Relay

Abstract

The present application discloses a relay. The relay comprises a housing, a driving structure, a main movable contact spring assembly, and an auxiliary movable contact spring assembly. The housing is provided with a first cavity. The driving structure is arranged in the first cavity and encloses a second cavity together with the housing. The first cavity is arranged spaced from the second cavity. The main movable contact spring assembly is disposed in the first cavity. The auxiliary movable contact spring assembly is disposed in the second cavity.

Description

relay

[0001] This application claims priority to Chinese patent application No. 202421634214.X, 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 relay. 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-current input circuit to control a large-current output circuit, achieving functions such as automatic switching, automatic adjustment, and circuit conversion.

[0004] Existing relays have an input circuit consisting of an auxiliary contact and an auxiliary moving reed, and an output circuit consisting of a main contact and an auxiliary moving reed. The auxiliary moving reed and the main reed are located on the same structure. A small current input circuit controls the auxiliary moving reed to drive the main reed and achieve a large current output circuit. However, the main contacts, main reed, auxiliary contacts, and auxiliary moving reed are all made of highly conductive materials. Arcing can easily occur between the main contacts and auxiliary contacts, which can damage the internal structure of the relay. Technical issues

[0005] The main objective of this application is to provide a relay designed to address the problem of arcing between the main contacts and auxiliary contacts, which can damage the internal structure of the relay. Technical solutions

[0006] To achieve the above objectives, this application proposes a relay comprising:

[0007] The housing has a first cavity;

[0008] A driving structure is provided in the first cavity and surrounds the housing to form a second cavity, wherein the first cavity and the second cavity are spaced apart.

[0009] An active reed assembly, wherein the active reed assembly is disposed within the first cavity; and

[0010] An auxiliary moving reed assembly is disposed within the second cavity.

[0011] In one embodiment, the driving structure includes:

[0012] A drive assembly connected to the housing;

[0013] A push rod assembly, one end of which is connected to the drive assembly, and the other end of which is provided with the active spring assembly, the active spring assembly being located in the first cavity; and

[0014] An isolation structure is provided, which is connected to the side of the active reed assembly away from the push rod. The isolation structure and the housing enclose the second cavity, and the auxiliary active reed assembly is connected to the isolation structure.

[0015] In one embodiment, the isolation structure includes a first side plate and a mounting base, two first side plates are spaced apart from each other in the housing, the mounting base is connected to the push rod assembly, and the two first side plates and the mounting base enclose a second cavity.

[0016] Furthermore, the push rod assembly is provided with a second side plate, and two second side plates are connected to both sides of the active spring assembly, with one first side plate slidably connected to one second side plate.

[0017] In one embodiment, the first side plate is provided with a boss, and the second side plate is provided with a groove, wherein the boss and the groove are slidably connected.

[0018] In one embodiment, the housing includes:

[0019] A yoke plate is provided with a through hole, a push rod assembly is inserted through the through hole, one end of the push rod assembly is connected to the drive assembly, and the other end of the push rod assembly is connected to the active spring assembly;

[0020] The upper shell is connected to the yoke plate and encloses the yoke plate to form a first cavity. The upper shell is provided with two first side plates.

[0021] In one embodiment, the active reed assembly includes:

[0022] An active reed, the active reed being connected to the push rod assembly; and

[0023] A magnetically conductive anti-magnetic component is provided on both sides of the active spring. The magnetically conductive anti-magnetic component includes an upper magnetically conductive element and a lower magnetically conductive element, with the upper magnetically conductive element slidably connected to the first side.

[0024] In one embodiment, the push rod assembly includes:

[0025] A push rod, slidably connected to the through hole, one end of which is connected to the drive assembly, and the other end extending into the first cavity; and

[0026] The mounting bracket is connected to one end of the push rod located in the first cavity. The active spring or the lower magnetic conductor is elastically connected to the mounting bracket, and the upper magnetic conductor is connected to the end of the mounting bracket away from the push rod.

[0027] In one embodiment, the mounting bracket includes:

[0028] An insulating base, the insulating base being connected to the push rod, and the active spring and / or the lower magnetic conductor being elastically connected to the insulating base; and

[0029] A bracket is connected to the insulating base. The bracket has a sliding cavity, and the active spring and the lower magnetic conductor are slidably connected in the sliding cavity. The upper magnetic conductor is connected to the end of the bracket away from the push rod.

[0030] In one embodiment, the auxiliary moving spring assembly includes two auxiliary moving springs connected to both sides of the mounting base, which is connected to the bracket.

