armature 30, preventing deformation of the slot 31 due to stress concentration during high-frequency operation. This ensures stable pre-pressure of the pusher 50 on the moving spring 21, ultimately achieving precise control of the contact pressure and improving the reliability and durability of the relay 100 under different operating conditions.

[0061] In this embodiment, please refer to Figures 1 to 5 The aforementioned pusher 50 includes a first protrusion 51, a second protrusion 52, and a rod 53 connecting the two. The first protrusion 51 forms the first end of the pusher 50, which fits tightly with the slot 31 of the armature 30, achieving precise insertion through the side slot 32, ensuring a stable and reliable starting point for force transmission. The second protrusion 52 forms the second end of the pusher 50, precisely engaging with a pre-set insertion hole on the movable spring 21, at least partially penetrating and extending beyond the insertion hole. This design not only ensures a stable connection between the pusher 50 and the movable spring 21 but also provides precise guidance for the movement of the movable spring 21, ensuring that the movable spring 21 can accurately generate elastic deformation when pushed by the pusher 50, thereby achieving reliable contact and separation between the moving contact 23 and the stationary contact 24. The rod 53 acts as a bridge, protruding the first protrusion 51 and the second protrusion 52 on opposite sides, ensuring the smoothness and continuity of force transmission.

[0062] It should be noted here that, please refer to... Figures 2 to 5The aforementioned first protrusion 51 has at least one side that can fit against and slide on the sidewall 34. This effectively enhances the stability and flexibility of the fit between the first protrusion 51 and the sidewall 34. In practical applications, the first protrusion 51 is designed as a rectangular block structure, with two opposite sides of its four sides able to fit tightly against the sidewall 34 of the slot 31. When the armature 30 moves under the action of the magnetic force, the side of the first protrusion 51 slides smoothly along the sidewall 34 of the slot 31, effectively preventing the pusher 50 from shaking in the slot 31 and ensuring that the force is accurately transmitted along the axial direction B of the slot 31. In other embodiments, some designs incorporate the first protrusion 51 as a trapezoidal structure with a guide ramp. The ramp not only acts as a guide during assembly, guiding the first protrusion 51 to smoothly insert into the slot 31, but also, during the operation of the relay 100, the ramp remains in contact with the inner groove surface of the base 33, allowing for smooth sliding as the armature 30 moves. Furthermore, the ramp's structural characteristics help to disperse stress and reduce wear during sliding.

[0063] In this way, by making the side of the first protrusion 51 slide against the side wall 34 of the slot 31, on the one hand, during the assembly process of the pusher 50 and the armature 30, the guiding effect of the side wall 34 can be used to assist the first protrusion 51 in accurately inserting into the slot 31, reducing the assembly difficulty; on the other hand, when the relay 100 is running, the sliding contact between the side wall 34 and the side of the first protrusion 51 can effectively constrain the movement trajectory of the pusher 50, preventing it from deviating in the non-force direction, and ensuring that the pusher 50 accurately transmits the thrust of the armature 30 to the moving spring 21. As a result, the moving spring 21 is subjected to more stable force, and the action of the moving contact 23 and the stationary contact 24 driven by it to make contact or separation more precise, thereby significantly improving the reliability of the relay 100 contact action, extending the service life of the relay 100, and enabling it to operate stably in high-frequency action or high-precision control scenarios.

[0064] In the design of the connection structure between the pusher 50 and the movable spring 21, please refer to Figures 2 to 5The cross-sectional area of ​​the second protrusion 52 near the rod 53 is larger than that away from the rod 53, and the central axis of the second protrusion 52 is perpendicular to its cross-section. Preferably, the second protrusion 52 is designed in the shape of a frustum of a cone, with its large-diameter end tightly connected to the rod 53 and its small-diameter end inserted into the insertion hole of the movable spring 21. The slope formed by the side of the frustum of a cone allows the second protrusion 52 to form a large contact area with the inner wall of the insertion hole after insertion. When transmitting the thrust of the pusher 50, it can effectively disperse stress and prevent the movable spring 21 from deforming or being damaged due to excessive local stress. In other embodiments, another design is to make the second protrusion 52 into a frustum shape. Its polygonal side not only provides a more stable connection effect, but also, compared to a cylindrical structure, the frustum shape can prevent the second protrusion 52 from rotating in the insertion hole, ensuring the consistency of the force direction of the movable spring 21.

