Movable-contact-spring-and-contact structure

Abstract

Disclosed in the present application is a movable-contact-spring-and-contact structure. The movable-contact-spring-and-contact structure comprises a housing, a push rod assembly and a main movable contact spring. The housing has a first side and a second side, which are spaced apart from each other, wherein a first cavity is provided between the first side and the second side. The push rod assembly is disposed in the first cavity, and in the direction of the length, the push rod assembly is provided with a first end and a second end, which are spaced apart from each other, wherein the first end is slidably connected to the first side, and the second end is slidably connected to the second side. The main movable contact spring is disposed in the first cavity, and is connected to the first end.

Description

Moving spring contact structure

[0001] This application claims priority to Chinese patent application No. 202410922298.5, filed on July 10, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of relay technology, and in particular to a moving reed contact structure. Background Technology

[0003] A relay is an electrical control device used in automated control circuits. It uses electromagnetic effects to control mechanical contacts, thereby controlling the on / off state of the circuit. Essentially, it uses a small input current to control a large output current circuit, causing the push rod assembly to move the active spring 22 up and down, thus achieving functions such as automatic switching, automatic adjustment, and circuit switching.

[0004] To ensure the reliability and consistency of the push rod's movement, the active spring section needs to be limited. Existing relays utilize the contact between the active spring and the housing to move the active spring assembly. Due to the difference in hardness between the active spring and the housing, the active spring assembly will wear down over time. Technical issues

[0005] The main objective of this application is to provide a moving spring contact structure that aims to solve the problem of wear in the active spring assembly. Technical solutions

[0006] To achieve the above objectives, this application proposes a movable spring contact structure, the movable spring contact structure comprising:

[0007] A housing having a first side and a second side spaced apart, with a first cavity between the first side and the second side;

[0008] A push rod assembly, wherein the push rod assembly is disposed within the first cavity, and the push rod assembly has a first end and a second end spaced apart along its length, the first end being slidably connected to the first side, and the second end being slidably connected to the second side; and

[0009] An active spring is disposed in the first cavity and connected to the first end.

[0010] In one embodiment, the push rod assembly includes:

[0011] A push rod, which is slidably connected to the second side; and

[0012] The mounting bracket is connected to the push rod and slidably connected to the first side, and the active spring is slidably connected to the mounting bracket.

[0013] In one embodiment, the mounting bracket includes:

[0014] An insulating base, the insulating base being connected to the push rod, and an active spring being elastically connected to the insulating base; and

[0015] A bracket is connected to the insulating base and slidably connected to the first side. The bracket has a sliding cavity, and the active spring is slidably connected inside the sliding cavity.

[0016] In one embodiment, the push rod assembly further includes an anti-magnetic component, which is disposed on both sides of the active spring. The anti-magnetic component includes an upper magnetic conductor and a lower magnetic conductor, with the upper magnetic conductor slidably connected to the first side.

[0017] In one embodiment, the housing is provided with a first side plate, and the upper magnetic conductor is provided with a second side plate, the first side plate and the second side plate being slidably connected.

[0018] In one embodiment, the first side plate is provided with a boss, and the second side plate is provided with a groove. The boss and the groove cooperate to guide the sliding of the active spring.

[0019] In one embodiment, the movable reed contact structure further includes an auxiliary movable reed assembly, the auxiliary movable reed assembly comprising:

[0020] Mounting base, the mounting base connecting bracket, the mounting base and the first side plate enclosing to form a second cavity; and

[0021] An auxiliary moving spring is connected to the mounting base and located within the second cavity.

[0022] In one embodiment, the second side is provided with a through hole and a limiting hole, and the push rod assembly further includes a limiting rod, which is connected to the mounting bracket and arranged parallel to the push rod. The push rod is slidably connected to the through hole, and the limiting rod is slidably connected to the limiting hole.

[0023] In one embodiment, the second side is provided with a through hole and a plurality of limiting holes, the plurality of limiting holes surrounding the through hole, the mounting bracket connecting a push rod and a plurality of limiting rods, and a limiting rod slidably connected to a limiting hole.

[0024] In one embodiment, the housing includes an upper shell and a yoke plate, the yoke plate being the second side, the side of the upper shell away from the yoke plate being the first side, and the yoke plate being connected to the upper shell and forming a first cavity with the upper shell.