[0031] In one embodiment, the upper shell is provided with a main contact and an auxiliary contact, the main contact extending into the first cavity and the auxiliary contact extending into the second cavity, and the first side plate and the second side plate are located between the main contact and the auxiliary contact. Beneficial effects

[0032] The relay in this application employs a push-rod structure with a separated first and second cavity, where the active reed assembly is located in the first cavity and the auxiliary reed assembly in the second cavity. This ensures the active and auxiliary reeds are always separated, and the drive structure controls their movement. When the relay is open, the auxiliary contact disengages from the auxiliary reed, and the main contact disengages from the active reed. Controlling the movement of the auxiliary reed in the input circuit moves the active reed, causing the auxiliary reed to contact the auxiliary contact, and the active reed to contact the main contact, closing the relay and thus the output circuit. This enables the relay to perform functions such as automatic switching, automatic adjustment, and circuit switching. Furthermore, because the first and second cavities are separated, although current flows through both the main and auxiliary contacts, no electric arc is generated between them, preventing damage to the relay structure. Attached Figure Description

[0033] 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.

[0034] Figure 1 is a schematic diagram of the structure of the relay of this application;

[0035] Figure 2 is a schematic diagram of the disconnected state of the relay in this application;

[0036] Figure 3 is a schematic diagram of the closed state of the relay in this application;

[0037] Figure 4 is a structural schematic diagram of the relay of this application;

[0038] Figure 5 is a schematic diagram of the upper housing of the relay of this application;

[0039] Figure 6 is a schematic diagram of the upper magnetic conductor of the relay in this application.

[0040] Explanation of icon numbers:

[0041] 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

[0042] 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

[0043] 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.

[0044] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0045] 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.

[0046] Referring to Figures 1 to 6, this application proposes an embodiment in which the relay includes a housing 1, a driving structure, an active reed assembly 2, and an auxiliary active reed assembly 3. The housing 1 has a first cavity 001. The driving structure is disposed in the first cavity 001 and, together with the housing 1, forms a second cavity 002, with the first cavity 001 and the second cavity 002 spaced apart. The active reed assembly 2 is disposed within the first cavity 001. The auxiliary active reed assembly 3 is disposed within the second cavity 002.

[0047] Specifically, the top of the housing 1 is provided with a first mounting hole and a second mounting hole. The main contact 113 is mounted at the first mounting hole, with a portion of the main contact 113 extending into the receiving cavity and the other portion extending out of the receiving cavity. The auxiliary contact 114 is mounted at the second mounting hole, with a portion of the auxiliary contact 114 extending into the receiving cavity and the other portion extending out of the receiving cavity. The bottom of the housing 1 is provided with a through hole 121, and the push rod assembly 4 is connected to the through hole 121. Furthermore, the drive structure has an active spring assembly 2 and an auxiliary moving spring assembly 3 at one end within the receiving cavity. Both the active spring assembly 2 and the auxiliary moving spring assembly 3 can move within the receiving cavity, and the active spring 22 and the auxiliary moving spring 32 move synchronously.

[0048] Furthermore, the drive structure divides the accommodating cavity into a first cavity 001 and a second cavity 002. The first cavity 001 is a concave space, and the second cavity 002 is an octagonal space. The push rod 41 is located in the first cavity 001, with an auxiliary moving spring assembly 3 at its top and located in the second cavity 002, and an active spring assembly 2 in the middle of the push rod 41 located in the first cavity 001. An auxiliary contact 114 is located in the middle of the relay and extends into the second cavity 002, while a main contact 113 is located on the side of the relay and extends into the first cavity 001.

[0049] In this embodiment, a push rod 41 structure with a separated first cavity 001 and second cavity 002 is used, so that the active reed assembly 2 is located in the first cavity 001, and the auxiliary reed assembly 3 is located in the second cavity 002. The active reed 22 and the auxiliary reed 32 are always separated, and the drive structure can control the movement of the active reed assembly 2 and the auxiliary reed assembly 3. When the relay is in the open state, the auxiliary contact disengages from the auxiliary reed 32, and the main contact also disengages from the active reed 22. The input circuit controls the movement of the auxiliary reed 32, causing the active reed 22 to move, so that the auxiliary reed 32 abuts against the auxiliary contact, and the active reed 22 also abuts against the main contact, turning the relay into a closed state, closing the output circuit, and thus performing functions such as automatic switching, automatic adjustment, and circuit switching. Furthermore, because the first cavity 001 and the second cavity 002 are separated, although current flows through both the main contact 113 and the auxiliary contact 114, no electric arc is generated between them, preventing electric arc damage to the relay structure.