[0065] Based on the structural design of the second protrusion 52, during assembly, the smaller end can easily pass through the socket of the moving spring 21, while the larger end can fit tightly onto the moving spring 21 after passing through the socket. This greatly enhances the connection strength between the pusher 50 and the moving spring 21, effectively preventing the second protrusion 52 from coming out of the socket. When the relay 100 is working, when the armature 30 transmits thrust to the moving spring 21 through the pusher 50, the structure of the second protrusion 52 can evenly distribute the force on the moving spring 21, avoiding stress concentration and ensuring that the elastic deformation of the moving spring 21 is within a reasonable range. This allows the moving contact 23 and the stationary contact 24 to reliably contact or separate, improving the stability and reliability of the relay 100's operation. It also extends the service life of components such as the moving spring 21, enabling it to maintain good working performance under complex operating conditions.

[0066] As the core of force transmission between the armature 30 and the moving spring 21, each part of the pusher 50 plays a crucial role, especially the specific structural design of its rod 53, which directly affects the performance of the relay 100. Please refer to... Figures 2 to 5 The rod 53, as the core component connecting the first protrusion 51 and the second protrusion 52, includes a main body 533 and a first thickened portion 531. The main body 533 serves as the basic frame of the rod 53, and both the first protrusion 51 and the second protrusion 52 are firmly fixed to the main body 533, forming a complete force transmission path for the pusher 50. The first thickened portion 531 is located on the side of the main body 533 near the first protrusion 51 and is positioned at the slot 32 on the opposite side of the main body 533. Preferably, the first thickened portion 531 extends along the axial direction B of the slot 31 and abuts against the base 33 of the armature 30. This design is of great significance in practical applications.

[0067] On the one hand, when the pusher 50 is inserted into the armature 30 slot 31 through the side slot 32, the first thickened portion 531 increases the mass of the end of the pusher 50 facing away from the side slot 32, causing the center of gravity of the pusher 50 to shift in the direction away from the side slot 32. According to the laws of motion, an object tends to maintain a stable center of gravity. When the pusher 50 is subjected to an external force that causes it to disengage in the direction of the side slot 32, since the center of gravity is shifted to the position away from the side slot 32, the pusher 50 needs to overcome a larger torque to disengage, making the pusher 50 more stable in the armature 30 slot 31 and less likely to disengage from the side slot 32. At the same time, since the first thickened portion 531 increases the material thickness of the part of the main body 533 facing away from the side slot 32, the first thickened portion 531 can abut against the base 33 of the armature 30, forming a blocking relationship. This allows the pusher 50 to maintain stable and efficient mechanical properties during the force transmission process between the armature 30 and the moving spring 21, thereby ensuring that the moving spring 21 accurately drives the moving contact 23 to complete the contact or separation action with the stationary contact 24 when it is pushed, effectively improving the overall reliability and durability of the relay 100, and enabling it to operate stably under complex working conditions.

[0068] On the other hand, by adding a first thickening portion 531 at a specific location on the main body 533, not only is the strength of the rod 53 in the critical stress area strengthened, preventing structural damage due to stress concentration, but the assembly compatibility between the pusher 50 and the armature 30 is also optimized, reducing unnecessary friction and interference. For example, in the high-frequency operation scenario of the relay 100, when the armature 30 transmits magnetic force to the pusher 50 through the first protrusion 51, the first thickening portion 531 can effectively enhance the strength of the corresponding part of the main body 533, preventing deformation or breakage of the main body 533 due to frequent stress; also, when the pusher 50 is subjected to stress during assembly, its additional material thickness can evenly distribute stress, ensuring that the main body 533 maintains structural stability during force transmission.