[0025] In one embodiment, the moving spring contact structure further includes a driving assembly connected to the side of the yoke plate facing away from the first cavity, and the driving assembly is also connected to the push rod assembly for driving the push rod assembly to move.

[0026] In one embodiment, the driving component includes:

[0027] A metal shell, the metal shell being connected to the yoke plate, the metal shell being provided with a sliding cavity;

[0028] A stationary iron core, wherein the stationary iron core is fixedly connected within the sliding cavity; and

[0029] A moving iron core is movably connected within the sliding cavity and elastically connected to the stationary iron core. The push rod assembly is connected to the moving iron core. Beneficial effects

[0030] This application's technical solution employs a multi-position limiting method, guiding the push rod assembly to multiple positions. The moving spring contact structure includes a housing, a push rod assembly, and an active spring. The housing has two sides, a first side and a second side, spaced apart to form a first cavity. The push rod assembly is disposed within the first cavity. The rod-shaped structure of the push rod assembly has two ends, a first end and a second end. The first end is slidably connected to the first side, and the second end is slidably connected to the second side. The active spring is connected to the first end. When the push rod assembly slides, it drives the active spring to slide. Because both the first and second ends of the push rod assembly are limited, the sliding of the active spring by the push rod assembly is smoother and avoids misalignment, resulting in a more stable contact connection. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1 is a schematic diagram of the first structure of the limiting rod of the push rod assembly of this application;

[0033] Figure 2 is a schematic diagram of the second structure of the limiting rod of the push rod assembly of this application;

[0034] Figure 3 is a schematic diagram of the yoke plate of the push rod assembly of this application;

[0035] Figure 4 is a first structural schematic diagram of the isolation structure of the push rod assembly of this application;

[0036] Figure 5 is a schematic diagram of the second structure of the isolation structure of the push rod assembly of this application;

[0037] Figure 6 is a schematic diagram of the upper shell of the push rod assembly of this application;

[0038] Figure 7 is a schematic diagram of the upper magnetic conductor of the push rod assembly of this application.

[0039] Explanation of icon numbers:

[0040] Label Name 1 Housing 23 Lower Magnetic Conductor 001 First Cavity 3 Auxiliary Moving Spring Assembly 002 Second Cavity 31 Mounting Base 11 Upper Housing 32 Auxiliary Moving Spring 111 First Side Plate 4 Push Rod Assembly 112 Boss 41 Push Rod 113 Main Contact 42 Limiting Rod 114 Auxiliary Contact 43 Mounting Bracket 12 Yoke Plate 431 Insulating Base 121 Through Hole 432 Bracket 122 Limiting Hole 44 Spring 2 Active Spring Assembly 5 Drive Assembly 21 Upper Magnetic Conductor 51 Stationary Iron Core 211 Second Side Plate 52 Moving Iron Core 212 Groove 53 Metal Housing 22 Active Spring 531 Sliding Cavity

[0041] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Embodiments of the present invention

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0043] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0044] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0045] Referring to Figures 1 to 7, this application proposes an embodiment of a movable spring contact structure, which includes a housing 1 and a push rod 41. The housing 1 is provided with a first side and a second side spaced apart, and a first cavity 001 is provided between the first side and the second side. The push rod 41 is disposed in the first cavity 001, and the push rod 41 is provided with a first end and a second end spaced apart along its length direction. The first end is slidably connected to the first side, and the second end is slidably connected to the second side.

[0046] Specifically, the housing 1 includes an upper shell 11 and a yoke plate 12. The yoke plate 12 is the second side, and the side of the upper shell 11 away from the yoke plate 12 is the first side. The yoke plate 12 is connected to the upper shell 11 and together with the upper shell 11, forms a first cavity 001. The upper shell 11 has a box-like structure, and the yoke plate 12 has a plate-like structure. The upper shell 11 is provided with a main contact 113 and an auxiliary contact 114, and the push rod 41 is provided with an active spring 22 and an auxiliary moving spring 32.