[0050] Referring to Figures 1 to 6, this application proposes an embodiment in which the driving structure includes a driving component 5, a push rod assembly 4, and an isolation structure. The driving component 5 is connected to the housing 1. One end of the push rod assembly 4 is connected to the driving component 5, and the other end of the push rod assembly 4 is provided with the active spring assembly 2, which is located in the first cavity 001. The isolation structure is connected to the side of the active spring assembly 2 away from the push rod 41, and the isolation structure and the housing 1 enclose the second cavity 002. The auxiliary active spring assembly 3 is connected to the isolation structure.

[0051] Specifically, the drive assembly 5 has an output end that moves in a linear direction. The push rod assembly 4 is a rod-shaped structure, with one end connected to the output end and the other end located adjacent to the contact assembly. A mounting base 31 is located at the end of the push rod assembly 4 adjacent to the contact assembly, and an active spring 22 is mounted on the mounting base 31. An isolation structure is located on the side of the mounting base 31 away from the push rod 41. The isolation structure and the housing 1 enclose a second cavity 002, and an auxiliary moving spring 32 is located within the second cavity 002. It can be understood that the drive structure, along the linear direction, consists of the drive assembly 5, the push rod assembly 4, the mounting base 31 with the active spring 22, and the isolation structure with the auxiliary moving spring 32.

[0052] In this embodiment, the drive assembly 5 moves, causing the push rod assembly 4 to move the active spring 22 and the auxiliary moving spring 32 together, thus switching the relay between an open and closed state. Furthermore, since the auxiliary moving spring 32 is inside the isolation structure, and the active spring 22 is outside the isolation structure, the space between the auxiliary contact 114 connecting to the auxiliary moving spring 32 and the main contact 113 connecting to the active spring 22 is blocked by the isolation structure, preventing the generation of an electric arc and thus avoiding damage to the relay structure.

[0053] Referring to Figures 1 to 6, this application proposes an embodiment in which the isolation structure includes an upper shell 11 and an upper magnetic conductor 21. The upper shell 11 is connected to the relay. The upper magnetic conductor 21 is connected to the mounting base 31, and the upper magnetic conductor 21 is provided with the auxiliary moving spring 32. The upper magnetic conductor 21 and the upper shell 11 together form the second cavity 002.

[0054] Specifically, the upper housing 11 is connected to the relay, and the upper housing 11 has a second mounting hole for mounting the auxiliary contact 114. The upper magnetic conductor 21 is mounted on the mounting base 31, and the upper magnetic conductor 21 is equipped with an auxiliary moving spring 32. The upper housing 11 and the upper magnetic conductor 21 are combined to form a box structure, which encloses the auxiliary moving spring 32 and the auxiliary contact 114 together, wherein the combination method is that the upper housing 11 is fastened to the upper magnetic conductor 21.

[0055] In this embodiment, the upper shell 11 is fixed in one position, and the upper magnetic guide 21 moves with the drive assembly 5. This causes the drive assembly 5 to drive the auxiliary moving spring 32 located on the upper magnetic guide 21 to abut or disengage from the auxiliary contact located on the upper shell 11. This allows the space of the second cavity 002 to be variable, but the auxiliary moving spring 32 is always isolated from the active spring 22. Furthermore, the isolation structure is detachable, facilitating the installation of the auxiliary moving spring 32 within the isolation structure.

[0056] Referring to Figures 1 to 6, this application proposes an embodiment in which the isolation structure includes a first side plate 111 and a mounting base 31. Two first side plates 111 are spaced apart on the housing 1, and the mounting base 31 is connected to the push rod assembly 4. The two first side plates 111 and the mounting base 31 enclose a second cavity 002. The push rod assembly 4 is provided with a second side plate 211, and two second side plates 211 are connected to both sides of the active spring assembly 2. One first side plate 111 is slidably connected to one second side plate 211.

[0057] Specifically, the housing 1 includes an upper shell 11 and a yoke plate 12. The upper shell 11 includes a top plate and a first side plate 111. The first side plate 111 is connected to the top plate and is angled. The upper magnetic conductor 21 includes a bottom plate and a second side plate 211. The bottom plate is connected to the mounting base 31, and the second side plate 211 is connected to the bottom plate and is angled. The first side plate 111 and the second side plate 211 are slidably connected.

[0058] Furthermore, the yoke plate 12 is provided with a through hole 121, through which the push rod assembly 4 passes. One end of the push rod assembly 4 is connected to the drive assembly 5, and the other end of the push rod assembly 4 is connected to the active spring assembly 2. The upper shell 11 is connected to the yoke plate 12 and forms a first cavity 001 by enclosing the yoke plate 12. The upper shell 11 is provided with two first side plates 111.