[0069] In this embodiment, in addition to the ingenious design of the first thickened portion 531, please refer to... Figure 4 and Figure 5The rod body 53 also includes a second thickened portion 532, which is located on the side of the main body 533 near the second protrusion 52 and is positioned near the moving contact 23, extending along the axial direction of the main body 533. In practical applications, the extension of the second thickened portion 532 can effectively enhance the structural strength of the rod body 53 in the corresponding area, ensuring that under long-term high-frequency operation, the pusher 50 can stably transmit force to the moving spring 21, ensuring the consistency of the contact pressure between the moving contact 23 and the stationary contact 24, and reducing the risk of circuit failure due to poor contact. For example, when the moving spring 21 drives the moving contact 23 to frequently switch on and off with the stationary contact 24, the pusher 50 needs to continuously and precisely apply the thrust transmitted by the armature 30 to the moving spring 21. During this process, the rod 53 on the side closer to the moving contact 23 is subjected to repeated stress impacts. Furthermore, when the moving spring 21 releases and rebounds, the second thickened portion 532 abuts against the moving spring 21, which can suppress the rebound of the moving spring 21, reduce its rebound duration, frequency, and amplitude, and avoid secondary contact of the contacts. The second thickened portion 532 extends axially, and by increasing the material thickness, it can significantly improve the deformation resistance of this part, preventing the rod 53 from bending or breaking due to long-term stress.

[0070] Furthermore, the axial extension of the second thickened portion 532 optimizes the force distribution of the rod 53, enabling the pusher 50 to distribute stress more evenly during force transmission, reducing local stress concentration and extending the service life of the pusher 50 and other components such as the moving spring 21. Therefore, the design of the second thickened portion 532 effectively improves the overall structural stability and reliability of the pusher 50, allowing the relay 100 to maintain stable performance even under complex electrical environments and frequent operating conditions, effectively enhancing the overall safety and reliability of the equipment.

[0071] As a preferred embodiment, please refer to Figures 2 to 5 The aforementioned rod 53 also includes a gripping part 534 disposed between the first protrusion 51 and the second protrusion 52. This gripping part protrudes from the surface of the main body 533 and has a groove 535 at its edge away from the main body 533. The groove 535 can be constructed in different shapes according to actual application requirements. For example, the groove 535 can be a U-shaped groove. The U-shaped groove has a large opening and moderate depth, which can easily adapt to the hand and various types of auxiliary assembly tools, and can achieve quick gripping and release during rapid assembly. Alternatively, the groove 535 can also be a V-shaped groove, which has better guiding properties. When the tip of the clamp is embedded in it, it can accurately position the angle and position of the pusher 50, ensuring high precision in assembly. The groove 535 can also be a serrated groove. Its irregular edges can generate greater friction with the hand. When a strong grip is required to complete a tight assembly, it can effectively prevent the pusher 50 from slipping, thus improving the reliability of the assembly.

[0072] Understandably, the grip 534 can be a ring-shaped structure surrounding the central axis of the rod 53 and encircling the main body 533. This ring-shaped grip 534 provides a point of leverage for the operator from all directions. During assembly, a stable and balanced grip can be obtained regardless of the angle from which the pusher 50 is grasped, making it particularly suitable for complex assembly processes that require frequent adjustments to the position or angle of the pusher 50. Furthermore, the grip 534 can also be designed to include a first gripping protrusion and a second gripping protrusion protruding from two opposite sides of the main body 533. This symmetrical protrusion structure can precisely guide the operator's force direction. When the pusher 50 needs to be inserted into the armature 30 slot 31 in a specific direction, the operator can precisely control the translation and rotation of the pusher 50 by pinching the first and second gripping protrusions respectively, ensuring that the pusher 50 is stably stressed during assembly and improving assembly efficiency and accuracy.

[0073] In actual production assembly scenarios, the design of the grip 534 and its groove 535 greatly facilitates the installation and adjustment of the pusher 50 by operators. For example, when the first protrusion 51 of the pusher 50 needs to be inserted into the armature 30 slot 31, the operator can directly grip the protruding grip 534. Its convex shape provides a larger force application area. Compared with directly pinching the main body 533 of the slender rod 53, it is easier and more stable to control the insertion direction and force of the pusher 50, avoiding assembly deviations caused by hand slippage. The groove 535 on the edge can be adapted to the hand or various auxiliary assembly tools, such as special tweezers or clamps. The tip of the tweezers can be embedded in the groove 535 to achieve precise clamping. The claws of the clamps can also cooperate with the groove 535 to ensure that the pusher 50 maintains a fixed posture during assembly, improving assembly efficiency and accuracy. For example, during the maintenance and repair of relay 100, staff can also use the grip 534 and its groove 535 to quickly disassemble or replace pusher 50. The presence of groove 535 makes the point of force of the tool clearer, reducing the risk of damage to other parts of pusher 50.