[0047] Furthermore, both the upper shell 11 and the yoke plate 12 are provided with holes or slots, and the rod structures or bosses 112 at both ends of the push rod 41 are correspondingly slidably connected to the holes or slots, so that the push rod 41 slides in one direction. The moving spring contact structure has two states: one is a closed state, in which the moving springs of the push rod 41 abut against the contacts, and the other is an open state, in which the moving springs of the push rod 41 disengage from the contacts.

[0048] In this embodiment, multiple position limiting methods are employed to guide the movement of the push rod assembly 4 to multiple positions. The moving spring contact structure includes a housing 1 and a push rod 41. The housing 1 has two sides, a first side and a second side, spaced apart to form a first cavity 001. The push rod 41 is disposed within the first cavity 001. The rod-like structure of the push rod 41 has two ends, a first end and a second end. The first end is slidably connected to the first side, and the second end is slidably connected to the second side. The active spring 22 is connected to the first end. When the push rod assembly 4 slides, it drives the active spring to slide. Because both the first and second ends of the push rod assembly 4 are limited, the sliding of the active spring 22 by the push rod assembly 4 is smoother and avoids misalignment, resulting in a more stable contact connection. Understandably, the rod-like structure deforms under torque and pressure, causing misalignment at both ends. Therefore, when both ends of the push rod 41 are slidably connected to both sides of the housing 1, the limited ends reduce the deformation of the push rod 41, making its movement more stable, smoother, and more precise.

[0049] Referring to Figures 1 to 7, this application proposes an embodiment in which the push rod 41 includes an active spring assembly 2 and a push rod assembly 4. The active spring assembly 2 is disposed in the first cavity 001, and the active spring assembly 2 is the first end, slidably connected to the first side. The active spring assembly 2 is connected to the push rod assembly 4, and the push rod assembly 4 is the second end, slidably connected to the second side.

[0050] Specifically, the multi-limiting push rod 41 is applied to a relay, which includes a housing 1, a yoke plate 12, an active spring 22, and a drive assembly 5. The housing 1 has a first limiting part. The yoke plate 12 is connected to the housing 1 and together with the housing 1 forms a first cavity 001. The yoke plate 12 also has a through hole 121 and a limiting hole 122 communicating with the first cavity 001. The active spring 22 is disposed in the first cavity 001. The active spring 22 includes an active spring assembly 2 and a push rod assembly 4. The active spring assembly 2 is movably connected to the push rod assembly 4. The active spring assembly 2 has a second limiting part, which is slidably connected to the first limiting part. The push rod assembly 4 also has a limiting rod 42, which passes through the through hole 121 and is slidably connected to the limiting hole 122. One end of the drive assembly 5 is connected to the yoke plate 12, and the other end is connected to the push rod assembly 4. The drive assembly 5 drives the push rod assembly 4 to move the active spring assembly 2, and the first limiting part and the second limiting part cooperate to guide and restrict the movement of the active spring assembly 2, and the limiting rod 42 guides and restricts the movement of the active spring assembly 2.

[0051] Specifically, the relay has a housing 1, and a yoke plate 12 and the housing 1 enclose a first cavity 001. The yoke plate 12 has a through hole 121 and a limiting hole 122. The active spring 22 passes through the through hole 121, with one end located inside the first cavity 001 and the other end located outside the first cavity 001. A contact is provided on the side of the housing 1 away from the yoke plate 12, and the active spring 22 can move within the first cavity 001 to abut or disengage from the contact. Further, the active spring 22 includes a push rod assembly 4 and an active spring assembly 2, which are movably connected, so that when the push rod assembly 4 pushes the active spring assembly to abut the contact, there is a buffering effect.

[0052] Because of the movable connection between the push rod assembly 4 and the active spring assembly 2, the active spring assembly 2 will wobble when the push rod assembly 4 pushes it. Therefore, the housing 1 is further provided with a first limiting part, and the active spring assembly 2 is provided with a second limiting part. The first limiting part and the second limiting part cooperate to limit the active spring assembly 2, so that the active spring 22 will not wobble. The push rod assembly 4 passes through the through hole 121, and one end drives the active spring assembly 2 to move within the first cavity 001 to abut or disengage from the contact. The push rod assembly 4 is also provided with a limiting rod 42, which is slidably connected to the limiting hole 122.