[0059] Specifically, the angle between the first side plate 111 and the top plate is 90 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 90 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] 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.

[0061] Referring to Figures 1 to 6, 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 make the upper shell 11 and the upper magnetic conductor 21 slidably connected.

[0062] 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 32 and the active spring 22, preventing them from shaking internally.

[0063] Referring to Figures 1 to 6, 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.

[0064] Specifically, the upper magnetic guide assembly is connected to the mounting bracket 43, and the upper magnetic guide 21 has a second side plate 211 and is slidably connected to the housing 1. The lower magnetic guide 23 is connected to the bottom of the active spring 22 and moves with the active spring 22. The upper magnetic guide 21 and the lower magnetic guide 23 are always located on both sides of the active spring 22.

[0065] Through this embodiment, the anti-magnetic component can improve the stability of relay operation.

[0066] Referring to Figures 1 to 6, 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.

[0067] 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.

[0068] 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.

[0069] Referring to Figures 1 to 6, 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] Referring to Figures 1 to 6, this application proposes an embodiment in which the auxiliary moving spring assembly 3 includes two auxiliary moving springs 32, which are connected to both sides of the mounting base 31. The mounting base 31 is connected to the bracket 432. The auxiliary moving spring assembly 3 includes the mounting base 31 and the auxiliary moving springs 32. The mounting base 31 is connected to the bracket 432, and the mounting base 31 and the first side plate 111 enclose a second cavity 002. The auxiliary moving springs 32 are connected to the mounting base 31 and located within the second cavity 002.

[0074] 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.

[0075] 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.

[0076] 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 allows the space of the second cavity 002 to be variable, but the auxiliary moving spring assembly 3 is always isolated from the active spring assembly 2. Furthermore, the isolation structure is detachable, facilitating the installation of the auxiliary moving spring assembly 3 within the isolation structure.

[0077] Referring to Figures 1 to 6, this application proposes an embodiment in which 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 provided with 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. The stationary iron core 51 and the moving iron core 52 are connected by a spring 44, and the push rod assembly 4 is connected to the moving iron core 52.

[0078] Specifically, the metal housing 53 is connected to the yoke plate 12 of a relay. The yoke plate 12 has a through hole 121 in the middle, and the push rod assembly 4 passes through the through hole 121. The metal housing 53 has a sliding cavity 531. One end of the sliding cavity 531 adjacent to the yoke plate 12 is fixedly connected to the stationary iron core 51, and the moving iron core 52 is placed in 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, which is the same as the through hole 121. The push rod assembly 4 is located in the middle of the through hole 121 and the coaxial hole. One end of its assembly is connected to the moving iron core 52, and the other end has an active spring 22 and an auxiliary moving spring 32.

[0079] 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 32 to disengage from the main contact and the auxiliary contact, respectively.

[0080] Referring to Figures 1 to 6, this application proposes an embodiment in which the push rod assembly 4 further includes an elastic element. One end of the push rod 41 is connected to the drive assembly 5. The mounting base 31 includes an insulating base 431 and a lower magnetic guide 23, which are spaced apart. The active spring 22 is connected to the lower magnetic guide 23. The elastic element is connected between the insulating base 431 and the lower magnetic guide 23.

[0081] Specifically, push rod 41 passes through through hole 121, with one end connected to moving iron core 52 and the other end connected to elastic element. The elastic element is spring 44, with one end connected to push rod 41 and the other end connected to mounting base 31. Mounting base 31 is equipped with active spring 22.

[0082] Furthermore, the mounting base 31 includes an insulating base 431 and a lower magnetic guide 23. The insulating base 431 is connected to the push rod 41, and the active spring 22 is connected to the lower magnetic guide 23. Specifically, the upper magnetic guide 21 and the lower magnetic guide 23 clamp the active spring 22. The lower magnetic guide 23 is connected to the insulating base 431 by a spring 44, so that the active spring 22 has an elastic buffer stroke.

[0083] In this embodiment, when the relay is in the closed state, the push rod 41 pushes the active spring 22 and the auxiliary moving spring 32 to abut against the main contact and the auxiliary contact. Under the action of the elastic element, the active spring 22 and the auxiliary moving spring 32 abut against the main contact and the auxiliary contact in an elastic manner, which not only improves the firmness of the abutment, but also avoids damage to the active spring 22, the auxiliary moving spring 32, the main contact, and the auxiliary contact.