[0074] From the perspective of actual operation of the relay 100, the gripping part 534 does not affect the force transmission function of the pusher 50. Its position between the first protrusion 51 and the second protrusion 52 cleverly avoids the main force path. On the contrary, during the process of the pusher 50 transmitting the thrust of the armature 30 to the moving spring 21, the gripping part 534, because it protrudes from the main body 533, can enhance the overall rigidity of the rod 53 to a certain extent and disperse local stress. At the same time, the groove 535 on the edge can also serve as a stress relief groove without weakening the structural strength, preventing cracks or damage to the rod 53 due to stress concentration, thereby ensuring the stability and reliability of the pusher 50 during long-term use. This design, which takes into account both assembly convenience and structural stability, effectively improves the production efficiency and service life of the relay 100, enabling it to operate stably and efficiently in various electrical equipment.

[0075] The above provides a detailed description of an armature assembly and relay disclosed in the embodiments of this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the armature assembly and relay of this utility model and its core ideas. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An armature assembly, characterized in that, include: A moving reed, on which a moving contact is provided; The armature has a slot, and one side of the slot extends through the side of the armature to form a side slot opening; and A pusher is located between the movable spring and the armature. The armature, the pusher, and the movable spring are arranged along the axial direction of the pusher. The pusher includes a first end and a second end. The first end can be laterally inserted into the slot through the side slot, and the second end is connected to the movable spring.

2. The armature assembly as described in claim 1, characterized in that, The slot extends from the side portion of the armature along the width direction of the armature; or, The slot includes a first slot segment and a second slot segment. The first slot segment is closer to the side of the armature than the second slot segment. The first slot segment extends obliquely toward the second slot segment and connects with the second slot segment. The extension direction of the second slot segment is consistent with the width direction of the armature. The first end is inserted into the second slot segment.

3. The armature assembly as described in claim 1, characterized in that, Along the axial direction of the pusher, the first end passes through the slot and extends out of the slot.

4. The armature assembly as described in claim 1, 2, or 3, characterized in that, The actuating component also includes: The first protrusion is formed as the first end; The second protrusion is formed as the second end; and The rod body has the first protrusion and the second protrusion protruding from two opposite sides of the rod body; The movable spring is provided with a socket, and the second protrusion passes through the socket at least partially and extends out of the socket.

5. The armature assembly as described in claim 4, characterized in that, The armature includes: base; and Two spaced-apart sidewalls are fixed to the base and together with the base form a slot with the side opening. The first protrusion has at least one side that can fit against and slide on the sidewall.

6. The armature assembly as described in claim 4, characterized in that, The cross-sectional area of ​​the second protrusion on the side closer to the rod is greater than the cross-sectional area on the side farther from the rod, and the central axis of the second protrusion is perpendicular to the cross-section of the second protrusion.

7. The armature assembly as described in claim 4, characterized in that, The rod includes: The main body, wherein both the first protrusion and the second protrusion are fixedly connected to the main body; and The first thickened portion is disposed on the side of the main body near the first protrusion, and is located on the side of the main body opposite to the side groove.

8. The armature assembly as described in claim 7, characterized in that, The rod also includes: The second thickened portion is disposed on the side of the main body near the second protrusion and on the side of the main body near the moving contact, and the second thickened portion extends along the axial direction of the main body.

9. The armature assembly as described in claim 7, characterized in that, The rod also includes: The grip portion is located between the first protrusion and the second protrusion, protruding onto the main body, and a groove is provided on the edge of the grip portion away from the main body.

10. A relay, characterized in that, The application has an armature assembly as described in any one of claims 1 to 9.

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