[0053] In this embodiment, a relay with a limiting structure is used. The relay housing 1 and the yoke plate 12 enclose a first cavity 001. The housing 1 has a first limiting part, and the yoke plate 12 has a through hole 121 and a limiting hole 122. The push rod 41 includes an active spring assembly 2 and a push rod assembly 4 that are movably connected. The active spring assembly 2 has a second limiting part. The first limiting part and the second limiting part cooperate to allow the active spring assembly 2 and the housing 1 to slide and guide the movement direction of the active spring 22. The push rod assembly 4 is disposed through the through hole 121 and has a limiting rod 42. The limiting rod 42 and the limiting hole 122 are slidably connected to allow the push rod assembly 4 and the yoke plate 12 to slide. The limiting hole 122 guides the movement direction of the push rod assembly 4. Since the active spring assembly 2 and the push rod assembly 4 are movably connected, both the active spring assembly 2 and the push rod assembly 4 are simultaneously limited. This ensures that the active reed assembly 2 can only move in a straight line and will not produce circumferential movement, thus avoiding friction between the active reed assembly 2 and the housing 1. It also prevents the hard ceramic housing 1 from wearing down the copper active reed assembly 2, and ensures that the active reed assembly 2 can move stably, thereby improving the stability and consistency of the relay in performing automatic switching, automatic adjustment, and circuit switching processes.

[0054] Referring to Figures 1 to 7, this application proposes an embodiment in which the active reed assembly 2 includes an active reed 22 and an anti-magnetic component. The active reed 22 is connected to the push rod assembly 4. The anti-magnetic component is disposed on both sides of the active reed 22, and the anti-magnetic component includes an upper magnetic conductor 21 and a lower magnetic conductor 23, with the upper magnetic conductor 21 slidably connected to the first side.

[0055] Specifically, the active reed 22 is a metal block structure, and the upper magnetic conductor 21 and the lower magnetic conductor 23 are two kinds of metal sheet structures, which are arranged on both sides of the active reed 22.

[0056] In this embodiment, when in the closed state, the upper magnetic conductor 21 and the lower magnetic conductor 23 are disposed on both sides of the active spring 22, which can resist the influence of current and magnet.

[0057] Referring to Figures 1 to 7, this application proposes an embodiment in which the housing 1 is provided with a first side plate 111 and the upper magnetic conductor 21 is provided with a second side plate 211, and the first side plate 111 and the second side plate 211 are slidably connected.

[0058] Specifically, the upper shell 11 includes a top plate and a first side plate 111, the side plate being connected to the top plate and angled. The upper magnetic conductor 21 includes a bottom plate and a second side plate 211, the bottom plate being connected to the bracket 432, the second side plate 211 being connected to the bottom plate and angled, and the first side plate 111 and the second side plate 211 being slidably connected.

[0059] Specifically, the angle between the first side plate 111 and the top plate is 0 degrees. A first side plate 111 is provided on each side of the top plate. The height of the first side plate 111 is greater than the length of the auxiliary contact 114 extending into the second cavity 002. The angle between the second side plate 211 and the bottom plate is 0 degrees. A second side plate 211 is provided on each side of the bottom plate. The first side plates 111 and the second side plates 211 on both sides abut against each other to form the second cavity 002.

[0060] Furthermore, the base plate and the lower magnetic conductor 23 are detachably connected so that the active spring 22 is clamped between the base plate and the lower magnetic conductor 23.

[0061] In this embodiment, the auxiliary contact 114 and the main contact 113 are separated by the first side plate 111 and the second side plate 211, and the sliding connection between the first side plate 111 and the second side plate 211 ensures that the auxiliary contact 114 and the main contact 113 are always separated, whether in the open or closed state.

[0062] Referring to Figures 1 to 7, this application proposes an embodiment in which the first side plate 111 is provided with a boss 112 and the second side plate 211 is provided with a groove 212. The boss 112 and the groove 212 cooperate to guide the sliding of the active spring 22.

[0063] Specifically, the first limiting part is a boss 112 on the first side plate 111, and the second limiting part is a groove 212 on the second side plate 211. The boss 112 and the groove 212 cooperate to make the upper shell 11 and the upper magnetic conductor 21 slidably connected.