[0084] Referring to Figures 1 to 6, this application proposes an embodiment in which the upper shell 11 is provided with a main contact 113 and an auxiliary contact 114. The main contact 113 extends to the first cavity 001, and the auxiliary contact 114 extends to the second cavity 002. The first side plate 111 and the second side plate 211 are located between the main contact 113 and the auxiliary contact 114.

[0085] Specifically, the upper shell 11 has a box-shaped structure. The top of the upper shell 11 has a first mounting hole and a second mounting hole for mounting the main contacts and auxiliary contacts. The upper shell 11 also has a first side plate 111 located between the first and second mounting holes to separate the main contact 113 and the auxiliary contact 114. The length of the first side plate 111 is greater than the length of the main contact 113 within the receiving cavity, and also greater than the length of the auxiliary contact 114 within the receiving cavity. The bottom of the upper shell 11 is open to facilitate the installation of the yoke plate 12. The yoke plate 12 has a through hole 121 in the middle for installing the push rod 41 structure.

[0086] Furthermore, when the yoke plate 12 is installed on the upper housing 11, the auxiliary moving spring 32 is adjacent to the auxiliary contact 114, and the active spring 22 is adjacent to the main contact 113. The push rod 41 structure and the partition, by dividing the receiving cavity into a first cavity 001 and a second cavity 002, understandably prevent arcing between the main contact 113 and the auxiliary contact 114 even if the first cavity 001 and the second cavity 002 are not completely separated.

[0087] In this embodiment, the space between the main contact 113 and the auxiliary contact 114 is separated by a partition, so that although current flows through both the main contact 113 and the auxiliary contact 114, no electric arc is generated between them, thus preventing the electric arc from damaging the relay structure.

[0088] Referring to Figures 1 to 6, this application proposes an embodiment in which the housing 1 is provided with a first mounting hole and a second mounting hole, and the contact assembly includes a main contact 113 and an auxiliary contact 114. The main contact 113 is mounted in the first mounting hole and extends into the first cavity 001. The auxiliary contact 114 is mounted in the second mounting hole and extends into the second cavity 002.

[0089] Specifically, the upper shell 11 has a main contact on each side, and two auxiliary contacts are provided between the two main contacts. The two first side plates 111 are respectively provided on both sides of the two auxiliary contacts and located between the auxiliary contacts and the main contacts. The second cavity 002 is formed between the two first side plates 111.

[0090] Furthermore, the upper shell 11 is provided with two first side plates 111, which divide the top of the upper shell 11 into three cavities: a left cavity, a middle cavity, and a right cavity. There are two main contacts 113, located on both sides of the top of the upper shell 11, one in the left cavity and one in the right cavity. There are two auxiliary contacts 114, located in the middle of the top of the upper shell 11, i.e., in the middle cavity.

[0091] Furthermore, the line connecting the centers of the two first mounting holes is perpendicular to the line connecting the centers of the two second mounting holes. Understandably, the main contact 113 carries a large current, while the auxiliary contact 114 carries a small current, making the main contact 113 much larger than the auxiliary contact 114, thus making the first mounting hole larger than the second mounting hole.

[0092] In this embodiment, two main contacts 113 are located on both sides of the housing 1, and the two ends of the active spring 22 are respectively connected to the main contacts 113 on both sides to form an output circuit. Two auxiliary contacts 114 are located on the other two sides of the housing 1, and the two ends of the auxiliary moving spring 32 are respectively connected to the auxiliary contacts 114 on both sides to form an input circuit. Since the main contacts 113 are much larger than the auxiliary contacts 114, the line connecting the centers of the two first mounting holes is perpendicular to the line connecting the centers of the two second mounting holes. This arrangement can reasonably reduce the cavity area of ​​the housing 1, thereby reducing the size of the relay.

[0093] Referring to Figures 1 to 6, this application proposes an embodiment in which the upper shell 11 is made of ceramic material. Nitrogen gas is injected into the receiving cavity.

[0094] Specifically, both the upper shell 11 and the first side plate 111 are made of ceramic. The upper shell 11 and the upper magnetic conductor 21 are detachably connected, and the upper magnetic conductor 21 can be made of other materials for easy processing and installation. The receiving cavity is first evacuated, and then injected with gases such as nitrogen.

[0095] In this embodiment, the ceramic material of the upper shell 11 makes it less likely for electric arcs to be generated between the main contact 113 and the auxiliary contact 114 and the shell 1, thus preventing damage to the relay structure from electric arcs. The nitrogen-filled cavity also makes it less likely for electric arcs to be generated.

[0096] 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 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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