[0064] In this embodiment, the boss 112 and the groove 212 cooperate to ensure that the upper shell 11 and the upper magnetic conductor 21 can only slide in one direction. This restricts the movement of the auxiliary moving spring assembly 3 and the active spring 22, preventing them from shaking internally.

[0065] Referring to Figures 1 to 7, this application proposes an embodiment in which the push rod assembly 4 includes a push rod 41 and a mounting bracket 43. The push rod 41 is slidably connected to the second side. The mounting bracket 43 is connected to the push rod 41, and the active spring assembly 2 is slidably connected to the mounting bracket 43.

[0066] Specifically, push rod 41 passes through housing 1 and drives active spring 22 to move. Mounting bracket 43 is connected to yoke plate 12. Mounting bracket 43 has a space inside. Active spring 22 slides in the space of mounting bracket 43. Mounting bracket 43 has groove 212. Lower magnetic guide 23 has boss 112 and is slidably connected to groove 212 of mounting bracket 43.

[0067] In this embodiment, the two ends of the push rod 41 are limited to the two sides of the housing 1, and the mounting bracket 43 limits the lower magnetic conductor 23 and the active spring 22, thereby improving the motion stability of the push rod assembly 4.

[0068] Referring to Figures 1 to 7, this application proposes an embodiment in which the mounting bracket 43 includes an insulating base 431 and a support 432. The insulating base 431 is connected to the push rod 41, and the active spring 22 is elastically connected to the insulating base 431. The support 432 is connected to the insulating base 431, and the support 432 is provided with a sliding cavity 531, in which the active spring assembly 2 is slidably connected.

[0069] Specifically, the lower magnetic guide 23 and the insulating base 431 are connected by an elastic element. The lower magnetic guide 23 is used to install the active spring 22, and the insulating base 431 is connected to the push rod 41, which passes through the through hole 121. The limiting rod 42 is also connected to the insulating base 431, and the push rod 41 and the limiting rod 42 are arranged in parallel. The bracket 432 is connected to the insulating base 431 to form a frame, and the two sides of the lower magnetic guide 23 are slidably connected to the bracket 432.

[0070] Furthermore, the elastic element is a spring 44 or a spring sheet, which is centrally connected between the lower magnetic conductor 23 and the insulating base 431. The position of the spring 44 or the spring sheet makes the connection between the active spring assembly 2 and the push rod 41 elastic, allowing the active spring assembly 2 to act as a buffer when it comes into contact with the contact head.

[0071] In this embodiment, when the push rod 41 moves, the limiting rod 42 and the limiting hole 122 cooperate to limit the movement of the push rod 41. The combination of the spring 44 and the spring sheet allows the active spring assembly 2 to play a buffering role when it abuts the contact head. The bracket 432 and the upper magnetic guide 21 limit the active spring 22, thereby preventing the active spring assembly 2 from rotating and hitting the ceramic shell, or causing the contact head to become unstable due to rotation.

[0072] Referring to Figures 1 to 7, this application proposes an embodiment in which the push rod 41 further includes an auxiliary moving spring assembly 3. The auxiliary moving spring assembly 3 includes a mounting base 31 and an auxiliary moving spring 32. The mounting base 31 is connected to a bracket 432, and the mounting base 31 and the first side plate 111 enclose a second cavity 002. The auxiliary moving spring 32 is connected to the mounting base 31 and located within the second cavity 002.

[0073] Specifically, the upper shell 11 is provided with an auxiliary contact 114. The upper magnetic conductor 21 is mounted on the bracket 432, and the bracket 432 is equipped with an auxiliary moving spring assembly 3. The mounting base 31 is an insulating structure and is mounted on the bracket 432, and the auxiliary moving spring 32 is mounted on the mounting base 31.

[0074] Furthermore, the first side plate 111 of the upper shell 11 and the second side plate 211 of the upper magnetic conductor 21 are combined together to form an isolation structure that encloses the auxiliary moving spring assembly 3 and the auxiliary contact 114 together, wherein the upper shell 11 is fastened to the upper magnetic conductor 21.

[0075] In this embodiment, the upper shell 11 is fixed in one position, and the upper magnetic guide 21 moves with the push rod 41. This causes the drive assembly 5 to drive the auxiliary moving spring assembly 3 located on the upper magnetic guide 21 to abut against or disengage from the auxiliary contact 114 located on the upper shell 11. This makes the space of the second cavity 002 variable, but the auxiliary moving spring assembly 3 is always isolated from the active spring assembly 2. Furthermore, the isolation structure is detachable, which also facilitates the installation of the auxiliary moving spring assembly 3 within the isolation structure.

[0076] Referring to Figures 1 to 7, this application proposes an embodiment in which a through hole 121 and a limiting hole 122 are provided on the second side. The push rod assembly 4 further includes a limiting rod 42, which is connected to the mounting bracket 43 and is arranged parallel to the push rod 41. The push rod 41 is slidably connected to the through hole 121, and the limiting rod 42 is slidably connected to the limiting hole 122.

[0077] Specifically, the yoke plate 12 has a through hole 121 and a plurality of limiting holes 122, with the plurality of limiting holes 122 surrounding the through hole 121. The push rod assembly 4 has a plurality of limiting rods 42, with one limiting rod 42 slidably connected to one limiting hole 122. The second side has a through hole 121 and a plurality of limiting holes 122, with the plurality of limiting holes 122 surrounding the through hole 121. The mounting bracket 43 connects one push rod 41 and a plurality of limiting rods 42, with one limiting rod 42 slidably connected to one limiting hole 122.

[0078] Specifically, the yoke plate 12 has a through hole 121, and two limiting holes 122 are located on opposite sides of the through hole 121, resulting in a total of two limiting rods 42. Understandably, the active spring assembly 2 has a long, narrow structure. One end of the push rod assembly 4 is connected to the center of the active spring assembly 2, and the other end passes through the through hole 121. The two limiting rods 42 are located on either side of the push rod assembly 4. Furthermore, the two limiting holes 122 and the through hole 121 are arranged in a straight line, and the direction of extension of this line is the same as the length extension direction of the long, narrow structure of the active spring assembly 2. This arrangement ensures that the limiting rods 42 experience more balanced forces when the active spring assembly 2 abuts against the contact head.

[0079] Furthermore, the length of the limiting hole 122 ensures that the limiting rod 42 will not disengage from the limiting hole 122 when it moves with the push rod assembly 4. The diameter of the through hole 121 is slightly larger than the diameter of the push rod assembly 4, so that the two limiting rods 42 support the push rod assembly 4 and prevent the push rod assembly 4 from rubbing against the wall of the through hole 121.

[0080] In this embodiment, multiple limiting rods 42 can better restrict the linear movement of the active spring 22 without causing circumferential movement. This also ensures that the force on the active spring 22 is more even.

[0081] Referring to Figures 1 to 7, this application proposes an embodiment in which the moving spring contact structure further includes a driving assembly 5. The driving assembly 5 is connected to the side of the yoke plate 12 facing away from the first cavity 001, and is also connected to the push rod 41 for driving the push rod 41 to move. The driving assembly 5 includes a metal shell 53, a stationary iron core 51, and a moving iron core 52. The metal shell 53 is connected to the yoke plate 12 and has a sliding cavity 531. The stationary iron core 51 is fixedly connected to the sliding cavity 531. The moving iron core 52 is movably connected to the sliding cavity 531, and the stationary iron core 51 and the moving iron core 52 are connected by a spring 44. The active spring 22 is connected to the moving iron core 52.

[0082] Specifically, the metal housing 53 is connected to the yoke plate 12 of a relay. The metal housing 53 has a sliding cavity 531, one end of which, adjacent to the yoke plate 12, is fixedly connected to the stationary iron core 51. The moving iron core 52 is placed within the sliding cavity 531 and can be slidably disposed. A spring 44 is also provided between the stationary iron core 51 and the moving iron core 52. The stationary iron core 51 has a coaxial hole in the middle, identical to the through hole 121. The push rod 41 is located in the middle of the through hole 121 and the coaxial hole, one end of which is connected to the moving iron core 52, and the other end is provided with an active spring 22 and an auxiliary moving spring assembly 3.

[0083] In this embodiment, when the relay is in the off state, driven by the spring 44, the stationary iron core 51 and the moving iron core 52 are always held at the farthest ends of the sliding cavity 531. This causes the active spring 22 and the auxiliary moving spring assembly 3 to disengage from the main contact and the auxiliary contact.

[0084] Referring to Figures 1 to 7, this application proposes an embodiment in which the yoke plate 12 and the limiting rod 42 have the same hardness.

[0085] Specifically, the yoke plate 12 and the limiting rod 42 are made of the same material, or they are made of different materials but with the same hardness.

[0086] In this embodiment, the friction between the yoke plate 12 and the limit rod 42 bracket 432, which have the same hardness, makes them less prone to wear, thereby avoiding the generation of a large amount of dust. This prevents the relay from becoming unstable due to dust accumulation inside the relay.

[0087] This application also proposes an electrical device comprising a body and a relay. The specific structure of the relay is as described in the above embodiments. Since this relay employs all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here. The relay is electrically connected to the body.

[0088] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A moving spring contact structure, wherein, The movable spring contact structure includes: A housing having a first side and a second side spaced apart, with a first cavity between the first side and the second side; A push rod assembly, wherein the push rod assembly is disposed within the first cavity, and the push rod assembly has a first end and a second end spaced apart along its length, the first end being slidably connected to the first side, and the second end being slidably connected to the second side; and An active spring is disposed in the first cavity and connected to the first end.

2. The moving spring contact structure according to claim 1, wherein, The push rod assembly includes: A push rod, which is slidably connected to the second side; and The mounting bracket is connected to the push rod and slidably connected to the first side, and the active spring is slidably connected to the mounting bracket.

3. The moving spring contact structure according to claim 2, wherein, The mounting bracket includes: An insulating base, the insulating base being connected to the push rod, and an active spring being elastically connected to the insulating base; and A bracket is connected to the insulating base and slidably connected to the first side. The bracket has a sliding cavity, and the active spring is slidably connected inside the sliding cavity.

4. The moving spring contact structure according to claim 3, wherein, The push rod assembly further includes an anti-magnetic component, which is disposed on both sides of the active spring. The anti-magnetic component includes an upper magnetic conductor and a lower magnetic conductor, with the upper magnetic conductor slidably connected to the first side.

5. The moving spring contact structure according to claim 4, wherein, The housing is provided with a first side plate, and the upper magnetic conductor is provided with a second side plate, with the first side plate and the second side plate being slidably connected.

6. The moving spring contact structure according to claim 5, wherein, The first side plate has a boss, and the second side plate has a groove. The boss and the groove cooperate to guide the sliding of the active spring.

7. The moving spring contact structure according to claim 6, wherein, The movable reed contact structure further includes an auxiliary movable reed assembly, which includes: Mounting base, the mounting base connecting bracket, the mounting base and the first side plate enclosing to form a second cavity; and An auxiliary moving spring is connected to the mounting base and located within the second cavity.

8. The moving spring contact structure according to claim 2, wherein, The second side is provided with a through hole and a limiting hole. The push rod assembly also includes a limiting rod. The limiting rod is connected to the mounting bracket and is arranged parallel to the push rod. The push rod is slidably connected to the through hole, and the limiting rod is slidably connected to the limiting hole.

9. The moving spring contact structure according to claim 8, wherein, The second side is provided with a through hole and a plurality of limiting holes, the plurality of limiting holes surrounding the through hole, the mounting bracket connecting a push rod and a plurality of limiting rods, and a limiting rod slidably connected to a limiting hole.

10. The moving spring contact structure according to claim 1, wherein, The housing includes an upper shell and a yoke plate, the yoke plate being the second side, and the side of the upper shell away from the yoke plate being the first side. The yoke plate is connected to the upper shell and together with the upper shell forms a first cavity.

11. The moving spring contact structure according to claim 10, wherein, The moving spring contact structure also includes a drive assembly, which is connected to the side of the yoke plate facing away from the first cavity. The drive assembly is also connected to the push rod assembly for driving the push rod assembly to move.

12. The moving spring contact structure according to claim 11, wherein, The driving component includes: A metal shell, the metal shell being connected to the yoke plate, the metal shell being provided with a sliding cavity; A stationary iron core, wherein the stationary iron core is fixedly connected within the sliding cavity; and A moving iron core is movably connected within the sliding cavity and elastically connected to the stationary iron core. The push rod assembly is connected to the moving iron core.

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